Suzy B Software 2/Suzy B Software CD-ROM 2 (1994).iso/nasa/news6/news6.txt

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                                                                           NEWS6
    # From                 Date         Subject

    1                      16-SEP-1991  Magellan CDROMS
    2                      16-SEP-1991  Anti-Greenhouse Effect Discovered on Titan
    3                      16-SEP-1991  Magellan Update - 09/06/91
    4                      16-SEP-1991  Galileo Update - 09/09/91
    5                      16-SEP-1991  Magellan Update - 09/09/91
    6                      16-SEP-1991  Magellan Update - 09/10/91
    7                      16-SEP-1991  Galileo Update - 09/10/91
    8                      16-SEP-1991  Magellan Discoveries (article)
    9                      16-SEP-1991  Magellan Update - 09/11/91
   10                      16-SEP-1991  Galileo Update - 09/11/91
   11                      16-SEP-1991  Galileo Update - 09/12/91
   12                      16-SEP-1991  Magellan Update - 09/12/91
   13                      16-SEP-1991  Ulysses Update - 09/13/91
   14                      16-SEP-1991  Galileo Update - 09/13/91
   15                      16-SEP-1991  Magellan Update - 09/13/91
   16                      16-SEP-1991  Magellan Update - 09/16/91
   17                      16-SEP-1991  Re: Is Venus landslide recanted?
   18                      17-SEP-1991  Galileo Update - 09/16/91
   19                      17-SEP-1991  HQ RELEASE 91-147/NASA, USA TODAY, DISCOVERY CHANNELL...
   20                      17-SEP-1991  Test Message
   21                      17-SEP-1991  HQ 91-148/NEW OFFICE ANNOUNCED
   22                      17-SEP-1991  NEWS RELEASE/KSC LANDINGS
   23                      17-SEP-1991  MCC STATUS 10 & 11
   24                      17-SEP-1991  MISSION CONTROL STATUS REPORT #12
   25                      18-SEP-1991  HQ91-149/J.R. THOMPSON RESIGNSdadi
   26                      18-SEP-1991  Mission Control Status - Pre Entry
   27                      18-SEP-1991  Galileo Update - 09/17/91
   28                      18-SEP-1991  Magellan Update - 09/17/91
   29                      18-SEP-1991  Ulysses Update - 09/16/91
   30                      23-SEP-1991  Ulysses Update - 09/18/91
   31                      23-SEP-1991  Magellan Update - 09/18/91
   32                      23-SEP-1991  Galileo Update - 09/18/91
   33                      23-SEP-1991  Galileo Update #2 - 09/19/91
   34                      23-SEP-1991  Galileo Update - 09/19/91
   35                      23-SEP-1991  Magellan Update - 09/19/91
   36                      23-SEP-1991  Galileo Update - 09/20/91
   37                      23-SEP-1991  Magellan Update - 09/20/91
   38                      24-SEP-1991  Postage Stamp Ceremony at JPL
   39                      24-SEP-1991  Galileo Update - 09/23/91
   40                      24-SEP-1991  New Mars Mini-Rover Successfully Tested
   41                      24-SEP-1991  Galileo Update - 09/24/91
   42                      24-SEP-1991  Magellan Update - 09/24/91
   43                      24-SEP-1991  HQ RELEASE 91-150/SLS-1 NEW DISCOVERIES
   44                      25-SEP-1991  Galileo Update - 09/25/91
   45                      25-SEP-1991  Magellan Update - 09/25/91
   46                      25-SEP-1991  Ulysses Update - 09/23/91
   47                      25-SEP-1991  Galileo Update #2 - 09/25/91
   48                      27-SEP-1991  Ulysses Update - 09/26/91
   49                      27-SEP-1991  Galileo Update - 09/26/91
   50                      27-SEP-1991  Magellan Update #2 - 09/26/91
   51                      27-SEP-1991  Galileo Detects Lightning on Venus
   52                      27-SEP-1991  Magellan Update - 09/26/91
   53                      27-SEP-1991  New Magellan Images Released
   54                      27-SEP-1991  Galileo Update - 09/27/91
   55                      27-SEP-1991  Magellan Update - 09/27/91
   56                      27-SEP-1991  Galileo Update #2 - 09/27/91
   57                      27-SEP-1991  HQ 91-155/UARS RESULTS
   58                      27-SEP-1991  HQ 91-154/TSS PAYLOAD SPECIALIST
   59                      27-SEP-1991  HQ 91-156/VENUS LIGHTNING
   60                      27-SEP-1991  HQ N91-67/NEW MAGELLAN PHOTOS
   61                      27-SEP-1991  HQ 91-157/MINORITY AWARDS
   62                      27-SEP-1991  Position Announcement - Chair, Physics Department
   63                      27-SEP-1991  Re: New Mars Mini-Rover Successfully Tested
   64                      30-SEP-1991  More Magellan GIF Images
   65                      30-SEP-1991  Galileo Update - 09/30/91
   66                      30-SEP-1991  HQ 91-158/TRULY BUDGET STATEMENT
   67                      30-SEP-1991  HQ N91-68/Image of Sun
   68                      30-SEP-1991  Daily News in Brief 9/30/91
   69                       3-OCT-1991  Yet More Magellan Images
   70                       3-OCT-1991  Galileo Update - 10/01/91
   71                       3-OCT-1991  Magellan Update - 10/01/91
   72                       3-OCT-1991  Magellan Update - 09/30/91
   73                       3-OCT-1991  Galileo Update - 10/02/91
   74                       3-OCT-1991  Magellan Update - 10/02/91
   75                       3-OCT-1991  Hubble Space Telescope Monthly Status Report
   76                       3-OCT-1991  Magellan Update - 10/03/91
   77                       3-OCT-1991  Galileo Update - 10/03/91
   78                       3-OCT-1991  Galileo Update #2 - 10/03/91
   79                       3-OCT-1991  Daily News in Brief 10/1/91
   80                       3-OCT-1991  HQ 91-161/Key Appointments (resent)
   81                       3-OCT-1991  HQ 91-159/X-29 RESEARCH
   82                       3-OCT-1991  Compton GRO Monthly Status Report
   83                       4-OCT-1991  Ulysses Update - 10/04/91
   84                       4-OCT-1991  Ulysses Update - 09/30/91
   85                       4-OCT-1991  Galileo Update - 10/04/91
   86                       4-OCT-1991  HQ 91-163/LIFE SCIENCES
   87                       4-OCT-1991  Magellan Update - 10/04/91

From:       [e-mail] (Bob Deen) 16-SEP-1991 17:24:50.95
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan CDROMS

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Date:    Mon, 16 Sep 1991 15:20:33 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan CDROMS
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.general:40
From: [e-mail] (Ron Baalke)
Subject:Magellan CDROMS
Date: 12 SEP 91 21:40:05
Message-ID:<[e-mail]>

                          ======================
                             Magellan CD-ROMS
                            September 12, 1991
                          ======================

     Five new Magellan CD-ROMs can now be obtained from the National Space
Science Data Center (NSSDC) at the Goddard Space Flight Center.  These five
along with the CD-ROM released earlier this year bring the Magellan CD-ROM
total to 6.  The "nominal" charge is $20 for the first CD-ROM, and $6 for any
additional disks in an order.  However, NSSDC waives this charge for bona fide
research users, teachers who indicate that they would be unable to use the
material if they were required to pay, government laboratories, etc.
Researchers funded by NASA's Solar System Exploration Division can also obtain
the disks through the Planetary Data System at JPL.

     NSSDC also provides the following software to display the images:

        o IMDISP       (IBM PC)
        o Browser      (Macintosh)
        o Pixel Pusher (Macintosh)
        o True Color   (Macintosh)

     NSSDC's address is:

    National Space Science Date Center
    Goddard Space Flight Center
    Greenbelt, Maryland 20771
    Tel: [phone]

        Email address:   [e-mail]

     You can also reach NSSDC by logging on to their computer.  To log onto the
NSSDC computer, telnet to NSSDC.GSFC.NASA.GOV [128.183.36.25] and give the
username "NSSDC".  You will then be connected to a menu system which allows
you to use the "Master Directory".  You can also leave questions and orders for
the NSSDC staff.  If this is the first time you have used the NSSDC "NODIS"
system, it will ask you for information (name, address, ...) to keep a database
of NSSDC users.

     Peter Yee at the Ames Research Center will also be making the new Magellan
CD-ROMs available via anonymous ftp at AMES.ARC.NASA.GOV [128.102.18.3].  The
Ames site has two CD-ROM drives and they are accessible through the
pub/SPACE/CDROM and pub/SPACE/CDROM2 directories.  The CD-ROMs will be rotated
on a weekly basis.

     The Magellan project is continuing to produce CD-ROMs at the rate of 8 per
month.  The current 5 CD-ROMs cover the first 21 days of mapping, or roughly
1/10 of the planet.  In October, the project will release disks through the
first 4 months, or roughly 1/2 the planet.  The full planet will be available
by February in a set of about 50 disks.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:25:29.83
To:         [e-mail], [e-mail]
CC:
Subj:    Anti-Greenhouse Effect Discovered on Titan

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Anti-Greenhouse Effect Discovered on Titan
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X-VMS-News: mipl5 jpl.spacecraft:153
From: [e-mail] (Ron Baalke)
Subject:Anti-Greenhouse Effect Discovered on Titan
Date: 6 SEP 91 20:41:41
Message-ID:<[e-mail]>

Paula Cleggett-Haleim
Headquarters, Washington, D.C.                      September 6, 1991
(Phone:  [phone])

Diane Stanley
Ames Research Center, Mountain View, Calif.
(Phone:  [phone])


RELEASE:  91-143

SCIENTISTS DISCOVER ANTI-GREENHOUSE EFFECT ON TITAN

     An anti-greenhouse effect on a solar system body has been described for
the  first time by scientists from NASA's Ames Research Center, Mountain View,
Calif., and the Paris Observatory.

     Drs. Christopher McKay and James Pollack of Ames, with France's Dr. Regis
Courtin, also describe the temperature structure and energy balance on Titan,
Saturn's largest moon.  Using data from the Voyager 1 spacecraft and
computational models, the scientists determined the source, or controls, of the
temperature profile.

     Their results are in the current issue of Science magazine.  They say the
temperature model of the organically-rich, thick atmosphere on Titan may help
in basic studies of the greenhouse effect on Earth.

     Their study provides the first description of a greenhouse and anti-
greenhouse effect existing simultaneously, in tension with each other.
Greenhouse effects on Venus and Earth have been discussed extensively.

     The study results define an anti-greenhouse effect that reduces Titan's
surface temperature by 16 degrees Fahrenheit.  The effect is produced by a
thick, organic haze in Titan's upper atmosphere that absorbs solar light, but
transmits reflected infrared radiation.

     Titan's greenhouse effect, they report, increases the surface temperature
by 38 degrees Fahrenheit.  The effect is caused by atmospheric gases reflecting
infrared energy back to Titan's surface.  The surface temperature of Titan,
minus 290 degrees Fahrenheit, therefore is 22 degrees warmer than it would
be without atmospheric effects.

     Between the size of Earth's moon and Mars, Titan is the only satellite in
the solar system with a thick atmosphere.  It's atmospheric pressure is similar
to Earth's - only one and one half times greater - and it has the same primary
atmospheric ingredient - nitrogen.  Also, the major greenhouse gas on each
body (water on Earth and methane on Titan) condenses on its surface.

     Titan's greenhouse effect depends on a link between hydrogen and methane,
like the Earth's greenhouse effect depends on carbon dioxide and water vapor,
says McKay.

     As humans increase carbon dioxide on Earth and it gets warmer, more  water
goes into the atmosphere.  Water vapor on Earth is a more potent greenhouse
gas than carbon dioxide, McKay said.

     Similarly, on Titan, hydrogen acts like carbon dioxide, he said.  It does
not condense.  If you increase it, it will pull the methane out of suspected
methane-rich oceans or lakes.  On Titan, the condensed surface liquid, methane
(like water on Earth) then becomes the most potent greenhouse gas.

     McKay, Pollack and Courtin were modelling the greenhouse effect on Titan
when they realized that they needed a counterpoint.  They then isolated the
temperature dynamic of the upper atmospheric haze.

     Earth has no comparable mechanism.  However, stratospheric ozone acts, in
a small way, as a highly selective anti-greenhouse shield.  It absorbs only a
specific region of solar light, ultraviolet, and lets infrared radiation pass
through on its way out.

     Debris from volcanic explosions or extraterrestrial impacts also
temporarily scatters solar light and acts as an anti-greenhouse agent.  But the
gases (mostly sulfur dioxide) eventually produced by these events are greenhouse
agents, letting in solar light and reflecting infrared radiation back to space.

     As carbon dioxide and water vapor increase in the Earth's atmosphere,
more clouds will form.  Scientists want to know how they will warm or cool the
planet.

     Just as Titan's greenhouse/anti-greenhouse effect is a good comparison
model for Earth, studying the formation of clouds on Titan and their effect on
the greenhouse balance may help answer these questions, McKay suggested.

- end -
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:26:01.83
To:         [e-mail]
CC:
Subj:    Magellan Update - 09/06/91

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Date:    Mon, 16 Sep 1991 15:21:41 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/06/91
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X-VMS-News: mipl5 jpl.spacecraft:154
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/06/91
Date: 6 SEP 91 20:35:47
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                       MAGELLAN STATUS REPORT
                         September 6, 1991

     Magellan spacecraft performance continues to be excellent.  Only one star
was missed during yesterday's starcals (star calibrations).

     All spacecraft temperatures have stabilized in the acceptable range.  The
transmitter peaks at 48 degrees C and the DMS-B (Data Management Subsystem)
tape recorder head reaches 32.9 degrees C.

     Yesterday, spacecraft controllers sent up the M1249 command sequence with
its associated radar control parameter and mapping quaternion files.

     The new 2-week command sequence will continue the two 20 minute cooling
periods in each orbit, shortening the radar mapping swaths to about 65% of
their normal length.

     Mapping begins at about 5 degrees north latitude and extends to the South
Pole.  One of the principal features being imaged right looking is Artemis
Chasma in the south central part of Aphrodite.

      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:26:46.73
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/09/91

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Date:    Mon, 16 Sep 1991 15:22:04 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/09/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:155
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/09/91
Date: 9 SEP 91 18:32:43
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                          GALILEO STATUS REPORT
                            September 9, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     On Saturday, September 7, the DMSMRO (Data Management Subsystem Memory
Readout) activity to return the optical navigation image was initiated.

     Today, another of the periodically planned RPM (Retro Propulsion Module)
10-Newton thruster  maintenance activity is scheduled.  Additionally, the
command loss timer will be reset.

     Tomorrow, continued DMSMRO of the optical navigation image is scheduled
and additional MROs are scheduled for the DDS (Dust Detector), MAG
(Magnetometer), and EUV (Extreme Ultraviolet Spectrometer) instruments.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:27:18.91
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/09/91

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:26:15.30
Date:    Mon, 16 Sep 1991 15:22:31 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/09/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:156
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/09/91
Date: 9 SEP 91 23:28:16
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                         MAGELLAN STATUS REPORT
                           September 9, 1991

     Magellan spacecraft performance continues to be excellent.  Two stars were
missed during the first orbits of the new sequence on Friday during the day
which was caused by the several changes in the new sequence including new
star pairs.

     All spacecraft temperatures have stabilized in the acceptable range.  The
transmitter peaks at 48 degrees C and the DMS-B (Data Management Subsystem-B)
tape recorder head reaches 32.9 degrees C.

     Today, spacecraft controllers will send up a new Radar Control Parameter
File.  The on-board command sequence will continue the two 20-minute cooling
periods in each orbit, shortening the radar mapping swaths to about 65% of
their normal length.

     Mapping begins at about 5 degrees north latitude and extends to the South
Pole.  The spacecraft continues to image right looking Artemis Chasma which is
in the south central part of Aphrodite.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:27:47.26
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/10/91

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Date:    Mon, 16 Sep 1991 15:22:54 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/10/91
To:      [e-mail], [e-mail]
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X-VMS-News: mipl5 jpl.spacecraft:157
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/10/91
Date: 10 SEP 91 20:58:03
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                          MAGELLAN STATUS REPORT
                            September 10, 1991

     Magellan spacecraft performance continues to be excellent.  All STARCALS
(star calibrations) were successful.

     All spacecraft temperatures are holding in the acceptable range.  The
transmitter peaks at 48 degrees C and the DMS-B (Data Management Subsystem-B)
tape recorder head reaches 34 degrees C.

     Today, spacecraft controllers will send up a commands to change the
contents of the Delayed Engineering Data telemetry.  The on-board command
sequence will continue the two 20-minute cooling periods in each orbit,
shortening the radar mapping swaths to about 65% of their normal length.

     Mapping begins at about 5 degrees north latitude and extends to the South
Pole.  The spacecraft continues to image right looking Artemis Chasma which is
in the south central part of Aphrodite.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:29:06.43
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/10/91

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Date:    Mon, 16 Sep 1991 15:23:15 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/10/91
To:      [e-mail]
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X-VMS-News: mipl5 jpl.spacecraft:158
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/10/91
Date: 10 SEP 91 23:58:23
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                          GALILEO STATUS REPORT
                           September 10, 1991

     The Galileo spacecraft is operating normally in the all-spin mode and
transmitting coded telemetry at 40 bps.

     Yesterday, the spacecraft completed another 10-Newton thruster "flushing"
maintenance activity and continued the DMS (Data Management Subsystem) MRO
(Memory Readout) playback activity of the first GASPRA-related optical
navigation image.

     Today, the DMS MRO playback activity will continue and MROs are planned
for the DDS (Dust Detector), MAG (Magnetometer) and EUV (Extreme Ultraviolet)
instruments.

     Tomorrow, DMS MRO activity will continue.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:36:25.42
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Discoveries (article)

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Date:    Mon, 16 Sep 1991 15:32:24 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Discoveries (article)
To:      [e-mail], [e-mail]
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X-VMS-News: mipl5 jpl.spacecraft:159
From: [e-mail] (Ron Baalke)
Subject:Magellan Discoveries (article)
Date: 11 SEP 91 16:47:38
Message-ID:<[e-mail]>

Science News
September 7, 1991

Record-Breaking Revelations from Venus
By R. Cowen

     Two record-breaking discoveries - unveiled in a single day - offer
compelling evidence of Venus' geologic activity, both past and present.

     On the morning of August 30, researchers announced that radar images of
Venus revealed the solar system's longest channel, an ancient trough longer
than the Nile River.  Hours later, at a hastily called press conference, the
same team announced an even more dramatic finding: other images showed that
Venus suffered a massive landslide sometime in the past several months,
providing the first confirmation of current geologic activity on a planet
other than Earth.

     Jeffery Plaut of the Jet Propulsion Laboratory in Pasadena, Calif., says
he discovered the landslide while comparing two radar images of Aphrodite
Terra, an equatorial plateau.  The Magellan spacecraft took one of the images
last November and the other in July during its second trip around Venus.
Placed side by side under a stereoscope, the images should have merged to
form a three-dimensional view of a cliff and steeply sloping valley, with
bright areas representing the most jagged regions.  But a bright patch at
the base of the valley, clearly visible in the July image, did not appear
in the earlier picture.

     Plaut interprets the patch as a massive heap of rocks, roughly 1 mile
wide and 4 miles long, that fell from the cliff at some point during the
eight-month interim.  A third, more recent Magellan image also shows the
feature, he says.

     Plaut suggest that the landslide may have been triggered by an underground
disturbance, such as a "Venusquake", or by a fracture originating at the
planet's surface.  It probably released as much energy as a magnitude 5
earthquake, he calculates.  Though exciting, the discovery that Venus continues
to experience geologic upheavals isn't surprising, he adds, since previous
evidence suggest the planet has undergone many volcanic eruptions during the
past several million years.  Plaut says he expects Magellan to capture other
such events as it continues to map Venus.

     Magellan's other radar revelation emerged in images taken in August.
The unusually long channel, stretching across the plains of Venus for 4,200
miles, begins just above the equatorial highlands in a region west of Atla
Regio and follows a smoothly curving, northward course toward a large basin
called Atalanta Palnitia.  Soviet spacecraft spied sections of the trough
in 1984, but only with Magellan's higher resolution could researchers gauge
its full extent, says project scientist Steve Saunders of the Jet Propulsion
Laboratory.

     Magellan had previously mapped similiar, shorter channels on the Venusian
plains.  Many of these terminate at lava flows, suggesting they were carved
out by molten lava from a volcanic eruption, Saunders says.  But it's
difficult to understand how a lava flow could have remained fluid long enough
to create a channel as extensive as the newly discovered one, he adds.

     In a rugged terrain of ridges and impact craters, the remarkably uniform
width of this trough - which averages 1.1 miles across - poses another puzzle,
says Saunders.  He speculates that the region may have been far smoother
when the lengthy channel originally formed.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:37:37.79
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/11/91

Return-Path: <[e-mail]>
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Date:    Mon, 16 Sep 1991 15:33:40 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/11/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:160
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/11/91
Date: 11 SEP 91 17:59:22
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                            MAGELLAN STATUS REPORT
                              September 11, 1991

     The Magellan spacecraft is performing nominally.  There was only one
missed star during yesterday's starcals (star calibrations) and desats
(desaturations of the reaction wheels).  Attitude updates range from .006
to .011 degree.

     Yesterday, spacecraft controllers uplinked a change to the Delayed
Engineering Data to provide more visibility into temperatures.  They are
also planning to change to solar panel offpoint to provide some shading of
Bay 5.

     Magellan is presently mapping Venus in a right-look mode.  Due to the two
20-minute cooling periods in each orbit, the image swaths begin at about 5
degrees north latitude and extend to the South Pole.

     Magellan has recently mapped a 50-orbit area of Cycle 1 which was
partially unprocessable due to the deterioration of the on-board tape recorder
"A".  The new image area recovered puts us just over the 90% mark in our
coverage of Venus.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:42:28.88
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/11/91

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Date:    Mon, 16 Sep 1991 15:38:24 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/11/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:161
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/11/91
Date: 11 SEP 91 20:31:36
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                            GALILEO STATUS REPORT
                             September 11, 1991

     The Galileo spacecraft is operating normally in the all-spin mode and
transmitting coded telemetry at 40 bps.

     Yesterday, the DMS (Data Management Subsystem) MRO (Memory Readout)
activity continued.  The first segment, approximately 118 lines, of optical
navigation image #1 was delivered to the Image Processing Laboratory and later
to the Navigation Team.  Data looks good.

     Yesterday, science MROs of the DDS (Dust Detector), MAG (Magnetometer)
and EUV (Extreme Ultraviolet Spectrometer) instruments were completed.

     Tomorrow, the DMS MRO of Optical Navigation Image #1 will continue.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:43:00.71
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/12/91

Return-Path: <[e-mail]>
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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/12/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:162
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/12/91
Date: 12 SEP 91 17:33:14
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109.  TELEPHONE [phone]


                     GALILEO MISSION STATUS
                       September 12, 1991

     The Galileo spacecraft is almost 197 million miles from
Earth, and more than 194 million miles from the Sun.  Its speed
in orbit is 38,132 miles per hour.

     The spacecraft is operating normally in the dual-spin mode,
rotating at 3.15 rpm.  It is transmitting coded telemetry at 40
bits per second; one-way communication time is currently 17
minutes 37 seconds.

     On Tuesday the first segment of the first optical navigation
image, recorded September 6, was received, as were scientific
data from the dust detector, magnetometer, and extreme
ultraviolet instrument.  Today the spacecraft is transmitting
another segment of the optical navigation image.

                              #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:43:26.58
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/12/91

Return-Path: <[e-mail]>
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Date:    Mon, 16 Sep 1991 15:39:08 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/12/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:163
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/12/91
Date: 12 SEP 91 20:18:26
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                        MAGELLAN STATUS REPORT
                          September 12, 1991

     The Magellan spacecraft is performing nominally.  All starcals (star
calibrations) and desats (desaturations) yesterday were successful.

     Spacecraft temperatures remain in the acceptable range.  The DMS-B (Data
Management Subsystem-B) tape recorder head now reaches 35.7 degrees C, but most
other temperatures have stabilized within the planning limits.

     There were no commands sent to the spacecraft yesterday, but later today
controllers will send up a routine update of the command sequence.

     Magellan is mid-way through a 2-week command sequence which uses two 20
minute cooling periods in each orbit.  This shortens the radar mapping swaths
to about 65% of their normal length.  Mapping begins at about 5 degrees north
latitude and extends to the South Pole.

     Magellan has now completed 2552 mapping orbits, 876 since the start of
Cycle 2.  This Saturday will mark the halfway point in Cycle 2.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:44:26.10
To:         [e-mail]
CC:
Subj:    Ulysses Update - 09/13/91

Return-Path: <[e-mail]>
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Date:    Mon, 16 Sep 1991 15:39:48 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Ulysses Update - 09/13/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:164
From: [e-mail] (Ron Baalke)
Subject:Ulysses Update - 09/13/91
Date: 13 SEP 91 17:02:28
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. TELEPHONE [phone]

                     ULYSSES MISSION STATUS
                       September 13, 1991

     The Ulysses spacecraft is in excellent condition and is
performing normally as it begins the final approach to Jupiter.

     Ground controllers are performing routine Earth-pointing
maneuvers every six days.  The next set of maneuvers are
scheduled for Sunday, Sept. 15 and Monday, Sept. 23.

     Science experiments were returned to routine operations
following the solar conjunction period, which concluded Thursday,
Sept. 5.  Data recovery has increased to approximately 75 percent
since tape-recorder operations were resumed and the Solar Corona
Experiment was terminated. The 70-meter ground antennas will
provide coverage of the spacecraft through Sunday, Sept. 15,
after which time controllers will return to use of the 34-meter
antennas.

     Today Ulysses is approximately 767 million kilometers (476
million miles) from Earth, traveling at a heliocentric velocity
of about 64,800 kilometers per hour (41,000 miles per hour).  The
spacecraft has about a million miles to travel before reaching
Jupiter in early February 1992.

                            #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:48:39.87
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/13/91

Return-Path: <[e-mail]>
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Date:    Mon, 16 Sep 1991 15:44:43 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/13/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl3 jpl.spacecraft:166
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/13/91
Date: 13 SEP 91 19:33:36
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                           GALILEO STATUS REPORT
                             September 13, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Today, the continued playback of the first of four planned optical
navigation images was performed via the tape recorder memory readout (DMS MRO).
Approximately 35% of the image has been received.

      Over the weekend, the DMS MRO will continue; no other spacecraft
activities are planned.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:49:07.84
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/13/91

Return-Path: <[e-mail]>
Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:48:46.83
Date:    Mon, 16 Sep 1991 15:45:12 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/13/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl3 jpl.spacecraft:167
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/13/91
Date: 13 SEP 91 19:34:57
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                             MAGELLAN STATUS REPORT
                               September 13, 1991

     Magellan spacecraft performance continues to be excellent.  All starcals
(star calibrations) and desats (desaturations) yesterday were successful.

     All spacecraft temperatures remain in the acceptable range.  The DMS-B
(Data Management Subsystem-B) tape recorder head has dropped slightly to
35 degrees C.

     Today, spacecraft controllers are planning to reset the Solar Array Drive
Motor commanded position.  The position as indicated by the potentiometers is
3x off from the position referenced in the on-board computer.

     Orbit #3060, on Saturday, September 14th marks the halfway point in our
second cycle around Venus.  Coincidentally, Sunday is the anniversary of when
we started mapping operations.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 16-SEP-1991 17:49:57.58
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/16/91

Return-Path: <[e-mail]>
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Date:    Mon, 16 Sep 1991 15:45:58 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/16/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl3 jpl.spacecraft:168
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/16/91
Date: 16 SEP 91 21:51:44
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                          MAGELLAN STATUS REPORT
                            September 16, 1991

     The Magellan spacecraft is performing nominally.  On Friday, the
spacecraft experienced another spurious shutoff of the high power transmitter,
TWTA-A, during a mapping pass.  The fault protection worked perfectly, and no
data was lost.

     Also on Friday, spacecraft controllers reset the Solar Array Drive Motor
commanded position to adjust for slippage in the position as indicated by the
potentiometers relative to the position referenced in the on-board computer.
They also changed the Sun Loss Timer to 48 minutes.

     All spacecraft temperatures remain in the acceptable range.  The Bay 7
temperature has risen about 2 degrees C, but this was expected.

     Orbit #3060, on Saturday, September 14th marked the halfway point in our
second cycle around Venus.  Each cycle is 243 earth days, the time it takes
Venus to turn once on its axis.  Cycle 2 will end on January 14, 1992.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 16-SEP-1991 18:06:52.84
To:         [e-mail], [e-mail]
CC:
Subj:    Re: Is Venus landslide recanted?

Return-Path: <[e-mail]>
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Date:    Mon, 16 Sep 1991 16:02:57 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Re: Is Venus landslide recanted?
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl3 sci.astro:11419
From: [e-mail] (Ron Baalke)
Subject:Re: Is Venus landslide recanted?
Date: 11 SEP 91 18:57:45
Message-ID:<[e-mail]>

In article <[e-mail]>, [e-mail] (Karolen I. Paularena) writes...
>I heard yesterday that radar processing problems (?) caused the bright
>patch which Plaut interpreted as a landslide, and that he had
>withdrawn his identification.  So I was surprised to read Baalke's
>posting (not a flame!).  Does anyone know from direct evidence
>whether Plaut did or did not withdraw his interpretation?

Since the announcment of the landslide discovery, a second interpretation
of the two images has come up.  Since the two images were taken at different
look angles (45 degrees from vertical versus 24 degrees), it is possible that
the differences between the two images can be accounted for by what is called
a layover effect, and if this is true, then there was no landslide.   The
scientists are split 50-50 on this.  The only way to know for sure, is to
take another image of the same area with the exact parameters used with the
first image, and then compare the two.  Magellan will pass over this area
again in March 1992.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Good judgement comes from
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | experience.  Experience
 |_____|/  |_|/       |_____|/                     | comes from bad judgement.



From:       [e-mail] (Bob Deen) 17-SEP-1991 11:09:15.14
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/16/91

Return-Path: <[e-mail]>
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Date:    Tue, 17 Sep 1991 9:04:26 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/16/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:169
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/16/91
Date: 17 SEP 91 00:12:33
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                               GALILEO STATUS REPORT
                                September 16, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Today, the tape recorder playback activity (DMS MRO) is scheduled to
continue.  This activity is sending back the GASPRA optical navigation image
taken on September 6; about 44 percent of the image will be returned by end of
day today.

     In addition to the image playback, a USO ultra stable oscillator
frequency test will be performed.

     Tomorrow, no spacecraft activities are scheduled.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 17-SEP-1991 11:11:02.46
To:         [e-mail]
CC:
Subj:    HQ RELEASE 91-147/NASA, USA TODAY, DISCOVERY CHANNELL...

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Date:    Tue, 17 Sep 1991 9:06:53 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ RELEASE 91-147/NASA, USA TODAY, DISCOVERY CHANNELL...
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:238
From: [e-mail] (HQ NEWSROOM)
Subject:HQ RELEASE 91-147/NASA, USA TODAY, DISCOVERY CHANNELL...
Date: Thu, 12 Sep 91 13:28 PDT
Message-ID:<EJJB-2968-8333@nasamail>

Terri Sindelar
Headquarters, Washington, D.C.
(Phone:  [phone])          September 12, 1991

RELEASE:  91-147

NASA, USA TODAY, DISCOVERY CHANNEL LAUNCH
EDUCATION PROGRAM


    USA Today, in cooperation with NASA and the
National Association of Elementary School Principals,
today launched RVisions of ExplorationS -- the first
multi-media educational program designed to bring the
spirit of exploration into the classroom in 1992, the
International Space Year.  The Discovery Channel, a
television partner, today debuted the first in a series
of documentaries corresponding to Visions of
Explorations.

    The Visions of Exploration curriculum motivates
elementary and middle school students to learn about the
explorers of the past and present in order to discover
qualities within themselves to become the explorers of
the future.  The content integrates science, mathematics
and social studies with creative expression from
language arts, fine arts and career education.

    Visions of Exploration includes four instructional
components which bring exploration to life.  These
include nine curriculum guides for teachers, ExplorerUs
Journal for students, daily teaching plans and classroom
sets of USA Today.

    The Discovery ChannelUs, Assignment Discovery,
documentaries correspond to Visions of ExplorationUs
five major themes:  What is Exploration; Exploration:
The Past; Exploration: The Present; Exploration: The
Future; and Exploration: The Explorer in Me.  These
documentaries are commercial-free and may be taped by
teachers for use in the classroom for 1 year from the
date of taping.

    The first episode, RHelen Keller in Her Story,S
debuted today on The Discovery Channel from 9-10 a.m.
Eastern time.  This hour-long documentary relates to
Theme A, What is Exploration.  This is a simple yet
moving film in which Helen Keller evokes the personal
drama of her story of courage, faith, perseverance, hope
-- and exploration.


                         -  more  -

                          -  2  -


    Barbara Morgan represents the NASA Educational
Affairs Division as the Teacher in Space Designee and
the national education community as a third-grade
teacher.  She will incorporate Visions of Exploration
into her classroom curriculum this year.

    The curriculum was field-tested in the fall of 1990
in five major school districts with approximately 200
teachers and 6,000 students participating in the pilot.

    A think tank of prominent scientists, astronauts
and educators provided focus, while a national education
advisory team provided direction during the programUs
development, design and implementation phases.  The
advisory team included members from the National
Association of Elementary School Principals, the
National Science Teachers Association, the International
Reading Association, the National Council for the Social
Studies, the National Council of Teachers of
Mathematics, the National Geographic Society, 4-H Youth
Development and the Mathematical Science Education
Board.

    For further information contact Steven Anderson,
USA Today, [phone] or Vicki Stearn, The Discovery
Channel, [phone].



                         -  end  -



From:       [e-mail] (Bob Deen) 17-SEP-1991 11:16:57.06
To:         [e-mail]
CC:
Subj:    Test Message

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Date:    Tue, 17 Sep 1991 9:12:04 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Test Message
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:241
From: [e-mail] (J E. RILEY)
Subject:Test Message
Date: Mon, 16 Sep 91 11:11 PDT
Message-ID:<TJJB-2969-4138@nasamail>

    MCC STATUS REPORT #9
    FLIGHT DAY FOUR
    5:00 A.M. CDT


The STS-48 crew completed 11 hours of experiments in fluid and
structural dynamics.  Mission Specialists Mark Brown, Jim Buchli
and Sam Gemar first set up a series of Lexan cylinders--two
containing silicon oil and two containing water--attached to a
shaker device mounted in Discovery's mid-deck.  A computer sent
precisely controlled forces to the shaker device, then measured
the fluid's movements.  Experiment investigators hope to learn
more about the impact of moving liquids, such as fuel, in future
spacecraft.

The astronauts then set up a series of four different models of
truss structure being studied for Space Station Freedom.  The
computer also sent programmed vibrations to the truss structure
and recorded responses.  Engineers expect to gather additional
knowledge to help develop more sophisticated computer models for
accurately predicting the performance of future large space
structures.

The Upper Atmosphere Research Satellite controllers reported
about 1 a.m. CDT that they were able to send computer commands to
the observatory through the "A" receiver which had not accepted a
transmission through the Tracking and Data Relay Satellite system
since shortly before the observatory was deployed from the
Shuttle late Saturday night.  Payload controllers had been
communicating with the observatory through the "B" receiver, a
backup system.  Engineers at the Goddard Payload Operations
Control Center now believe both receivers are working properly.
Because Discovery carried the UARS to an altitude of 308 nautical
miles, the first of four planned altitude-raising burns is not
needed. The first burn, set for early Monday morning, will not be
performed.  The other three burns are scheduled for Tuesday,
Wednesday and Thursday.

Discovery continues to perform well.  No problems are being
worked this morning. The apogee, or high point, of Discovery's
orbit is 308 nautical miles and the perigee, or low point, is 303
nautical miles.

The astronaut crew will go to sleep at 8:11 a.m. CDT and will
wake up at 4:11 p.m. CDT to begin their last full day in space.
STS-48 landing is scheduled for 1:09 a.m. CDT on Wednesday,
September 18, at Kennedy Space Center, Florida.

    # # #



From:       [e-mail] (Bob Deen) 17-SEP-1991 11:21:57.29
To:         [e-mail]
CC:
Subj:    HQ 91-148/NEW OFFICE ANNOUNCED

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ 91-148/NEW OFFICE ANNOUNCED
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X-VMS-News: mipl5 nasa.nasamail.p:245
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-148/NEW OFFICE ANNOUNCED
Date: Fri, 13 Sep 91 07:02 PDT
Message-ID:<BJJB-2969-1062@nasamail>

Mark Hess
Headquarters, Washington, D.C.                  September 13, 1991
(Phone:  [phone])


RELEASE:    91-148

NEW OFFICE OF SPACE FLIGHT DEVELOPMENT ANNOUNCED

    NASA Administrator Richard H. Truly today announced plans to
create a new Office of Space Flight Development.  The new
development organization will have responsibility for Space
Station Freedom development; large propulsion systems development,
including the new National Launch System and its new space
transportation main engine; other large space flight developments;
and the advanced transportation systems program planning function.

    "As a result of this organizational change, NASA's existing
Office of Space Flight will be able to devote undivided attention
to the safety and efficiency of space flight operation," Truly
said.  The office will retain responsibility for the Space Shuttle
program, Space Station Freedom/Spacelab operations and
utilization, expendable launch vehicle operations and upper
stages.  This office also will be charged with the responsibility
to establish operational requirements for new capability
development projects undertaken by the new Office of Space Flight
Development.  Institutional reporting of NASA Field Centers will
remain unchanged.

    Detailed definition of the new development organization and
appointment of the Associate Administrator will be completed in
the coming weeks.

    The decision to create the new office was shared with former
Chairman Norman Augustine and the individuals who served on the
Advisory Committee on the Future of the U.S. Space Program,
gathered at the Kennedy Space Center, Fla.

- end -




From:       [e-mail] (Bob Deen) 17-SEP-1991 11:27:53.46
To:         [e-mail]
CC:
Subj:    NEWS RELEASE/KSC LANDINGS

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Date:    Tue, 17 Sep 1991 9:23:38 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: NEWS RELEASE/KSC LANDINGS
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:246
From: [e-mail] (DICK YOUNG)
Subject:NEWS RELEASE/KSC LANDINGS
Date: Mon, 16 Sep 91 14:51 PDT
Message-ID:<NJJB-2969-4726@nasamail>

          Bruce Buckingham
          407/867-2468                                      Sept. 16, 1991

          KSC RELEASE NO. 113 - 91

          DISCOVERY SCHEDULED TO LAND AT KSC


               The orbiter Discovery is scheduled to make the first planned
          nighttime landing at Kennedy Space Center at the conclusion of
          its current STS-48 mission, which began Sept. 12.

               Landing of Discovery at KSC's Shuttle Landing Facility (SLF)
          is slated for 2:06 a.m. Eastern Time, Wednesday, Sept. 18, on
          orbit 80.

               During descent, Discovery will enter Florida airspace north
          of Jacksonville, Fla. over the Florida/Georgia border town of
          Folkston, Ga. Discovery will then follow Florida's east coast to
          land at KSC.

               The orbiter will pass near Jacksonville about 8 minutes, 42
          seconds before touchdown, at an altitude of about 119,000 feet
          and traveling at a speed of Mach 4.7. The orbiter will then pass
          over St. Augustine, Daytona Beach and Titusville before landing
          at KSC.

               If there is a landing delay during the first opportunity on
          Wednesday, a second KSC landing opportunity occurs at 3:38 a.m.
          Wednesday. Additional landing opportunities at KSC are also
          available on Thursday and Friday, at 2:06 a.m. and 2:01 a.m.
          respectively.

               This mission marks only the second time since January 1986
          that NASA managers determined normal end-of-mission (EOM) Shuttle
          landings could be scheduled for KSC. It marks the first nighttime
          EOM landing at KSC's Shuttle Landing Facility.

               The SLF was built in 1975. It is 300 feet wide and 15,000
          feet long with 1,000 foot overruns at each end. The strip runs
          northwest to southeast. It is located about 3 miles northwest of
          the Vehicle Assembly Building.



                                     -- more --







                                       -- 2 --


               Prior to last month's landing of the Space Shuttle Atlantis
          at KSC, Edwards Air Force Base, Ca. had been listed as the prime
          landing site for Shuttle orbiters since the Challenger accident.

               The up-coming landing of Discovery, if weather permits, will
          be the ninth landing at KSC in the 10 year history of Space
          Shuttle flight. Three landings have occurred at KSC since return-
          to-flight in Sept. 1988. The first two were originally scheduled
          for Edwards Air Force Base, but were diverted to KSC due to poor
          weather conditions at Edwards. The third landing, which occurred
          last month, was the first planned end-of-mission landing since
          Discovery touched down here on April 19, 1985.

               Previous landings at KSC were:

               41-B - Challenger, Feb. 11, 1984

               41-G - Challenger, Oct. 13, 1984

               51-A - Discovery, Nov. 16, 1984

               51-C - Discovery, Jan. 27, 1985

               51-D - Discovery, April 19, 1985

               STS-38 - Atlantis, Nov. 20, 1990

               STS-39 - Discovery, May 6, 1991

               STS-43 -  Atlantis, Aug. 11, 1991

               General weather restrictions for a KSC landing are specified
          in part as:

          *    Surface winds must be less than 20 knots in any direction,
          and less than 12 knots for crosswinds;

          *    The ceiling must be greater than 10,000 feet. For scattered
          clouds below 10,000 feet, cloud cover must be observed to be less
          than 20 percent at the deorbit burn go/no go decision time;

          *    Visibility must be seven miles or greater;

          *    There can be no precipitation at the surface or aloft in the
          proximity of the orbiter;

          *    Thunderstorms, rain or the potential for lightning cannot be
          within 30 nautical miles of the landing site;

          *    Vertical cloud clearance at the 30 nautical mile range, must
          be greater than 2 nautical miles.


                                     -- more --









                                       -- 3 --

               Once the orbiter is on the ground, safing operations will
          commence and the flight crew will prepare the vehicle for post-
          landing operations. For this mission and all following missions,
          a new transport vehicle will be used to assist the crew, allowing
          them to egress the vehicle and doff their launch and re-entry
          suits easier and quicker. This vehicle, called the Crew Transport
          Vehicle, or CTV, was purchased from Continental Airlines at
          Denver for use at KSC. A similar CTV was used to assist crew
          egress at the conclusion of mission STS-40 which landed at
          Edwards Air Force Base on June 14, 1991.

               The CTV and other KSC landing convoy operations have been in
          an "on-call" status since the launch of Discovery September 12.
          The primary functions of the Space Shuttle recovery convoy are to
          provide immediate service to the orbiter after landing, prepare
          the orbiter for towing to the Orbiter Processing Facility and
          assist crew egress.

               Convoy vehicles are stationed at the SLF's mid-point. About
          two hours prior to landing, convoy personnel don SCAPE suits, or
          Self Contained Atmospheric Protective Ensemble, and
          communications checks are made.

               A warming up of coolant and purge equipment is conducted and
          nearly two dozen convoy vehicles are positioned to move onto the
          runway as quickly and as safely as possible once the orbiter
          coasts to a stop. When the vehicle is deemed safe of all
          potential explosive hazards and toxic gases, the purge and
          coolant Umbilical Access Vehicles move into position at the rear
          of the orbiter.

               Following purge and coolant operations, flight crew egress
          preparations will begin and the CTV will be moved into position
          at the crew access hatch located on the orbiter's port side.

               Once access to the vehicle is gained, a physician will board
          the shuttle and conduct a brief preliminary examination of the
          astronauts. The crew will then make preparations to leave the
          vehicle.

               Additional preparations to accommodate a nighttime landing
          were made by the KSC convoy team and landing recovery personnel.
          Because the orbiter has no lights of its own, a special bank of
          xenon lights will be stationed near each end of the runway to
          provide illumination of the projected touchdown zone and rollout
          path. Only the xenon lights at the end of the runway upon which
          the orbiter will land will be turned on. Care will be taken not
          to direct these portable, high intensity lights near the orbiter
          as it makes its approach.

               Also, convoy personnel have been directed to take extra
          precaution when traveling in the darkness. Convoy participants
          will tape high-intensity chem-lights to their legs and arms while
          working on the runway. Different colored lights will distinguish
          the personnel. The call-to-stations for all convoy personnel is
          set for 11:45 p.m. on the night of landing.

                                     -- more --







                                       -- 4 --

               About 2 hours, 40 minutes after landing, the orbiter will be
          towed to Orbiter Processing Facility bay 3 for post-flight
          deservicing. This will be the first use of this upgraded
          processing facility for post flight operations. Discovery will
          remain in OPF Bay 3 as preparations begin for its next scheduled
          mission, STS-42, in January 1992.

               Following their departure from the SLF, the crew will be
          taken to their quarters in the O&C, meet with their families,
          undergo a physical examination and depart for the skid strip at
          Cape Canaveral Air Force Station for their flight back to JSC. A
          departure ceremony and photo opportunity is scheduled for about
          11 hours after landing. The exact time will be determined
          following landing.

               In the event a landing at KSC is not feasible and Discovery
          lands at Edwards, an augmented KSC convoy team will be on-site to
          safe the vehicle, disembark the crew and move the orbiter to the
          Mate/Demate Device. The turn around team will be deployed to
          Edwards by charter aircraft on landing day.


                                    #   #   #   #












          NOTICE TO EDITORS: Specific information regarding news media
          departure times for the SLF, news center operational hours and
          photo opportunities are available at the KSC news center.



























From:       [e-mail] (Bob Deen) 17-SEP-1991 19:57:52.55
To:         [e-mail]
CC:
Subj:    MCC STATUS 10 & 11

Return-Path: <[e-mail]>
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Date:    Tue, 17 Sep 1991 17:53:30 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: MCC STATUS 10 & 11
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:254
From: [e-mail] (J E. RILEY)
Subject:MCC STATUS 10 & 11
Date: Mon, 16 Sep 91 23:48 PDT
Message-ID:<GJJB-2969-5181@nasamail>

    MISSION CONTROL STATUS REPORT #10
    4:30 p.m. CDT ---- Mon., Sept. 16, 1991

Today's wake-up music featured Elvis Presley singing "Are You
Lonesome Tonight?" The song was selected because of its phrase
"are you sorry we drifted apart?" in honor of the Space Shuttle
Discovery's increasing separation from its prime payload the
Upper Atmosphere Research Satellite which was deployed Sept. 14.

As of 4:30 p.m. CDT today, Discovery was about 284 nm in front of
UARS and the distance between the two spacecraft was increasing
at a rate of about 12 nm per orbit.

UARS continues to operate smoothly. All major subsystems have
been checked out and instruments are being turned on.

Today's activities onboard Discovery will include a checkout of
orbiter systems used during entry.  This checkout usually is
performed the day before deorbit and includes cycling the
orbiter's aerosurfaces and hydraulic systems, checking switch
throws and speed brake systems.

Following their post-sleep activities, STS-48 crew members will
perform an inflight maintenance task involving the supply water
dump line. Flight controllers believe the supply water dump
nozzle has experienced a small leak that could allow ice to form
at the nozzle's valve. To eliminate any chance of the supply
water dump line from freezing, the crew will perform a purge of
the dump line by forcing air through it, removing any water that
might be in the line and thus preventing any possible freezing in
the line.

Once the line is purged, the crew then will use the flash
evaporator system to dump excess potable supply water from the
orbiter's potable water storage tanks.

Crew members will wrap up work with middeck experiments before
deactivating and stowing most of them. The crew will continue
operation of the Middeck 0-Gravity Dynamics Experiment which
studies mechanical and fluid behavior of components for Space
Station Freedom and other future spacecraft. Crew members today
will work on one portion of the experiment, the Structural Test
Article, in which the vibration characteristics of jointed truss
structures will be studied. Yesterday's operation of the other
portion of the experiment, the Fluid Test Article which studied
the sloshing of fluids in partially filled containers, was
successful.

The crew also will participate in a special event today when they
talk to radio talk show host Larry King on tonight's Larry King
Show. That event is scheduled to begin at a MET of 4/04:21 or
10:32 p.m. CDT on orbit 64.

    # # #





From:       [e-mail] (Bob Deen) 17-SEP-1991 19:58:46.37
To:         [e-mail]
CC:
Subj:    MISSION CONTROL STATUS REPORT #12

Return-Path: <[e-mail]>
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Date:    Tue, 17 Sep 1991 17:54:20 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: MISSION CONTROL STATUS REPORT #12
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:255
From: [e-mail] (J E. RILEY)
Subject:MISSION CONTROL STATUS REPORT #12
Date: Tue, 17 Sep 91 08:01 PDT
Message-ID:<NJJB-2969-5606@nasamail>

    MISSION CONTROL CENTER
    STS-48 Status Report #12

Tuesday, September 17, 1991, 7 a.m. CDT

The STS-48 astronauts wrapped up their last full day in space
this morning.  The crew goes to sleep at 8:11 a.m. CDT and is
scheduled to wake up at 4:11 p.m. CDT to prepare for a Wednesday
landing.

In the final hours of their last work day on orbit, crew members
turned off the Protein Crystal Growth experiment and downlinked
videotape of the experiment samples.  At deactivation, Ken
Reightler reported they saw several crystals growing on the plugs
and syringe tips.  Crystals grown in microgravity form more
perfectly and allow investigators to determine a crystal's
structure.  Investigators say these experiments could lead to new
drugs to combat numerous serious diseases.

The final data gathering on the structural test assemblies of the
Mid-deck 0-Gravity Dynamics Experiment (MODE) was also completed
this morning.  Models of truss structures designed for Space
Station Freedom were assembled in the middeck, then energized by
computer commands with precisely controlled forces.  Strain
gauges and sensors measured the responses of the truss model and
the computer recorded the information for later analysis.
Experiment results should lead to more sophisticated computer
models that more accurately predict the performance of future
large space structures.

Payload managers for the Upper Atmosphere Research Satellite
report the observatory is in good health.  The first in a series
of three orbit-raising burns occurred at 5:35 a.m. CDT. Lasting
for 7 minutes, 44 seconds, and a change in velocity of 5.3 feet
orbit of 305.2 by 310.5 nautical miles.

Discovery continues to perform well while circling the Earth
every 95 minutes at an altitude of 308 nautical miles and an
orbital inclination of 57 degrees.

    # # #




From:       [e-mail] (Bob Deen) 18-SEP-1991 11:01:20.84
To:         [e-mail]
CC:
Subj:    HQ91-149/J.R. THOMPSON RESIGNSdadi

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Date:    Wed, 18 Sep 1991 8:56:12 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ91-149/J.R. THOMPSON RESIGNSdadi
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:258
From: [e-mail] (HQ NEWSROOM)
Subject:HQ91-149/J.R. THOMPSON RESIGNS
Date: Tue, 17 Sep 91 13:57 PDT
Message-ID:<CJJB-2969-6541@nasamail>

Sue Mathis Richard
Headquarters, Washington              September 17, 1991
(Phone:  [phone])

RELEASE:  91-149


NASA DEPUTY ADMINISTRATOR RESIGNS


    NASA Deputy Administrator J.R. Thompson, Jr.
announced today that due to personal circumstances, he
has submitted a letter of resignation to the President
and will leave his current responsibilities effective
November 8, 1991.  Thompson became NASA's Deputy
Administrator on July 6, 1989.

    Thompson said, "I consider the last several years,
serving as NASA's Deputy Administrator, a highlight of
my career with the Agency that spans over 25 years.  I
have tremendous respect for the men and women of NASA
who today lead the world in aeronautics and the
exploration of space.  Their collective achievements are
unmatched anywhere in the world."

    He continued, "It has been a great privilege for me
to serve under the leadership of President Bush, Vice
President Quayle, and NASA Administrator Richard H.
Truly.  Their strong support of AmericaUs civil space
program and vision of the future command the admiration
of all of us."

    Thompson is an internationally recognized
propulsion expert who has managed major space programs
and directed major research and development efforts.
Thompson entered federal service in 1963 at the Marshall
Space Flight Center as a liquid propulsion engineer.  In
1969, as Chief of Man/Systems Integration in the
Astronautics Laboratory, he managed the design, test,
and integration engineering for the man/machine
interface on Skylab.  Later in 1974, Thompson was chosen
to manage the Space Shuttle main engine project.  In
1982, he assumed responsibility for the technical
integrity of engineering involved in all of Marshall's
diverse programs as Associate Director of Engineering.

-more-


-2-

    In 1983, Thompson joined Princeton University's
Plasma Physics Lab, working on fusion energy research.
However, he responded to a call to rejoin NASA in 1986
as the Director of Marshall Space Flight Center to
direct a major effort to return the Space Shuttle to
safe flight following the Challenger accident.

    As Deputy Administrator, Thompson has spearheaded
efforts to improve program management, upgrade
institutional capabilities and aggressively fought for a
balanced civil aeronautics and space program.

    NASA Administrator Truly said, "Our nation owes a
profound measure of gratitude to J.R. Thompson.  His
brilliance, dedication and untiring efforts have been
instrumental to the success of AmericaUs space program
for a generation.  His wise counsel and unflagging
spirit will be sorely missed."

-end-







From:       [e-mail] (Bob Deen) 18-SEP-1991 11:02:40.64
To:         [e-mail]
CC:
Subj:    Mission Control Status - Pre Entry

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Date:    Wed, 18 Sep 1991 8:57:25 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Mission Control Status - Pre Entry
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:259
From: [e-mail] (J E. RILEY)
Subject:Mission Control Status - Pre Entry
Date: Tue, 17 Sep 91 16:23 PDT
Message-ID:<KJJB-2969-6835@nasamail>

Forwarded message:

Posted: Tue, Sep 17, 1991   3:35 PM PDT              Msg: PJJB-2969-6730
From:   SNESBITT
To:     PAOJSC
Subj:   MCC status report 12

MISSION CONTROL STATUS REPORT #12
5:30 p.m. CDT ---- Tuesday, Sept. 17, 1991

STS-48 crew members were awakened at 4:11 p.m. CDT today to
the song "Return to Sender" performed by Elvis Presley in
honor of their expected landing early tomorrow morning.

The crew is expected to perform a four-and-a-half minute
deorbit burn on orbit 79 at a MET of 5/05:44 or 11:55 p.m.
CDT today.  Landing is scheduled to occur on orbit 80 at a
MET of 5/06:55 or 1:06 a.m. Wednesday. The weather forecast
is expected to be favorable for the first night landing at
Kennedy Space Center in Florida in the Space Shuttle program.
Scattered clouds are expected at 25,000 feet and 2,500 feet
with some patchy ground fog.

Reentry ground track will bring Discovery over the upper
Pacific Northwest near Juno, Alaska, crossing the middle of
Canada before starting across the U.S.  above North Dakota.

Crew members this evening will deactivate and stow the
Radiation Monitoring Equipment experiment before beginning
deorbit preparations. The RME was designed to measure and
record ionizing radiation exposure to the crew in the orbiter
cabin and time tag the exposure with mission elapsed times.

Shortly after the crew began their sleep period today about
9:55 a.m., they were awakened when an above normal nitrogen
flow rate of more than five pounds per hour triggered a
master alarm aboard Discovery. Flight controllers believe
that the cabin regulator was near its high flow setting and
when the system switched from its oxygen to its nitrogen
cycle, the pressure may have triggered the regulator to the
high setting which in turn triggered the alarm. Flight
controllers assured the crew that this cycling was normal and
the system would be reset so the alarm would not be triggered
and awaken them again.

There are no orbiter or other system problems which are of
concern in anticipation of tomorrow morning's landing.







From:       [e-mail] (Bob Deen) 18-SEP-1991 11:06:49.38
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/17/91

Return-Path: <[e-mail]>
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Date:    Wed, 18 Sep 1991 9:01:52 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/17/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:170
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/17/91
Date: 17 SEP 91 19:30:24
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                              GALILEO STATUS REPORT
                                September 17, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Today, no spacecraft activity is planned.

     Tomorrow, continued playback of the GASPRA optical navigation image is
scheduled.  Additionally, an imaging instrument (SSI) memory readout is planned
to verify the instrument's health and safety.  An EPD (Energetic Particles
Detector) motor maintenance activity is also planned.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 18-SEP-1991 11:09:24.43
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/17/91

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Date:    Wed, 18 Sep 1991 9:04:19 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/17/91
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From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/17/91
Date: 17 SEP 91 19:32:11
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                          MAGELLAN STATUS REPORT
                            September 17, 1991

     The Magellan spacecraft is performing nominally.

     On Monday, a normal Radar Control Parameter File was sent to the
spacecraft successfully.

     Also on Monday, a command was approved which will provide an increase
sampling of the +X solar array telemetry to facilitate diagnosis of SADM
(Solar Array Drive Mechanism) slip.  This command will be sent to the
spacecraft on Wednesday.

     All spacecraft temperatures remain in the acceptable range.  The Bay 7
temperature which contains CDS (Command Data Subsystem) now peaks at 54.9
degrees C and DMS-B (Data Management Subsystem-B) head temperature peaks at
35 degrees C.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 18-SEP-1991 11:13:25.53
To:         [e-mail]
CC:
Subj:    Ulysses Update - 09/16/91

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Subject: Ulysses Update - 09/16/91
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X-VMS-News: mipl5 jpl.spacecraft:172
From: [e-mail] (Ron Baalke)
Subject:Ulysses Update - 09/16/91
Date: 18 SEP 91 15:32:44
Message-ID:<[e-mail]>

Forwarded from Peter Beech, Ulysses Operations Manager

        SUBJECT:   ULYSSES MISSION OPERATIONS REPORT No. 56

        PERIOD: 10th September to 16th September 1991


        1.  MISSION OPERATIONS

                 On 10th September a RAM load of the Energetic Particle
                 Composition portion of the Energetic Particle and Neutral
                 Interstellar Gas experiment (KEP) took place.

                 On 11th September a health check of the GAS portion of
                 the experiment took place.

                 On 11th September a sounder mode change in The Radio and
                 Plasma Waves experiment (STO) failed. A Data Processing
                 Unit autonomous failure was detected in the telemetry

                 On 12th September following a critical command request
                 from the STO team, a Data Processing Unit reset was
                 transmitted to the spacecraft. This was successful and
                 sounder operations are continuing normally. No reason for
                 this failure has been discovered. An Anomaly Report is
                 being raised against this incident.

                 Also on 12th September a thermal reconfiguration took
                 place. The External Power Dumpers are now configured to
                 10 watts.

                 On 13th September a Solar X-rays/Cosmic Gamma-Ray Bursts
                 experiment (HUS) burst reference value change took place.

                 An average of 97.8 % data recovery was achieved during
                 this reporting period.

                 The percentage of data acquired as a function of bit rate
                 is as follows:

                 1024 bps 32.8 %
                  512 bps 64.9 %

                 A routine Earth pointing manoeuvre was performed on 15th
                 September.

        2.  SPACECRAFT STATUS


                 POWER

                 Nominal.

                 Estimated S/C power consumption 267 watts.


                 AOCS

                 Nominal.


                 TTC

                 The spacecraft is currently configured with receiver 2 as
                 the prime unit fed via the high gain antenna and with
                 receiver 1 as backup fed through the low gain antenna
                 (LGA-F).  The downlink is currently via EPC1/TWTA1.

                 The 70 meter ground stations are currently in use to
                 support TTC operations.

                 Received downlink level -134 dBm.(70 meter) X-band.

                 (Variations of up to 10 db. can be expected as a result
                 of station antenna in use, local weather conditions, and
                 spacecraft antenna off-pointing).

                 Received uplink level -120.7 dBm.

                 DATA HANDLING

                 Nominal.

                 THERMAL

                 Nominal. A spacecraft thermal reconfiguration took place
                 on 12th September.

        3.       FLIGHT DYNAMICS

                 Solar Aspect   The angle increased from 4.13 on
                 Angle (deg.)   10th September to 5.17 on 16th September.

                 Sun-Probe-Earth  The angle increased from 3.45 on
                 Angle (deg.)     10th September to 4.41 on 16th September.
                 Spin Rate               4.985 rpm.

        4.       ORBITAL DATA

                 Data taken at 09:00 PDT. on 16th September.
                 Distance from Earth                768,643,327 km.
                 Distance from Jupiter              176,922,433 km.
                 Velocity relative to the Sun            64,862 km/hr.
                 Velocity relative to the Earth         132,350 km/hr.

        5.       PLANNED OPERATIONS

                 Routine data gathering operations will continue together
                 with experiment reconfigurations as required.

                 Routine Earth pointing manoeuvres will be carried out
                 on 21st and 23rd September.

                 34 meter ground station coverage will be resumed on 23rd
                 September.

        6.       GROUND SEGMENT

                 The ground segment performed nominally during the
                 reporting period.

      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 23-SEP-1991 14:14:08.19
To:         [e-mail]
CC:
Subj:    Ulysses Update - 09/18/91

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X-VMS-News: mipl5 jpl.spacecraft:173
From: [e-mail] (Ron Baalke)
Subject:Ulysses Update - 09/18/91
Date: 18 SEP 91 23:49:51
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109. TELEPHONE [phone]

                     ULYSSES MISSION STATUS
                       September 18, 1991

     Routine spacecraft operations and data collection continued
to be the primary activities on board the Ulysses spacecraft,
which is traveling just above the ecliptic plane on its way to
Jupiter.

     The 70-meter ground antennas are providing coverage of the
spacecraft through Sept. 23, at which time tracking by the 34-
meter antennas will be resumed.  Earth-pointing maneuvers to keep
the high-gain antenna pointed at Earth are being performed
periodically.  The next set of maneuvers will take place on
Saturday, Sept. 21 and Monday, Sept. 23.  Data acquisition has
been returned to normal recovery levels of about 98 percent
during each reporting period.

     Today Ulysses is about 770 million kilometers (479 million
miles) from Earth, traveling at a heliocentric velocity of
approximately 65,000 kilometers per hour (40,000 miles per hour).
The spacecraft will reach Jupiter in early February 1992, where
it will gain enough momentum from Jupiter's gravity to swing
itself out of the ecliptic plane and onward to the poles of the
sun.

                            #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 23-SEP-1991 14:16:13.45
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/18/91

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From:    [e-mail] (Bob Deen)
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Subject: Magellan Update - 09/18/91
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X-VMS-News: mipl5 jpl.spacecraft:175
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/18/91
Date: 18 SEP 91 23:48:22
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                              MAGELLAN STATUS REPORT
                                September 18, 1991

     The Magellan spacecraft is performing nominally.  No commands were sent
yesterday.  All star scans were successful.

     All spacecraft temperatures remain in the acceptable range.  The Bay 7
temperature which contains CDS (Command Data Subsystem) now peaks at 54.9
degrees C and DMS-B (Data Management Subsystem) head temperature peaks at
35 degrees C.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 23-SEP-1991 14:18:20.30
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/18/91

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Subject: Galileo Update - 09/18/91
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X-VMS-News: mipl5 jpl.spacecraft:174
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/18/91
Date: 18 SEP 91 23:46:38
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                           GALILEO STATUS REPORT
                             September 18, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Playback of the Gaspra optical image data continues today.  At the end of
the DSS-63 (Madrid 70 meter station) pass today approximately 410 lines of
optical navigation image No. 1 will have been received on the ground.

     The routine periodic EPD (Energetic Particles Detector) motor maintenance
activities occurred today as planned.  An imaging instrument (SSI) memory
readout occurred today as planned to verify the instrument's health and safety.

     Tomorrow no spacecraft activity is scheduled; no tracking coverage is
scheduled.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 23-SEP-1991 14:20:13.31
To:         [e-mail]
CC:
Subj:    Galileo Update #2 - 09/19/91

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Subject: Galileo Update #2 - 09/19/91
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X-VMS-News: mipl5 jpl.spacecraft:178
From: [e-mail] (Ron Baalke)
Subject:Galileo Update #2 - 09/19/91
Date: 19 SEP 91 23:34:16
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                         GALILEO STATUS REPORT
                           September 19, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     No spacecraft activities were planned for today.

     A special wobble identification activity will be commanded tomorrow to
gather data defining the x and y axis components of the spacecraft wobble.

      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 23-SEP-1991 14:21:45.69
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/19/91

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X-VMS-News: mipl5 jpl.spacecraft:176
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/19/91
Date: 19 SEP 91 18:13:38
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109.  TELEPHONE [phone]


                     GALILEO MISSION STATUS
                       September 19, 1991

     The Galileo spacecraft is more than 206 million miles from
Earth, and about 196 million miles from the Sun.  It has traveled
1.055 billion miles in its looping flight path since launch in
October 1989, and has about 35 million miles more to go before
encountering Gaspra on October 29, 1991.

     On Monday, Wednesday, and Friday this week the spacecraft
was scheduled to play back recorded segments of its first optical
navigation image, which will locate Gaspra among background stars
and help the flight team correct Galileo's flight path and aim
instruments for the encounter.  More than half of that image had
been received as of Wednesday.

     The spacecraft is operating normally in the dual-spin mode,
with the spin axis pointed toward the Earth, transmitting coded
telemetry at 40 bits per second.  Tuesday and today no tracking
or other spacecraft activity was scheduled.

                              #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 23-SEP-1991 14:23:00.92
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/19/91

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Subject: Magellan Update - 09/19/91
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X-VMS-News: mipl5 jpl.spacecraft:177
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/19/91
Date: 19 SEP 91 20:07:27
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109. TELEPHONE [phone]


                     MAGELLAN STATUS REPORT
                       September 19, 1991

     The Magellan spacecraft is performing normally. Wednesday
night, one star scan was only partially successful. All others
were fine.

     One command was sent Wednesday to gather more solar array
data. The data will be used to gain some insight into a solar
array slippage problem. Earlier, controllers had reset the solar
array drive motor commanded position to adjust for slippage when
it was found the position did not match the on-board computer's
reference.

     All spacecraft temperatures remain in the acceptable range.

                              ######



Forwarded from Anthony Spear, Magellan Project Manager

                       MAGELLAN STATUS REPORT
                         September 19, 1991

     The Magellan spacecraft is performing nominally.

     One command was sent Wednesday morning to change one of the telemetry
support fields to gather more solar array data.  This data will be used to gain
some insight into the solar array slippage problem.

     During Wednesday night one star scan was only partially successful.  All
others were fine.

     All spacecraft temperatures remain in the acceptable range, with no change
from the previous day.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 23-SEP-1991 14:24:30.46
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/20/91

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Subject: Galileo Update - 09/20/91
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X-VMS-News: mipl5 jpl.spacecraft:179
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/20/91
Date: 20 SEP 91 17:21:14
Message-ID:<[e-mail]>

Forwarded from Neal Ausman, Galileo Mission Director

                                 GALILEO
                     MISSION DIRECTOR STATUS REPORT
                              POST-LAUNCH
                        September 13 - 19, 1991

SPACECRAFT

1.  The tape recorder (DMS) playback of the Gaspra optical navigation image
continued this week with DMS memory readout activities completed on
September 15, 16 and 18.  Approximately 55 percent of the image has now been
returned.

2.  Two imaging instrument (SSI) memory readouts were completed on September 14
and 18 to verify the instrument's health and safety.

3.  A NO-OP command was sent on September 18 to reset the command loss timer to
288 hours, its planned value for this mission phase.

4.  An Ultra-Stable Oscillator (USO) test was performed on September 18 to
characterize this ultra stable RF downlink frequency source.

5.  The energetic particle instrument (EPD) performed a sector scan on
September 18 as part of its regularly scheduled motor maintenance activity.
After the scan the motor was repositioned back to Sector 4.  Proper motor
positioning was verified via EPD MRO (Memory Readout) data.

6.  The AC/DC bus imbalance measurements exhibited some changes.  The AC
measurement fluctuated 12 DN and now reads 43.7 volts; the DC measurement
changed 12 DN and now reads 14.4 volts.  All other power telemetry and
subsystem telemetry are normal.

7.  Commands were sent on September 18 and 19 to precondition the spacecraft
for a special Wobble Identification activity planned for September 20.

8.  The Spacecraft status as of end of day September 19 was as follows:

    a)  System Power Margin -  71.5 watts
    b)  Spin Configuration - Dual-Spin
    c)  Spin Rate/Sensor - 3.15 rpm/star scanner
    d)  Spacecraft Attitude is Earth pointed; Sun Point Angle
        - approximately 27 degrees (sun lagging) plus or
        minus 0.3 degree
    e)  Downlink telemetry rate/antenna-40 bps (coded)/LGA-1
    f)  General Thermal Control - all temperatures within
        acceptable range
    g)  RPM Tank Pressures - all within acceptable range
    h)  Orbiter Science- all powered on except PLS, PPR and
        NIMS
    i)  Probe/RRH - powered off, temperatures within
        acceptable range
    j)  CMD Loss Timer Setting - 288 hours
        Time To Initiation - 284 hours


UPLINK GENERATION/COMMAND REVIEW AND APPROVAL:  None

     Project reviewed and approved the EE-3 (Earth-Earth 3)prime Gaspra
encounter profile design on September 17.

GDS (Ground Data Systems):

1.  The first combination DSN (Deep Space Network) Mission Readiness Test (MRT)
and Project Ground Data System (GDS) test was successfully completed on
September 15th with DSS-43 (Canberra 70 meter station).  The objective of the
tests are to demonstrate DSN and GDS readiness for Gaspra support.  The Project
and DSN tests are being combined to minimize requirements for DSN resources.
Project GDS testing has indicated inconsistent time tagging of telemetry data
during DSN Type B Telemetry Processor Assembly (TPA) string support.  Although
this will not affect Gaspra support, this needs to be understood and resolved
before standard operational support can begin using the Type B string.
Operational support is currently scheduled on Type A strings which do not have
this problem.  However, the Project is interested in switching as soon as
possible to take advantage of the better performance available with Type B
telemetry.

TRAJECTORY

     As of noon Thursday, September 19, 1991, the Galileo Spacecraft status was
as follows:

        Distance from Earth          206,104,380 miles
        Distance from Sun            196,059,380 miles (2.11 AU)
        Heliocentric Speed           37,580 miles per hour
        Distance from Gaspra         17,449,040 miles
        Round Trip Light Time        36 minutes, 44 seconds


SPECIAL TOPICS

1.  As of September 19, 1991, a total of 5790 real-time commands have been
transmitted to Galileo.  Of these, 1915  have been pre-planned in the sequence
design and 3875 were not.  In the past week, five real time commands were
transmitted; of these one was pre-planned.  In addition 1903 mini-sequence
commands have been transmitted since March 1991.  Major commanding activities
this week included resetting the command loss time, Wobble ID related DAC
(Delayed Action Commands) turning the TWNC on and the gyro heaters on before
the Wobble ID and gyros off following the Wobble ID.

2.  On September 13, the spacecraft WOBEST attitude control telemetry
measurement indicated an unexpected change of about 1 mrad.  The cause for this
change is unknown but may be due to a slight change in position of the
magnetometer boom induced by the last week's SITURN to Earth point and/or
thermal deflection induced by solar input at Earth pointed attitude (30-degrees
off sun attitude).  The wobble data continued to change over the week
decreasing to approximately .1 mrad (a value very close to the wobble achieved
after the pre EE-2 wobble compensation activity on August 24). A spacecraft
full (x and y axis) wobble identification test is being planned for
September 20.  The consequences of the wobble change on the optical navigation
and Gaspra activities is being assessed.

3.  A training exercise of the uplink process which will be required to
generate "tweaks" to the Scan Platform pointing for Gaspra was conducted in a
series of non-real time segments from September 10th through September 12th.
Although the tweak process completed about 6 hours late, a post-test critique
concluded that most of the problems were related to the preliminary nature of
the baseline sequence.  A test report memo was distributed documenting findings
and resulting actions.  A retest will be conducted during the week of September
30th.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 23-SEP-1991 14:26:42.83
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/20/91

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Message-Id: <[e-mail]>
Subject: Magellan Update - 09/20/91
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X-VMS-News: mipl5 jpl.spacecraft:181
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/20/91
Date: 20 SEP 91 23:16:26
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                        MAGELLAN STATUS REPORT
                          September 20, 1991

     The Magellan spacecraft is performing nominally.

     The next mapping sequence, M1263, was uplinked Thursday night.  This
sequence is set to go active today at 2:30 p.m. PDT.

     All star scans were successful over the last 24 hours.

     All spacecraft temperatures remain in the acceptable range, with Bay 7
lowering .7 degree from the previous day.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 24-SEP-1991 19:37:53.16
To:         [e-mail], [e-mail]
CC:
Subj:    Postage Stamp Ceremony at JPL

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From:    [e-mail] (Bob Deen)
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Subject: Postage Stamp Ceremony at JPL
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X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl3 jpl.general:42
From: [e-mail] (Ron Baalke)
Subject:Postage Stamp Ceremony at JPL
Date: 24 SEP 91 01:28:38
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109. [phone]

Contact: Mary A. Hardin

FOR IMMEDIATE RELEASE                         September 23, 1991

          The public is invited to attend a special ceremony at
10 a.m. Tuesday, Oct. 1, 1991, at the Jet Propulsion Laboratory,
to commemorate the introduction of a set of U.S. postage stamps
depicting planetary exploration.

          The hour-long ceremony will feature statements from
Anthony M. Frank, U.S. postmaster general, and Jose L.
Castellanos, postmaster of Pasadena, and remarks from Dr. Edward
C. Stone, Jr., director of JPL.  The U.S. Marine Corps marching
band will perform.

          In addition to the ceremony, postal workers will be
selling the stamps and other items from 9 a.m. to 3 p.m. in JPL's
von Karman Auditorium.

          The sets feature 10 stamps, each with a picture of one
of the nine planets in our solar system and the Earth's Moon;
each is shown with one of the spacecraft that have journeyed to
it.   Pluto is the only planet not yet explored.   The stamps
show Mariner 10 at Mercury, Mariner 2 at Venus, the Landsat
satellite above the Earth, the Lunar Orbiter at the Moon, the
Viking Orbiter at Mars, Pioneer 11 at Jupiter, Voyager 2 at
Saturn, Uranus and Neptune, and a solitary Pluto waiting to be
visited.

          The stamps were designed by artist Ron Miller of
Fredericksburg, Virginia.  The $5.80 stamp booklet contains two
panes of 10, 29-cent stamps.

                              #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 24-SEP-1991 19:38:40.15
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/23/91

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Date:    Tue, 24 Sep 1991 17:35:08 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/23/91
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X-Vmsmail-To: DADI

X-VMS-News: mipl3 jpl.spacecraft:182
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/23/91
Date: 24 SEP 91 01:26:45
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                             GALILEO STATUS REPORT
                              September 23, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     No spacecraft activities were planned over the weekend; no tracking
coverage was scheduled.

     Today playback of Optical Navigation Image Number 1 continues.  In
additional 100 lines of the image will be returned today over DSS 63
Madrid and  DSS14 Goldstone.  In addition a SSI (Solid State Imaging) health
check memory readout will be performed.

    Tomorrow playback of the optical navigation data will continue.  There
will also be a MAG (Magnetometer) instrument science data memory readout.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 24-SEP-1991 19:40:48.02
To:         [e-mail], [e-mail]
CC:
Subj:    New Mars Mini-Rover Successfully Tested

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: New Mars Mini-Rover Successfully Tested
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl3 jpl.spacecraft:183
From: [e-mail] (Ron Baalke)
Subject:New Mars Mini-Rover Successfully Tested
Date: 24 SEP 91 14:50:17
Message-ID:<[e-mail]>

Drucella Andersen
Headquarters, Washington, D.C.                       September 24, 1991
(Phone:  [phone])

Paula Cleggett-Haleim
Headquarters, Washington, D.C.
(Phone:  [phone])

Jim Doyle
Jet Propulsion Laboratory, Pasadena, Calif.
(Phone:  [phone])


RELEASE:  91-153

NASA SUCCESSFULLY TESTS NEW MARS MINI-ROVER

     Scientists and engineers at NASA's Jet Propulsion Laboratory
(JPL),  Pasadena, Calif., investigating low cost approaches to
exploring Mars, successfully tested a small robotic vehicle in rough
terrain nearly identical to the two Viking landing sites on Mars.  The
test of the mini-rover Rocky III in the Avawatz Mountains south of
Death Valley on Sept. 11 demonstrated one of several proposed
approaches to future Mars exploration.

     Mini-rovers and the even smaller micro-rovers provide NASA
planners with a new class of low-cost planetary exploration options,
said Roger Bedard, Manager of Rover Technologies at JPL.  Micro-rovers
are defined as robotic vehicles under 11 pounds in weight.  Mini-rovers
are larger, up to about 52  pounds, the weight of Rocky III.

     The rovers will carry cameras for close-up looks at the surface
and to scan the horizon of Mars.  In addition, they will carry micro-
machined sensors to test the atmosphere and soil, spectrometers to
gather geologic information and seismometers to capture data on crustal
motion.

     Dr. Matthew Golombek, principal science advisor on the project,
said the terrain used in the test has the rock size and distribution of
the Viking 2 site on Mars and features large boulders strewn across a
graveled surface.  Rocky III successfully traversed the rough terrain
in two tests, he said.  It also was successful in traversing a lava
field in the Mojave Desert.  "It was at least a starting point,"
Golombek said.  "We are certain there are basalt (lava) flows on Mars.
We are testing this rover for an unmanned sample-return mission."

     Don Bickler, an engineer and one of the designers of the rover,
said the group wanted also to "test the rover's configuration, the
suspension geometry, the ratios of levers and the wheel diameters.  We
wanted to see if it would confirm the tests we made in the laboratory,
to see if in the natural environment this thing would perform as the
lab tests said it would.  And it did."

     The next generation of micro- and mini-rovers, now being designed,
will include microsensors to help the machine measure some qualities of
its environment.  Because of their small size and low weight, micro-
and mini- rovers would be relatively inexpensive to launch to the moon
or Mars, Bedard said.

     "A new era of space exploration is made possible by advances in
miniaturization technology and in distributed communications," said Dr.
Giulio Varsi, manager of JPL's Space Automation and Robotics Program.
"I believe these advances will make possible less expensive missions
and broader participation of people."

     JPL developed and tested the micro- and mini-rovers for NASA's
Office of Aeronautics, Exploration and Technology, Washington, D.C.

- end -
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 24-SEP-1991 19:44:02.81
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/24/91

Return-Path: <[e-mail]>
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Date:    Tue, 24 Sep 1991 17:40:11 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/24/91
To:      [e-mail]
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X-VMS-News: mipl3 jpl.spacecraft:184
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/24/91
Date: 24 SEP 91 18:34:42
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                            GALILEO STATUS REPORT
                              September 24, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Playback of Optical Navigation Image No. 1 continues today.  By the end
of the Canberra Pass later tonight, more than 75% of the total image will have
been captured on the ground and delivered to the Image processing system.

     Tomorrow, the Playback of Optical Navigation Image No.1 will continue.  A
periodic RPM (Retro Propulsion Module) flushing active is also planned.  In
addition, there will also be MAG (Magnetometer) and EUV (Extreme Ultraviolet
Spectrometer) instrument science data memory readouts.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 24-SEP-1991 19:44:31.89
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/24/91

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Date:    Tue, 24 Sep 1991 17:40:56 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/24/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl3 jpl.spacecraft:185
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/24/91
Date: 24 SEP 91 23:19:16
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                          MAGELLAN STATUS REPORT
                            September 24, 1991

     The Magellan spacecraft is performing nominally.  All starcals (star
calibrations) yesterday were successful, with only one missed star.

     Since Friday the spacecraft has been operating under the M1263 command
sequence.  This sequence includes two 22-minute cooling periods in each orbit,
and offpointing of the solar panels for thermal control.

     The solar panel drive mechanism continues to experience a slippage,
resulting in a difference of several degrees in the position indicated by the
potentiometers as compared to the commanded position shown in the on-board
computer.  For example, this difference increased by 2-1/2 degrees in the last
24 hours.

     The problem, which has been observed for nearly a year, is more noticable
when the orbit geometry requires greater movement of the solar arrays.  The
spacecraft controllers have corrected the difference by adjusting the commanded
position in the on-board computer to match the actual position.  Normally this
correction is made when the slippage approaches a few degrees.

     So later today, controllers will send up the correction to the Solar Array
Drive Mechanism (SADM) commanded position.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 24-SEP-1991 19:52:35.70
To:         [e-mail]
CC:
Subj:    HQ RELEASE 91-150/SLS-1 NEW DISCOVERIES

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ RELEASE 91-150/SLS-1 NEW DISCOVERIES
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X-VMS-News: mipl3 nasa.nasamail.p:265
From: [e-mail] (HQ NEWSROOM)
Subject:HQ RELEASE 91-150/SLS-1 NEW DISCOVERIES
Date: Thu, 19 Sep 91 11:13 PDT
Message-ID:<NJJB-2970-1990@nasamail>

Paula Cleggett-Haleim
Headquarters, Washington          September 19, 1991
(Phone:  [phone])

Kari Fluegel
Johnson Space Center, Houston, Texas
(Phone:  [phone])

Jane Hutchison
Ames Research Center, Mountain View, Calif.
(Phone:  [phone])

RELEASE:  91-150


EARLY RESULTS FROM LIFE SCIENCES MISSION SHOW
NEW DISCOVERIES

    Scientists reporting preliminary results from
the Spacelab Life Sciences-1 mission, flown last
June, say strong scientific discoveries
are forthcoming.  Already indications are that the
9-day mission has provided new technology, offered
first-time direct measurements and validated ground-
based models.  The findings are relevant to the
health of spaceflight crews as well as important
clinical problems.

    "The mission has exceeded our expectations.
Although the results are preliminary, there is
significant, new information that is changing
our understanding of how humans adapt to
spaceflight," said Dr. Arnauld Nicogossian, Director
of NASA's Life Sciences Division.

    Highlighted below are preliminary findings of
SLS-1 experiments, which involved interrelated
studies of human and animal adaptation
to space.

    Consistent with findings from similar
experiments, white blood cell responsiveness, which
helps the body fight infections, decreased.
However scientists observed that function can be
increased two-fold with the use of microcarriers--
small glass beads that promote cell interaction,
which is essential for normal functioning.

                          - more -



                             - 2 -

    Preliminary results from the blood volume
study show that within the first 24 hours of space
flight, the volume of blood decreases by
more than 10 percent in astronauts.  The
redistribution of blood that occurs during
spaceflight causes the blood volume to be less than
optimal upon return to Earth.  Readaptation results
from an increase in plasma volume over several hours
and red blood cell mass over a few days.

    Astronauts have a reduced red blood cell mass
after exposure to space.  Various hypotheses have
been made to account for this reduction, but they
remain unproven.

    For the first time the kidney's role in
compensating for weightlessness was studied.
Preliminary analysis shows very early changes occur
in body compartment analysis and hormone results.
Scientists say the importance of the renal
involvement in blood volume and pressure control
must now be considered in the assessment of the
health status of spaceflight crews.

    Direct and continuous measurement of central
venous pressure using a cathetor produced unexpected
results that suggested that much of the
cardiovascular adaptation to space occurs on the
launch pad and during launch.

    The lung function was thought to be gravity-
dependent; that is on Earth, the air flow goes more
to the upper lung with blood flow greater at the
bottom.  Scientists expected that this imbalance
would disappear in a weightless environment.
However, it was retained in space.  The inference is
that the distribution of air and blood flow is
not gravity dependent; scientists will have to look
for other explanations to this phenomena.

    Other studies demonstrated that decreased
responsiveness of the blood vessels may contribute
to cardiovascular deconditioning.

    The jellyfish, flown for the first time,
metamorphosed from one form--polyps--to another--
ephyrae--in space.  Both ephyrae which
formed on earth and those that formed in space could
pulse and swim.  Space-formed jellyfish and ground-
based controls are being studied in detail to
determine whether there are differences in their
structure or behavior.

    Preliminary results from studying gravity
receptors, which help people orient their bodies,
indicated that they are well organized to
adapt to space.

                             - more -


                              - 3 -

    Preliminary findings indicate that both ground
control and flight rats gained the same amount of
weight.  Bone length in both groups was comparable,
although differences in the cranium were noted.  It
also appears that while the bone continued to grow
and add mineral in the flight group, the bone
strength is less than would be predicted by mass and
mineral content.

    Early analysis of samples from four
crewmembers indicated increased calcium excretion
and bone mineral loss.

    Muscles showed a significant decrease in
muscle mass resulting from exposure to
weightlessness, an indication of muscle fiber
atrophy.  In addition, there was a reduction in the
use of certain fatty acids as a usable energy
source.  These changes reflect the reduced gravity
load and may impair the ability of a muscle to
perform normally.

    SLS-1 scientists will continue to review data
collected during the mission.  Detailed written
reports will be produced by mid-1992 and the
SLS-1 investigations will be continued in the
upcoming SLS-2 mission, scheduled for mid-1993.

    The Spacelab Life Sciences-1 mission is
managed by the NASA Johnson Space Center for the
Office of Space Science and Applications.

                          - end -



From:       [e-mail] (Bob Deen) 25-SEP-1991 19:06:17.88
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/25/91

Return-Path: <[e-mail]>
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Date:    Wed, 25 Sep 1991 17:02:19 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/25/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:186
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/25/91
Date: 25 SEP 91 19:41:26
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                              GALILEO STATUS REPORT
                                September 25, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Playback of Optical Navigation Image No. 1 continues today.  By the end of
the Goldstone Pass later tonight, more than 90% of the total image will have
been captured on the ground.  Unless there is some major problem in the next
three scheduled tracking passes it will not be necessary to use the Contingency
Playback Window.  Retrieval of Optical Navigation Image No. 1 went very well.

     A periodic RPM (Retro Propulsion Module) flushing activity is scheduled for
today.

     Tomorrow, no spacecraft activities are planned.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 25-SEP-1991 19:06:58.75
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/25/91

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 25-SEP-1991 19:06:29.64
Date:    Wed, 25 Sep 1991 17:03:17 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/25/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:187
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/25/91
Date: 25 SEP 91 19:42:58
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                            MAGELLAN STATUS REPORT
                              September 25, 1991

     The Magellan spacecraft is performing nominally.  There were two missed
stars during yesterday's starcals (star calibrations) and desats (desaturation
of the reaction wheels).

     Yesterday, at about 9:00 AM (PDT), spacecraft controllers noticed that the
slip rate on the solar array drive mechanism (SADM) had increased to 4 degrees
in the past 24 hours.  At this rate it was likely to trigger the on-board fault
protection.

     They were unable to send up commands to reset the referenced position or
to disable the SADM control loss fault protection because the spacecraft was
starting a new mapping pass.

     As a result, Magellan did an IODA swap (changing from one Input-Output
Drive Assembly to its backup).  The spacecraft continued mapping, and when
two-way communications resumed, the controllers disabled the SADM control loss
fault protection and reset other fault protection parameters.

     All systems appear nominal, and the SADM slip has gone back to its
previous rate.

     Magellan continues to map Venus in a right-look, constant incidence angle
mode.  Due to the two 22-minute cooling periods in each orbit, the image swaths
begin at about 2.5 degrees south latitude and extend to the South Pole.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 25-SEP-1991 19:08:00.74
To:         [e-mail]
CC:
Subj:    Ulysses Update - 09/23/91

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 25-SEP-1991 19:07:35.48
Date:    Wed, 25 Sep 1991 17:04:23 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Ulysses Update - 09/23/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:188
From: [e-mail] (Ron Baalke)
Subject:Ulysses Update - 09/23/91
Date: 25 SEP 91 21:43:09
Message-ID:<[e-mail]>

Forwarded from Peter Beech, Ulysses Operations Manager

        SUBJECT:   ULYSSES MISSION OPERATIONS REPORT No. 57

        PERIOD: 17th September to 23rd September 1991


        1.  MISSION OPERATIONS

                 Tape recorder operations based on recovering data
                 acquired during the out of view periods are continuing on
                 a routine scheduled basis.

                 Experiment reconfigurations have been carried out as
                 required.

                 An average of 97.93 % data recovery was achieved during
                 this reporting period.

                 The percentage of data acquired as a function of bit rate
                 is as follows:

                 1024 bps 53.15 %
                  512 bps 44.74 %

                 Routine Earth pointing manoeuvres were performed on 21st
                 and 23rd September.

                 34 meter ground station coverage was resumed on 23rd
                 September.

        2.  SPACECRAFT STATUS

                 POWER

                 Nominal.

                 Estimated S/C power consumption 267 watts.

                 AOCS

                 Nominal.

                 TTC

                 The spacecraft is currently configured with receiver 2 as
                 the prime unit fed via the high gain antenna and with
                 receiver 1 as backup fed through the low gain antenna
                 (LGA-F).  The downlink is currently via EPC1/TWTA1.

                 The 70 meter ground stations are in use to support TTC
                 operations until 23rd September.

                 Received downlink level -135 dBm.(70 meter) X-band.

                 (Variations of up to 10 db. can be expected as a result
                 of station antenna in use, local weather conditions, and
                 spacecraft antenna off-pointing).

                 Received uplink level -129.0 dBm.

                 DATA HANDLING

                 Nominal.

                 THERMAL

                 Nominal.

        3.       FLIGHT DYNAMICS

                 Solar Aspect   The angle increased from 5.05 on
                 Angle (deg.)   17th September to 6.07 on 23rd September.

                 Sun-Probe-Earth  The angle increased from 4.57 on
                 Angle (deg.)     17th September to 5.49 on 23rd September.

                 Spin Rate               4.984 rpm.

        4.       ORBITAL DATA

                 Data taken at 09:00 PDT. on 23rd September.
                 Distance from Earth                771,337,941 km.
                 Distance from Jupiter              168,241,804 km.
                 Velocity relative to the Sun            64,260 km/hr.
                 Velocity relative to the Earth         115,290 km/hr.

        5.       PLANNED OPERATIONS

                 Routine data gathering operations will continue together
                 with experiment reconfigurations as required.

                 Routine Earth pointing manoeuvres will be carried out
                 on 25th, 27th and 29th September.

        6.       GROUND SEGMENT

                 The ground segment performed nominally during the
                 reporting period.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 25-SEP-1991 19:08:50.08
To:         [e-mail]
CC:
Subj:    Galileo Update #2 - 09/25/91

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update #2 - 09/25/91
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X-VMS-News: mipl5 jpl.spacecraft:189
From: [e-mail] (Ron Baalke)
Subject:Galileo Update #2 - 09/25/91
Date: 25 SEP 91 23:07:26
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109.  TELEPHONE [phone]

                     GALILEO MISSION STATUS
                       September 25, 1991

     The Galileo spacecraft is 214 million miles from Earth, and
197.6 million miles from the Sun; it is receding from both.  Its
speed in orbit is 37,143 miles per hour.  The spacecraft still
has to fly about 29 million miles along the orbit before its
encounter with Gaspra in just under five weeks.

     Galileo is operating normally in dual spin, transmitting
coded telemetry at 40 bits per second.  By the end of today, it
will have transmitted more than 90 percent of the first optical
navigation image.  The image already indicates Gaspra's position
against background stars, fully meeting the navigation data
requirements.

                              #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 27-SEP-1991 12:52:40.20
To:         [e-mail]
CC:
Subj:    Ulysses Update - 09/26/91

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Subject: Ulysses Update - 09/26/91
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X-VMS-News: mipl5 jpl.spacecraft:190
From: [e-mail] (Ron Baalke)
Subject:Ulysses Update - 09/26/91
Date: 26 SEP 91 15:31:55
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109. TELEPHONE [phone]

                     ULYSSES MISSION STATUS
                       September 26, 1991

     Ground controllers resumed tracking of the Ulysses
spacecraft with the 34-meter antennas on Monday, Sept. 23, after
using the 70-meter dishes for science experiments that were
performed during a solar conjunction in late August.  All ground
operations and data acquisition are proceeding normally.

     Routine Earth-pointing maneuvers are being performed about
every three days.  The next set of maneuvers are scheduled for
Friday, Sept. 27 and Sunday, Sept. 29.

     Today Ulysses is approximately 772 million kilometers (480
million miles) from Earth, closing in on Jupiter at a
heliocentric velocity of about 64,000 kilometers per hour (40,000
miles per hour).  The spacecraft has about 100 million miles to
travel before reaching Jupiter in early February 1992.

                              #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 27-SEP-1991 12:54:20.21
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/26/91

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/26/91
To:      [e-mail]
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X-VMS-News: mipl5 jpl.spacecraft:191
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/26/91
Date: 26 SEP 91 16:59:36
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                          GALILEO STATUS REPORT
                            September 26, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Playback of Optical Navigation Image No. 1 continues today.  By the end of
the Goldstone pass later tonight the total image will have been captured on the
ground.  The Contingency Playback Window will not be used.  Retrieval of
Optical Navigation Image No. 1 went very well.

     Optical Navigation Image No.2 will be shuttered tomorrow.  The DMS (Data
Management Subsystem) will be set up for the DMSMRO (DMS Memory Readout)
playback of that image.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 27-SEP-1991 12:54:47.14
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update #2 - 09/26/91

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Subject: Magellan Update #2 - 09/26/91
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X-VMS-News: mipl5 jpl.spacecraft:192
From: [e-mail] (Ron Baalke)
Subject:Magellan Update #2 - 09/26/91
Date: 26 SEP 91 21:27:57
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                           MAGELLAN STATUS REPORT
                             September 26, 1991

     The Magellan spacecraft is performing nominally.  There were two missed
stars during yesterday's starcals (star calibrations) and desats
(desaturations).

     All systems appear nominal, and the SADM (Solar Array Drive Mechanism)
slip has gone back to its previous rate.

     Magellan continues to map Venus in a right-look, constant incidence angle
mode.  Due to the two 22-minute cooling periods in each orbit, the image swaths
begin at about 2.5 degrees south latitude and extend to the South Pole.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 27-SEP-1991 13:29:48.18
To:         [e-mail], [e-mail]
CC:
Subj:    Galileo Detects Lightning on Venus

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From:    [e-mail] (Bob Deen)
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Subject: Galileo Detects Lightning on Venus
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X-VMS-News: mipl5 jpl.spacecraft:193
From: [e-mail] (Ron Baalke)
Subject:Galileo Detects Lightning on Venus
Date: 26 SEP 91 21:30:20
Message-ID:<[e-mail]>

Paula Cleggett
Headquarters, Washington, D.C.                              September 26, 1991
(Phone:  [phone])

James H. Wilson
Jet Propulsion Laboratory, Pasadena, Calif.
(Phone:  [phone])


RELEASE:  91-156

LIGHTNING STORMS DETECTED IN VENUS ATMOSPHERE

    Scientists who studied the planet Venus from data received from the
interplanetary spacecraft Galileo have greatly increased confidence that
there are lightning storms in that planet's atmosphere.

    The science team used the spacecraft's plasma wave instrument to
detect electromagnetic equivalents of thunderclaps most probably
generated by lightning bolts deep in the atmosphere.

    Galileo flew by Venus at a distance of about 10,000 miles in February
1990.  Pictures and other observations of the planet were recorded and
then transmitted to Earth in November 1990, according to plan.  Scientists
have been analyzing the data since then.

    Galileo's primary scientific objective is to conduct close and extended
observations of Jupiter, its atmosphere and its moons, beginning in
December 1995.  Launched in 1989, it was programmed to fly by Venus
and Earth for gravity assists to help it reach Jupiter.  It flew by Earth in
December 1990 and is currently in the Asteroid Belt where it will obtain a
close look at the asteroid Gaspra this October before returning for a second
and final Earth flyby in December 1992.

    Science magazine published this week a collection of eight scientific
articles on Galileo's Venus observations.

- end -
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 27-SEP-1991 13:50:40.84
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/26/91

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Subject: Magellan Update - 09/26/91
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X-VMS-News: mipl5 jpl.spacecraft:194
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/26/91
Date: 26 SEP 91 21:24:49
Message-ID:<[e-mail]>

PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109. TELEPHONE [phone]

                     MAGELLAN STATUS REPORT
                       September 26, 1991

     The Magellan spacecraft is performing normally, but there
were two missed star calibrations during Wednesday's starcals.

     Magellan continues to map Venus looking to its right and
with a constant angle. Due to two 22-minute cooling periods in
each orbit, the image swaths begin at about 2.5 degrees south
latitude and extend to the south pole. That represents an
additional four minutes of lost transmission time. Earlier, the
spacecraft was hiding behind its high-gain antenna for two 20-
minute periods to prevent solar heating of the instruments.

     The slip rate in the solar array drive mechanism increased
to 4 degrees earlier this week. That is, there was a 4 degree
difference between the actual angle of the solar array and the
information contained in the on-board computer. Controllers sent
up new commands to disable the drive mechanism's fault protection
and set new fault protection parameters.

     Today, the solar array was back to normal.

                             #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | Beware of programmers who
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | carry solder irons.
 |_____|/  |_|/       |_____|/                     |



From:       [e-mail] (Bob Deen) 27-SEP-1991 13:52:04.01
To:         [e-mail], [e-mail]
CC:
Subj:    New Magellan Images Released

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: New Magellan Images Released
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X-VMS-News: mipl5 jpl.spacecraft:195
From: [e-mail] (Ron Baalke)
Subject:New Magellan Images Released
Date: 27 SEP 91 15:44:28
Message-ID:<[e-mail]>

Paula Cleggett-Haleim
Headquarters, Washington, D.C.                    September 27,1991
(Phone:  [phone])

Jim Doyle
Jet Propulsion Laboratory, Pasadena, Calif.
(Phone:  [phone])

N91-67

NOTE TO EDITORS:  NEW MAGELLAN IMAGES RELEASED

     Two new images released by NASA today show that Venus is even
more torn by tectonic forces than had been thought before the
Magellan mapping began.  According to Dr. Steve Saunders, Magellan
Project Scientist at NASA's Jet Propulsion Laboratory, Pasadena,
Calif., the planet's dynamic nature is becoming increasingly evident
with more than 90 percent of Venus now mapped by the Magellan
spacecraft over the past 377 days.  He describes Earth's nearest
planetary neighbor as a planet of searing winds, violent crustal
deformations and giant volcanic eruptions,

     One full-resolution radar image shows the Akna Montes
(mountains) on the west side of the elevated smooth plateau Lakshmi
Planum (plains), which were formed by extensive volcanic eruptions
and is surrounded by mountains.  The image also shows an impact
crater named Wanda which appears to have been made after the Akna
mountains formed.  The western ridge of the crater has collapsed
onto its floor.

     Another image shows the Danu mountains to the south of the
Lakshmi Planum and a circular volcanic dome 12 miles in diameter.
The southern part of the dome has been deformed by the tectonic
processes which created the mountains.

     "These mountains appear to have been formed by uplift resulting
from compression," Saunders said.  "All around the high plains, the
volcanic plains surface is folded and faulted at the base of the
mountains."

     The two black & white images to illustrate this release,
numbers 91-H-746 and 91-H-747, are available to news media
representatives by calling the NASA Broadcast and Audio-Visual
Branch at 202/453-8375.

- end -
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen) 27-SEP-1991 15:44:22.27
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/27/91

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Date:    Fri, 27 Sep 1991 13:39:47 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/27/91
To:      [e-mail]
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X-VMS-News: mipl5 jpl.spacecraft:196
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/27/91
Date: 27 SEP 91 16:54:37
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                            GALILEO STATUS REPORT
                             September 27, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Today, the second of the four planned optical navigation images will be
shuttered this evening and stored on the tape recorder for playback over the
next 2 weeks; playback of the image will begin tomorrow.

     Also tomorrow, an imaging instrument (SSI) memory readout will be
performed to verify the instrument's health status.

     No spacecraft activity is planned on Sunday.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen) 27-SEP-1991 15:45:43.69
To:         [e-mail]
CC:
Subj:    Magellan Update - 09/27/91

Return-Path: <[e-mail]>
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Date:    Fri, 27 Sep 1991 13:41:15 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/27/91
To:      [e-mail]
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X-VMS-News: mipl5 jpl.spacecraft:197
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/27/91
Date: 27 SEP 91 16:56:24
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                           MAGELLAN STATUS REPORT
                             September 27, 1991

     Magellan spacecraft performance continues to be excellent.  All starcals
(star calibrations) and desats (desaturations) yesterday were successful.  All
spacecraft temperatures remain in the acceptable range, essentially unchanged
in the past two days.

     Yesterday, spacecraft controllers sent up the normal updates to the
mapping quaterion polynomials and radar control parameters.  No commanding is
planned from today through Monday.

     Magellan has now completed 2662 mapping orbits of Venus.  In the present
mapping mode, each orbit returns an image swath which extends from just below
the equator to the South Pole.  Each swath is about 14 miles wide and 6000
miles long.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen) 27-SEP-1991 15:49:37.74
To:         [e-mail]
CC:
Subj:    Galileo Update #2 - 09/27/91

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Date:    Fri, 27 Sep 1991 13:45:37 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update #2 - 09/27/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:198
From: [e-mail] (Ron Baalke)
Subject:Galileo Update #2 - 09/27/91
Date: 27 SEP 91 18:50:07
Message-ID:<[e-mail]>

Forwarded from Neal Ausman, Galileo Mission Director

                               GALILEO
                   MISSION DIRECTOR STATUS REPORT
                             POST-LAUNCH
                      September 20 - 26, 1991

SPACECRAFT

1.  The tape recorder (DMS) playback of the Gaspra optical navigation image
continued this week with DMS memory readout activities on September 23, 24, 25
and 26.  Full retrieval of the first of the four planned optical navigation
images is going very well; full return is expected by September 27; therefore
the planned contingency playback window will not be needed.  The next optical
navigation image will be shuttered on September 27 and stored on the DMS for
playback over the next two plus weeks.

2.  A special spacecraft wobble identification activity was commanded on
September 20.  The wobble information was collected from gyro data in both the
X and Y axes.  This activity was performed in response to the unexpected Y-axis
wobble change (approximately 1 mrad) observed in the WOBEST measurement on
September 13; no change was detected in the X-axis from the previous wobble.
The cause for the unexpected Y-axis change is being investigated.

3.  Another imaging subsystem (SSI) memory readout was performed on
September 23 to verify the imaging instrument's health status.

4.  A NO-OP command was sent of September 23 to reset the command loss timer to
288 hours, its planned value for this mission phase.

5.  A cruise science memory readout for the MAG (Magnetometer) and EUV (Extreme
Ultraviolet Spectrometer) instruments was completed on September 24.

6.  An RPM (Retro Propulsion Module) thruster maintenance "flushing" activity
was completed on September 25.  Only 10 of 12 thrusters were "flushed" during
this exercise; the P-thrusters were not "flushed" since they are used
periodically to perform Earth point activities.

7.  Several (12) Delayed Action Commands (DACs) were sent on September 24; all
were attitude control pointing deadband commands to increase the pointing
deadband to 100 mrad to preclude a possible command constraint violation if an
autonomous HGA (High Gain Antenna) correction activity were to take place at
the same time the thruster PA issued a scan platform safe command.

8.  The AC/DC bus imbalance measurements exhibited some change.  The AC
measurement dropped about 8 DN and now reads near 43.7 volts; the DC
measurement dropped 2 Dn and now read 15.1 volts.  All other power telemetry
and subsystem telemetry are normal.

9.  The Spacecraft status as of end of day September 26 was as follows:

    a)  System Power Margin -  70 watts
    b)  Spin Configuration - Dual-Spin
    c)  Spin Rate/Sensor - 3.15 rpm/star scanner
    d)  Spacecraft Attitude is Earth pointed; Sun Point Angle
        - approximately 26.4 degrees (sun lagging) plus or
        minus 0.3 degree
    e)  Downlink telemetry rate/antenna-40 bps (coded)/LGA-1
    f)  General Thermal Control - all temperatures within
        acceptable range
    g)  RPM Tank Pressures - all within acceptable range
    h)  Orbiter Science- all powered on except PLS, PPR and
        NIMS
    i)  Probe/RRH - powered off, temperatures within
        acceptable range
    j)  CMD Loss Timer Setting - 288 hours
        Time To Initiation - 240 hours


UPLINK GENERATION/COMMAND REVIEW AND APPROVAL:  None

GDS (Ground Data Systems):

1.  Unit testing has been successfully completed on the Multimission Image
Processing Lab (MIPL) software Reed Solomon decoder.  The software decoder will
provide a backup to the hardware decoder used to process optical navigation
pictures for Gaspra.  Data from OPNAV 1 passed through both the hardware and
software decoders during unit testing yielded identical outputs.  System
and integration testing has now started with delivery scheduled for October 9th.
Agreement was reached with the Voyager Project for the use of their decoder
interface card during critical periods in the event the software decoder
implementation does not work.

2.  The DSN (Deep Space Network) successfully completed the Gaspra Mission
Readiness Test (MRT) with DSS-63 (Madrid 70 meter station) on September 23rd.
Project test personnel are continuing to work with the DSN to eliminate
telemetry time tagging variations on the Type B telemetry strings when used for
Galileo support.  Although this will not affect Gaspra support, the variations
need to be eliminated to permit the Project to periodically calibrate the drift
in the spacecraft clock.


TRAJECTORY

As of noon Thursday, September 26, 1991, the Galileo Spacecraft status was as
follows:

     Distance from Earth          215,385,600 miles
     Distance from Sun            187,856,500 miles (2.12 AU)
     Heliocentric Speed           37,070 miles per hour
     Distance from Gaspra         14,367,680 miles
     Round Trip Light Time        38 minutes, 22 seconds


SPECIAL TOPICS

1.  As of September 26, 1991, a total of 5828 real-time commands have been
transmitted to Galileo.  Of these, 1916  have been pre-planned in the sequence
design and 3912 were not.  In the past week, 38 real time commands were
transmitted; of these one was pre-planned. In addition 1903 mini-sequence
commands have been transmitted since March 1991. Major commanding activities
this week included resetting the command loss timer, widening the pointing
deadband and reconfiguring the radio subsystem to collect ranging navigation
data.

2.  At beginning of the DSS-63 pass on September 23, two unexpected CDS
(Command Data Subsystem) lock changes were observed.  This is the 11th
occurrence of this event.  The spacecraft telemetry signature was identical to
the previous 10 events.  As on previous occasions, there was no evidence that a
command was received or issued by the CDS; all planned commands were properly
processed by the CDS.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen) 27-SEP-1991 15:57:43.24
To:         [e-mail]
CC:
Subj:    HQ 91-155/UARS RESULTS

Return-Path: <[e-mail]>
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Date:    Fri, 27 Sep 1991 13:53:12 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ 91-155/UARS RESULTS
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:267
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-155/UARS RESULTS
Date: Thu, 26 Sep 1991 13:43:00 GMT
Message-ID:<EJJB-2971-3227@nasamail>

FOR IMMEDIATE








Brian Dunbar
Headquarters, Washington, D.C.                                    September 26, 1991
(Phone:  [phone])

Jessie Katz
Goddard Space Flight Center, Greenbelt. Md.
(Phone:  [phone])


RELEASE:  91-155

NEW RESEARCH SATELLITE PROVIDES GLOBAL OZONE MAPING DATA


    Preliminary data from NASA's Upper Atmosphere Research Satellite
(UARS) are providing scientists with a three-dimensional, global map of
ozone in the upper atmosphere and a global view of chlorine monoxide, a
key chemical in ozone depletion.  The results appear to confirm existing
aircraft and ground-based research about the chemical processes that lead
to ozone depletion.

    These first data were obtained from UARS' Microwave Limb Sounder,
one of 10 instruments aboard the new research satellite deployed by Space
Shuttle Discovery on Sept. 15.  The satellite's orbit, 363 miles above the
Earth at a 57-degree inclination to Earth's Equator, provides greatly
extended geographic ozone coverage.  UARS' side-mounted instruments
provide a three-dimensional view of the developing ozone "hole" over
Antarctica.

    As the first major element of NASA's new Mission to Planet Earth
program, UARS has begun the global-scale study of the Earth as a complete
environmental system.  UARS will provide scientists with the first
comprehensive data set on the chemistry, wind directions and energetics
of Earth's upper atmosphere.

    UARS's main focuses are the processes involved in ozone depletion.
Ozone, a molecule made up of three atoms of oxygen, blocks the Sun's
ultraviolet radiation that poses a health risk to humans and endangers food
crops.

- more -

- 2 -


    Previous studies using aircraft and ground-based instruments have
indicated that reactive chlorine atoms, freed from chemicals such as
chlorofluorocarbons, destroy ozone in the upper atmosphere or
stratosphere.  Chlorine atoms capture oxygen atoms from ozone, creating a
molecule of chlorine monoxide and a molecule of oxygen, which does not
block ultraviolet light.  The chlorine monoxide atom then is broken up,
freeing the chlorine atom.  Repetition of the cycle leads to the destruction
of thousands of ozone molecules by a single chlorine atom.

    The Microwave Limb Sounder instrument aboard UARS continuously
measures ozone, chlorine monoxide, temperature and water vapor.  It is a
collaborative effort with the United Kingdom.  Dr. Joe Waters of NASA's Jet
Propulsion Laboratory, Pasadena, Calif., and Dr. Gordon Peckham of Herrot
Watt University, Edinburgh, Scotland, are the instrument's principal
investigators.

    UARS is still undergoing testing and is scheduled to begin full
science operations in mid-October.  Eight other instruments have been
activated and spacecraft controllers report verification and testing have
been successful.

    UARS is managed by the Goddard Space Flight Center, Greenbelt,
Md., for NASA Headquarters Office of Space Science and Applications,
Washington, D.C.

- end -




From:       [e-mail] (Bob Deen) 27-SEP-1991 15:59:14.74
To:         [e-mail]
CC:
Subj:    HQ 91-154/TSS PAYLOAD SPECIALIST

Return-Path: <[e-mail]>
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Date:    Fri, 27 Sep 1991 13:55:28 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ 91-154/TSS PAYLOAD SPECIALIST
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:268
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-154/TSS PAYLOAD SPECIALIST
Date: Thu, 26 Sep 1991 12:49:00 GMT
Message-ID:<NJJB-2971-3126@nasamail>

Don Savage
Headquarters, Washington, D.C.                      September 26, 1991
(Phone:  [phone])

Debra J. Rahn
Headquarters, Washington, D.C.
(Phone:  [phone])


RELEASE:  91-154

PAYLOAD SPECIALISTS FOR TETHERED SATELLITE MISSION NAMED


     Dr. Franco Malerba has been named Prime Payload Specialist and
Dr. Umberto Guidoni has been named Backup Payload Specialist for the
Tethered Satellite System (TSS-1) mission scheduled for flight aboard
the Space Shuttle Atlantis next Summer.  The Tethered Satellite System
is a cooperative mission between NASA and Italy's space agency,
Agenzia Spaziale Italiana (ASI).  As Prime Payload Specialist, Dr.
Malerba will be the first Italian citizen to fly in space.

     Malerba was born in Genoa, Italy, in 1946, and obtained his
doctorate in physics at the University of Genoa in 1974.  He joined
ASI in 1989 after preliminary selection as an Italian candidate for
TSS-1 Payload Specialist.  During the mission he will work with the
mission specialists in operating the Tethered Satellite System aboard
the Shuttle orbiter and carry out other TSS science investigations
during the 7-day mission.

     Guidoni was born in Rome in 1954 and obtained his doctorate in
physics at the University of Rome in 1978.  Since 1984 he has been
involved with the TSS program as a co-investigator of one of the
Italian experiments on the satellite, and in 1989 he joined ASI after
preliminary selection as a candidate for TSS-1 Payload Specialist.  As
backup, he will be ready to participate in the TSS-1 flight as Prime
Payload Specialist if Malerba is unable to fulfill his duties.  During
the mission he will serve in a key science team role at NASA's
Marshall Space Flight Center, Huntsville, Ala..


- more -

- 2 -

     The Tethered Satellite System consists of a satellite attached to
the Shuttle orbiter by a conducting cable, or tether, which is wound
on a motorized reel assembly in the Shuttle's payload bay.  The ASI is
developing the satellite and NASA is developing the deployer
mechanism.  Both are developing the scientific complement.  During the
mission, the satellite will be reeled out on the tether to 12 miles
above the Shuttle's orbit to verify the system design, demonstrate the
capability to safely deploy, control and retrieve the satellite and to
conduct science investigations.  Twelve scientific investigations have
been selected for TSS-1, including studies of the electrodynamic
processes taking place in the Earth's upper atmosphere and of the
dynamic forces in a tethered satellite system.

- end -




From:       [e-mail] (Bob Deen) 27-SEP-1991 16:15:50.20
To:         [e-mail], [e-mail]
CC:
Subj:    HQ 91-156/VENUS LIGHTNING

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 16:14:39.40
Date:    Fri, 27 Sep 1991 14:11:16 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ 91-156/VENUS LIGHTNING
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 nasa.nasamail.p:271
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-156/VENUS LIGHTNING
Date: Thu, 26 Sep 1991 20:06:00 GMT
Message-ID:<NJJB-2971-4182@nasamail>

FOR IMMEDIATE RELEASE








Paula Cleggett
Headquarters, Washington, D.C.                                   September 26, 1991
(Phone:  [phone])

James H. Wilson
Jet Propulsion Laboratory, Pasadena, Calif.
(Phone:  [phone])


RELEASE:  91-156

LIGHTNING STORMS DETECTED IN VENUS ATMOSPHERE


    Scientists who studied the planet Venus from data received from the
interplanetary spacecraft Galileo have greatly increased confidence that
there are lightning storms in that planet's atmosphere.

    The science team used the spacecraft's plasma wave instrument to
detect electromagnetic equivalents of thunderclaps most probably
generated by lightning bolts deep in the atmosphere.

    Galileo flew by Venus at a distance of about 10,000 miles in February
1990.  Pictures and other observations of the planet were recorded and
then transmitted to Earth in November 1990, according to plan.  Scientists
have been analyzing the data since then.

    Galileo's primary scientific objective is to conduct close and extended
observations of Jupiter, its atmosphere and its moons, beginning in
December 1995.  Launched in 1989, it was programmed to fly by Venus
and Earth for gravity assists to help it reach Jupiter.  It flew by Earth in
December 1990 and is currently in the Asteroid Belt where it will obtain a
close look at the asteroid Gaspra this October before returning for a second
and final Earth flyby in December 1992.

    Science magazine published this week a collection of eight scientific
articles on Galileo's Venus observations.

- end -




From:       [e-mail] (Bob Deen) 27-SEP-1991 16:17:12.74
To:         [e-mail], [e-mail]
CC:
Subj:    HQ N91-67/NEW MAGELLAN PHOTOS

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 16:16:19.26
Date:    Fri, 27 Sep 1991 14:11:50 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ N91-67/NEW MAGELLAN PHOTOS
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 nasa.nasamail.p:273
From: [e-mail] (HQ NEWSROOM)
Subject:HQ N91-67/NEW MAGELLAN PHOTOS
Date: Fri, 27 Sep 1991 13:41:00 GMT
Message-ID:<KJJB-2971-5081@nasamail>

Paula Cleggett-Haleim
Headquarters, Washington, D.C.                    September 27,
1991
(Phone:  [phone])

Jim Doyle
Jet Propulsion Laboratory, Pasadena, Calif.
(Phone:  [phone])


N91-67

NOTE TO EDITORS:  NEW MAGELLAN IMAGES RELEASED


     Two new images released by NASA today show that Venus is even
more torn by tectonic forces than had been thought before the
Magellan mapping began.  According to Dr. Steve Saunders, Magellan
Project Scientist at NASA's Jet Propulsion Laboratory, Pasadena,
Calif., the planet's dynamic nature is becoming increasingly
evident
with more than 90 percent of Venus now mapped by the Magellan
spacecraft over the past 377 days.  He describes Earth's nearest
planetary neighbor as a planet of searing winds, violent crustal
deformations and giant volcanic eruptions,

     One full-resolution radar image shows the Akna Montes
(mountains) on the west side of the elevated smooth plateau
Lakshmi
Planum (plains), which were formed by extensive volcanic eruptions
and is surrounded by mountains.  The image also shows an impact
crater named Wanda which appears to have been made after the Akna
mountains formed.  The western ridge of the crater has collapsed
onto its floor.

     Another image shows the Danu mountains to the south of the
Lakshmi Planum and a circular volcanic dome 12 miles in diameter.
The southern part of the dome has been deformed by the tectonic
processes which created the mountains.

     "These mountains appear to have been formed by uplift
resulting
from compression," Saunders said.  "All around the high plains,
the
volcanic plains surface is folded and faulted at the base of the
mountains."

     The two black & white images to illustrate this release,
numbers 91-H-746 and 91-H-747, are available to news media
representatives by calling the NASA Broadcast and Audio-Visual
Branch at 202/453-8375.


- end -




From:       [e-mail] (Bob Deen) 27-SEP-1991 16:20:22.84
To:         [e-mail]
CC:
Subj:    HQ 91-157/MINORITY AWARDS

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 16:19:16.89
Date:    Fri, 27 Sep 1991 14:15:53 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ 91-157/MINORITY AWARDS
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:275
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-157/MINORITY AWARDS
Date: Fri, 27 Sep 1991 17:07:00 GMT
Message-ID:<JJJB-2971-5564@nasamail>

FOR RELEASE AT 2 P.M. ET







Ken Atchison
Headquarters, Washington, D.C.                                    September 27, 1991
(Phone:  [phone])                                                             2 P.M. EDT


RELEASE:  91-157

MINORITY CONTRACTOR AND SUBCONTRACTOR OF THE YEAR AWARDED


    Administrator Richard H. Truly today presented the Minority Contractor
and Subcontractor of The Year Awards in recognition of minority businesses that
made outstanding contributions to NASA.  Consolidated Industries, Inc., of
Huntsville, Ala., received the minority contractor award, and Network Solutions
Inc., of Herndon, Va., received the minority subcontractor award.

    These excellence awards were presented as a part of Minority Enterprise
Development (MED) Week established by Presidential Proclamation in 1982 to
give recognition to the nation's minority business owners and their outstanding
contributions to the U.S. economy.  This year, MED Week was celebrated from
Sept. 24 through 27.  NASA has traditionally recognized a minority contractor,
but this year expanded the program to recognize a minority subcontractor.

    Consolidated Industries, Inc., nominated by NASA's George C. Marshall
Space Flight Center, Huntsville, was chosen from a group of seven prominent
minority businesses.  The company was recognized for its valuable contributions
to the operations and maintenance of the facilities of the Marshall Propulsion
Laboratory where Consolidated Industries, Inc., provided quality and responsive
technical support, ensuring the integrity of test results and demonstrating
success in dealing with the potential hazards in the propulsion test
environment.

     Network Solutions Inc., was nominated by IBM Federal Sector Division,
Houston, and selected from 11 outstanding minority firms.  The company was
recognized for providing systems software maintenance and integration support
to the entire institutional computing facilities at NASA's Johnson Space Center
in Houston.  Throughout the history of this subcontract between Network
Solutions Inc. and IBM, there has been a high degree of cooperation between
the two companies at all levels.

- end -




From:       [e-mail] (Bob Deen) 27-SEP-1991 19:22:16.46
To:         [e-mail]
CC:
Subj:    Position Announcement - Chair, Physics Department

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 19:21:51.86
Date:    Fri, 27 Sep 1991 17:18:31 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Position Announcement - Chair, Physics Department
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 sci.astro:11790
From: [e-mail] (Tod Colegrove)
Subject:Position Announcement - Chair, Physics Department
Date: 27 Sep 91 17:57:01 GMT
Message-ID:<[e-mail]>

.......................................................................

Posting this as a favor.  Followup e-mail to:  [e-mail]

......................................................................
The Physics Department at the University of Nevada, Reno is
beginning a major expansion which will entail adding perhaps five
new faculty in the next several years. The first hire in this
program will be the Physics Chair.  The purpose of this letter is
to ask you to help us find the most qualified candidate.I have
enclosed an advertisement which will soon appear in Physics
Today.

We have programs in experimental heavy ion and electron
scattering, and atomic and molecular theory that are firmly
established and productive.  However, we wish to form a new
research group in a distinct area.  We are open as to what this
area should be, but we want a program of the highest quality.  The
University administration is very supportive and will supply the
necessary resources.

The University of Nevada in Reno is the original land grant
institution in the state.  It has been in its present location
for more than one hundred years.  The University has eleven
Colleges and Schools, some twenty five Doctoral programs, and  a
growing enrollment approaching twelve thousand students.  The
State of Nevada is currently the fastest growing state in the
Union.  Reno,the second largest city with a metropolitan
population of 240,000, is situated on the high desert with the
beautiful Sierra Nevada mountain range just to the west within
view. Opportunity for outdoor recreation abounds.  The San
Francisco area with major academic centers, The University of
California at Berkeley and Stanford University is within a four
to five hour drive over interstate highway.

I would be  grateful if you would bring this opening to the
attention of any appropriate candidates.

Thank you for your help.

                                        Sincerely yours,


                                         P. L. Altick
                                         Chair, Search Committee



(Note:  the following is in LaTeX format)
--------------------------------cut here---------------------------------

\begin{center}

{\Large\bf University of Nevada, Reno // Chair, Department of Physics //}

\end{center}

\vspace{0.5in}




The physics department is seeking an accomplished scientist for the
position of Chair, beginning in August,1992.  This position will be
the first hire in a major expansion planned for the next several
years.  The Department currently has an active program in Chemical
Physics involving, with the Chemistry Department, eleven faculty.
Established areas of research include electron and heavy particle
collision  physics  and  theory.   Preference  will  be  given  to  a
candidate  who  will  initiate  and  develop  an  internationally
recognized experimental program in a different area.  Additional
positions and start-up funds will be available for this purpose.
The Department Chair is the chief administrative officer in the
Department and oversees all educational and research activities.
Candidates should submit a curriculum vitae, a proposed research
program, and arrange for at least three letters of reference to be
sent to:

\vspace{0.2in}

\begin{center}
Professor P. L. Altick, Chair, Faculty Search Committee //
Department of Physics/220 //
University of Nevada, Reno,NV 89557-0058 //
[phone] //
\end{center}

\vspace{0.2in}

Applications  received  by  November  l,  1991  will  receive  full
consideration.   However, applications will be accepted until the
position is filled. UNR is an EO/AA employer.


From:       [e-mail] (Bob Deen) 27-SEP-1991 19:22:43.80
To:         [e-mail]
CC:
Subj:    Re: New Mars Mini-Rover Successfully Tested

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 19:22:22.72
Date:    Fri, 27 Sep 1991 17:19:01 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Re: New Mars Mini-Rover Successfully Tested
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 sci.astro:11795
From: [e-mail] (Erann Gat)
Subject:Re: New Mars Mini-Rover Successfully Tested
Date: Fri, 27 Sep 91 21:50:16 GMT
Message-ID:<[e-mail]>

In article <[e-mail]> [e-mail] (Dr. William V. Smith) writes:
>[e-mail] (Erann Gat) writes:
>
>What kind of motors??  Who makes 'em?  How much do they cost?  Operating specs?

The steering motors are Futaba servo motors, the sort one uses in model
airplanes and radio-controlled cars.  I'm not sure about the drive motors,
but I believe they are pretty vanilla electric motors geared down to run about
10 RPM, so they're pretty torquey.

E.




From:       [e-mail] (Bob Deen) 30-SEP-1991 18:44:50.87
To:         [e-mail], [e-mail]
CC:
Subj:    More Magellan GIF Images

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 18:44:26.09
Date:    Mon, 30 Sep 1991 16:41:02 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: More Magellan GIF Images
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 sci.astro:11844
From: [e-mail] (Ron Baalke)
Subject:More Magellan GIF Images
Date: 30 SEP 91 21:53:29
Message-ID:<[e-mail]>

                          =======================
                            MAGELLAN GIF IMAGES
                             September 30, 1991
                          =======================

     I've placed 10 more Magellan images in GIF format at the Ames SPACE
archives.  The images can be retrieved via anonymous ftp from ames.arc.nasa.gov
[128.102.18.3] and are in the pub/SPACE/GIF directory.  These images were
obtained from the newly released Magellan CDROMs and converted to GIF format,
and are in the public domain and can be freely distributed.  Each of the
image is a mosaic, meaning they consist of several orbits of data that has been
pieced together into a single image.  The file naming convention used on the
image is such that the filename indicates the latititude and longitude of the
center of the image.  For example: f15n340.gif is centered at 15 north
latitude, 340 longitude.

     From Magellan CDROM #5:

          f00n357.GIF   178810 bytes
          f05n357.GIF   187561 bytes
          f05s357.GIF   182150 bytes
          f20n351.GIF   191409 bytes
          f20s357.GIF   187361 bytes
          f25s357.GIF   207659 bytes
          f30s357.GIF   182826 bytes
          f35s357.GIF   173046 bytes
          f60s005.GIF   182450 bytes
          f65s001.GIF   175499 bytes

      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen) 30-SEP-1991 18:47:27.54
To:         [e-mail]
CC:
Subj:    Galileo Update - 09/30/91

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 18:47:06.41
Date:    Mon, 30 Sep 1991 16:43:43 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 09/30/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:199
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 09/30/91
Date: 30 SEP 91 19:04:47
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                             GALILEO STATUS REPORT
                               September 30, 199

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     The second of the four planned optical navigation images is currently
being playedback from the spacecraft's tape recorder; about 10% of the image
has been returned.

     Today and tomorrow, spacecraft activities will include continued playback
of the optical navigation image.

      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen) 30-SEP-1991 18:48:59.94
To:         [e-mail]
CC:
Subj:    HQ 91-158/TRULY BUDGET STATEMENT

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 18:48:36.23
Date:    Mon, 30 Sep 1991 16:45:06 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ 91-158/TRULY BUDGET STATEMENT
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:276
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-158/TRULY BUDGET STATEMENT
Date: Fri, 27 Sep 1991 17:55:00 GMT
Message-ID:<VJJB-2971-5708@nasamail>

FOR IMMEDIATE RELEASE








Don Savage
Headquarters, Washington, D.C.                                    September 27, 1991
(Phone:  [phone])


RELEASE:  91-158

NASA ADMINISTRATOR COMMENTS ON FY92 BUDGET


    Richard H. Truly, Administrator of NASA, issued this statement today
following conference committee action on the 1992 appropriation.

    "Yesterday's action of the House/Senate Conference on the FY 1992
NASA appropriation leaves the people of NASA with mixed feelings.  On the
one hand, we are tremendously grateful to those many members on both
sides of the aisle who have worked so hard on our behalf in this extremely
difficult environment and are particularly pleased with the funding for
Space Station Freedom and the very significant percentage increase for
space science.  Nevertheless, we are disappointed that, for the first time in
many years, the total NASA appropriation does not keep up with inflation.
In any event, we will be working very hard to continue to use the dollars
available to provide the American people with a world-class civilian space
and aeronautics research program."

- end -




From:       [e-mail] (Bob Deen) 30-SEP-1991 18:52:03.98
To:         [e-mail]
CC:
Subj:    HQ N91-68/Image of Sun

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 18:51:24.14
Date:    Mon, 30 Sep 1991 16:47:54 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ N91-68/Image of Sun
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:278
From: [e-mail] (HQ NEWSROOM)
Subject:HQ N91-68/Image of Sun
Date: Mon, 30 Sep 1991 13:28:00 GMT
Message-ID:<SJJB-2971-7333@nasamail>

for immediate release








Michael Braukus
Headquarters, Washington, D.C.                                 September 30, 1991
(Phone:  [phone])


EDITORS NOTE:  N91-68

SOFT X-RAY TELESCOPE TAKES FIRST IMAGE OF SUN


    The Soft X-ray Telescope, one of four instruments on the Japanese
Solar-A spacecraft launched Aug. 30, 1991 from Japan's Kagoshima Space
Center, has taken its first soft X-ray image of the Sun.  A prime purpose of
the Solar-A mission is to study high energy phenomena in solar flares
during the current period of maximum solar activity.  The spacecraft was
named Yohkoh after successfully achieving orbit.  Yohkoh means sun-ray or
sun-beam in Japanese.  The Soft X-ray Telescope is the product of
international collaboration between the U.S. and Japan.

    The photograph shows the intricate structures of the X-ray corona,
which extend far above the sun's surface.  The sun's magnetic field
constrains the hot coronal gases along loop-like structures in so-called
"magnetic bottles".  Brightness of the loops reflects temperature and
density of gasses they contain.

    The photograph of the X-ray image is available to the media by calling
202/453-8375           Color:   91-HC-646      B&W:   91-H-750




From:       [e-mail] (Bob Deen) 30-SEP-1991 19:01:48.13
To:         [e-mail]
CC:
Subj:    Daily News in Brief 9/30/91

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Date:    Mon, 30 Sep 1991 16:57:57 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Daily News in Brief 9/30/91
To:      [e-mail]
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X-VMS-News: mipl5 nasa.nasamail.p:282
From: [e-mail] (CHARLES E. REDMOND)
Subject:Daily News in Brief 9/30/91
Date: Mon, 30 Sep 1991 20:46:00 GMT
Message-ID:<CJJB-2971-8483@nasamail>

          This is DAILY NEWS IN BRIEF for 9/30/91
        It is intended for internal agency use only.
     ---------------------------------------------------
     Daily News in Brief is an abstract of media stories
      about the Space Program and other related items.
     ---------------------------------------------------

 . . . What the Fourth Estate is saying about air & space . . .

Washington Post -- 9/30/91
"Astronomy: Shedding Light on Two Mysteries"

"Two cosmic mysteries got a little more down-to-Earth last
week."

The Post reports that it has been 20 years since a background
crackle of X-rays was discovered surrounding us and that ever
since then astronomers have been trying to locate the source.

The paper reports that a team of British and U.S. researchers,
using data from the Rosat Satellite, report that much, and
perhaps even all, of the cosmic background X-ray radiation
comes from quasars.

The article says that the researchers found 39 X-ray emitting
quasars in only one-third of one square degree of sky, and that
if that distribution is typical, it would be enough to account for
almost all of the X-ray background found at key frequencies.

The story also reports that researchers using data from the
Galileo spacecraft's flyby of Venus last year have discovered
that lightning probably exists on the planet.

The paper says the probe's plasma wave detector picked up
nine impulses from the Venusian atmosphere and says
scientists concluded that lightning is the only known source
for signals of the type received.

--------------------------------------------------------
This concludes Daily News in Brief.  Comments and
suggestions are appreciated as is news from your area which
you think should be included here, please fax a copy of the story
to 202/755-3605 (FTS 755-3605) or contact Beth Schmid, Les
Reinertson or Charles Redmond at 202/453-8425 (FTS 453-8425)
or NASAmail: ESCHMID, LREINERTSON, EDITOR or
CREDMOND.




From:       [e-mail] (Bob Deen)  3-OCT-1991 18:53:39.46
To:         [e-mail], [e-mail]
CC:
Subj:    Yet More Magellan Images

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Date:    Thu, 3 Oct 1991 16:49:33 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Yet More Magellan Images
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.general:46
From: [e-mail] (Ron Baalke)
Subject:Yet More Magellan Images
Date: 2 OCT 91 05:21:05
Message-ID:<[e-mail]>

                            ===================
                              MAGELLAN IMAGES
                              October 1, 1991
                            ===================

     The Magellan project released two new images last week (refer to press
release N91-67), and I've placed the two images at the Ames SPACE archives.
These new images are in VICAR format and are obtainable via anonymous ftp from
ames.arc.nasa.gov (128.102.18.3) in the pub/SPACE/VICAR directory as files
akna.img and danu.img.

          akna.img       1,194,270 bytes
          danu.img       1,002,000 bytes

     All of the VICAR images have a corresponding caption files (with a .txt
extension) which contains detailed descriptions of the image.  I've appended
the caption files to the end of this posting.  Make sure you are in binary mode
when transferring the image files, and in ASCII mode when transferring the txt
files.

     I've also converted the image into GIF format, and they can be found in
the pub/SPACE/GIF directory.  The akna1.gif file is a closeup of the crater
called Wanda.

          akna.gif       160,149 bytes
          akna1.gif      360,726 bytes
          danu.gif       220,139 bytes

     The VICAR images can be viewed on an IBM PC computer with the IMDISP
program stored in a zip file called imdisp74.zip, located in the
pub/SPACE/SOFTWARE directory, at the same Ames site.  IMDISP is the same
program distributed with the Voyager and Magellan CDROMs.  Since I am one of
the programmers for IMDISP, I would welcome any feedback on IMDISP, including
any problems encountered with its use or suggestions on improving the program.
I anticipate version 7.7 of IMDISP being released soon, so the filename may be
updated to imdisp77.zip at any time.
-----------------------------------------------------------------------------
akna.txt

akna.img shows a portion of the Akna Mountains, which form the
western edge of Lakshmi Planum.  The crater Wanda has a diameter
of 22 km.  While the crater does not seem deformed by tectonic
activity, material from adjacent mountain areas appear to have
collapsed into it.  The ridge of mountains to the west of Wanda
is about 8 km in width.  The image is about 200 km long and 125
km wide.  It is centered at 71.5N lat., 324 east long.
-----------------------------------------------------------------------------
danu.txt

danu.img is a section of the Danu Mountains, which bound Lakshmi
Planum to the south.  Because of the steep slopes, local relief
in this area (2-3 km) and radar geometry, the fault-bounded
troughs appear to zig-zag through the area while they are likely
straight when viewed from above.  The large volcanic dome is 20
km in diameter and shows deformation and faulting where it has
been affected by the forces that created the Danu Mountains.
This image is 75 km on a side and is centered at 60N lat., 324.5
east long.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 18:55:47.70
To:         [e-mail]
CC:
Subj:    Galileo Update - 10/01/91

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Date:    Thu, 3 Oct 1991 16:51:51 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 10/01/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:200
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 10/01/91
Date: 1 OCT 91 20:47:51
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                              GALILEO STATUS REPORT
                                October 1, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Today,  playback of the second of the planned four optical navigation
images will be continued.

     Tomorrow, the image playback activity will continue and a USO (Ultra
Stable Oscillator) test will be performed.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 18:56:15.43
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 10/01/91

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Date:    Thu, 3 Oct 1991 16:52:09 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 10/01/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:201
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 10/01/91
Date: 1 OCT 91 22:58:31
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                           MAGELLAN STATUS REPORT
                             October 1, 1991

     The Magellan spacecraft is performing nominally.  All starcals (star
calibrations) yesterday were successful, with only one missed star.

     The spacecraft continues to operate under the M1263 command sequence which
includes two 22-minute cooling periods in each orbit, and offpointing of the
solar panels for thermal control.

     Last night there was another spurious shutoff (SSO) of the high power
transmitter, TWTA-A.  This is the 15th SSO.  The on-board fault protection
restored normal operation very quickly and no radar data was lost.

     Later today controllers will begin reconfiguring some of the spacecraft
parameters in preparation for the uplink of command sequence M1277 on Friday.
This sequence will include a radio science experiment to be performed on
Saturday, Oct. 5.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 18:56:38.72
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 09/30/91

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Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ;  3-OCT-1991 18:56:05.95
Date:    Thu, 3 Oct 1991 16:52:33 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 09/30/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:202
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 09/30/91
Date: 1 OCT 91 22:57:01
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                        MAGELLAN STATUS REPORT
                          September 30, 1991

     Magellan spacecraft performance continues to be excellent.   One starcal
(star calibration) was unsuccessful over the weekend.  The star scanner
background filter activity has also increased.

     All spacecraft temperatures remain in the acceptable range, rising less
than a degree on the Bay 7.  No commands were sent to the spacecraft over the
weekend.

     Magellan has now completed 2686 mapping orbits of Venus.  In the present
mapping mode, each orbit returns an image swath which extends from just below
the equator to the South Pole.  Each swath is about 14 miles wide and 6000
miles long.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 18:58:18.28
To:         [e-mail]
CC:
Subj:    Galileo Update - 10/02/91

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Date:    Thu, 3 Oct 1991 16:54:24 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 10/02/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:203
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 10/02/91
Date: 2 OCT 91 19:42:23
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109.  TELEPHONE [phone]

                     GALILEO MISSION STATUS
                         October 2, 1991

     The Galileo spacecraft is more than 223 million miles from
Earth, making the round-trip communication time about 40 minutes.
It is more than 199 million miles from the Sun, and 11.75 million
miles (straight line) from Gaspra.  Speed in orbit is 36,662
miles per hour.

     The spacecraft is operating normally in the dual-spin mode,
with the spinning section rotating at 3.15 rpm and the spin axis
pointed toward the Earth, approximately 25 degrees away from the
Sun.  It is transmitting coded telemetry at 40 bits per second
over the low-gain antenna.

     Galileo's second optical navigation image, shuttered Friday
night, is being played back through an onboard computer memory in
installments.  By the end of today's playback, about 20% of this
image should have been received through the Deep Space Network by
the navigation team.

     The flight team members are preparing for and testing
various special activities needed in the Gaspra encounter, and
are also preparing Galileo's next trajectory correction maneuver,
planned for October 9, a week from today.

                              #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 18:59:13.30
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 10/02/91

Return-Path: <[e-mail]>
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Date:    Thu, 3 Oct 1991 16:55:19 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 10/02/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:204
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 10/02/91
Date: 2 OCT 91 19:43:38
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109. TELEPHONE [phone]

                     MAGELLAN STATUS REPORT
                         October 2, 1991

     The Magellan spacecraft is performing normally. All star
calibrations Tuesday were successful. Temperatures have risen
slightly, as expected, in this period.

     The spacecraft continues to operate under a command sequence
which includes two 22-minute cooling periods in each orbit, and
offpointing of the solar panels for thermal control.

     Controllers are preparing for the uplink of a new command
sequence on Friday. The sequence will include a radar science
experiment to be performed on Saturday, October 5.

     Earlier this week, there was a spurious shutoff of the high
power transmitter. It was the 15th such shutoff. The on-board
fault protection restored normal operation very quickly and no
radar data was lost.

     In the present mapping mode, with two hide periods for
thermal control, each orbit returns an image which extends from
just south of the equator to the south pole. Each swath is about
14 miles wide and 6,000 miles long.

                              _____

      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 19:02:05.62
To:         [e-mail]
CC:
Subj:    Hubble Space Telescope Monthly Status Report

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Date:    Thu, 3 Oct 1991 16:58:06 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Hubble Space Telescope Monthly Status Report
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:205
From: [e-mail] (Ron Baalke)
Subject:Hubble Space Telescope Monthly Status Report
Date: 2 OCT 91 22:30:00
Message-ID:<[e-mail]>

Forwarded from the Spacelink BBS

                       HST MONTHLY STATUS REPORT
                           September, 1991

      The Hubble Space Telescope (HST) continued to operate normally
 under four-gyro control. All scientific instruments except the Goddard
 High Resolution Spectrograph (GHRS) continue to produce science data.
 The GHRS Science Data Formatter (SDF) interface continued to exhibit
 periodic anomalous behavior that has resulted in data losses and
 program interruptions.  A test scenario has been developed to exercise
 the SDF over varying orbital thermal conditions to characterize the
 problem.  The testing will be able to run in parallel with other
 instrument programs and thereby not impinge on observational
 efficiency.  The current efficiency is running approximately 30 per
 cent (ideal level is 35%) and improving as each instrument completes
 verification procedures and is able to define requirements better for
 observing parameters and timing.

      The scientific community is enthusiastic over the data that HST is
 producing, according to project officials.  The latest request for
 proposals for Cycle Two observing (July, 1992-July, 1993) produced more
 approximately 500 submissions from 26 different countries.  Of those
 submissions, eight were proposals to do research on non-proprietary
 data from HST's first year of operations.

      Planning for the 1993 servicing mission is well underway.
 Schedules and contracts are in place for the delivery of the Wide
 Field/Planetary Camera II (WF/PCII), Corrective Optics Space Telescope
 Axial Replacement (COSTAR), rate gyro assemblies and solar arrays.
 Several joint reviews were held during the month with the European
 Space Agency (ESA), and modifications being made to the (ESA) Solar
 Array II should reduce many of the causes of jitter that HST currently
 experiences, officials said.

 -END-
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 19:03:40.35
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 10/03/91

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ;  3-OCT-1991 19:03:17.21
Date:    Thu, 3 Oct 1991 16:59:45 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 10/03/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:206
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 10/03/91
Date: 3 OCT 91 19:11:33
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                            MAGELLAN STATUS REPORT
                              October 3, 1991

     The Magellan spacecraft is performing nominally.  All starcals (star
calibrations) and desats (desaturations of the reaction wheels) yesterday were
successful.

     Spacecraft temperatures remain in the acceptable range. The DMS-B (Data
Management Subsystem-B) tape recorder head now reaches 33.5 degrees C, and the
CDS (Command Data Subsystem) peaks at 54 degrees C.

     Spacecraft controllers updated the Kalman gains yesterday and will perform
a memory readout today to determine the exact time of the two most recent TWTA
(high power transmitter) SSO's (Spurious Shutoffs).  Late tomorrow they will
uplink the M1277 command sequence.

     The new 2-week command sequence is similar to what we have been performing
since early September, but uses two 25 minute cooling periods in each orbit.
This shortens the radar mapping swaths to about 54% of their normal length.
Mapping begins at about 6 degrees north latitude and extends to the South Pole.
Magellan has now completed 2706 mapping orbits, 1030 since the start of
Cycle 2.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 19:04:08.20
To:         [e-mail]
CC:
Subj:    Galileo Update - 10/03/91

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ;  3-OCT-1991 19:03:45.16
Date:    Thu, 3 Oct 1991 17:00:07 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 10/03/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:207
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 10/03/91
Date: 3 OCT 91 19:09:19
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                           GALILEO STATUS REPORT
                             October 3, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Today, continued playback of the second optical navigation image will be
performed.

     Tomorrow, continued playback of the image is planned.  Also, an imaging
instrument (SSI) memory readout is scheduled to verify the health status of the
SSI.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 19:06:45.38
To:         [e-mail]
CC:
Subj:    Galileo Update #2 - 10/03/91

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ;  3-OCT-1991 19:06:20.76
Date:    Thu, 3 Oct 1991 17:02:49 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update #2 - 10/03/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:208
From: [e-mail] (Ron Baalke)
Subject:Galileo Update #2 - 10/03/91
Date: 3 OCT 91 22:11:26
Message-ID:<[e-mail]>

                                  GALILEO
                      MISSION DIRECTOR STATUS REPORT
                                POST-LAUNCH
                      September 27 - October 3, 1991

SPACECRAFT

1.  The second of the planned four optical navigation images in support of the
Gaspra encounter was taken on September 28.  The image was stored on the
spacecraft's tape recorder (DMS) for playback over the next two plus weeks.

2.  Playback of the second optical navigation image was performed on
September 28, 30 and October 1, 2 and 3 via the DMS MRO (Memory Readout)
activity.  Playback is proceeding well with more than 40 percent of the image
retrieved; full image retrieval is expected by October 12.

3.  Two imaging subsystem (SSI) memory readouts were performed on September 28
and 30.  The memory readouts are done routinely to verify the health status of
the SSI.

4.  A NO-OP command was sent of September 30 to reset the command loss timer to
288 hours, its planned value for this mission phase.

5.  A command was sent on October 1 to readout the CDS (Command Data Subsystem)
attitude control alert-code buffer to determine when autonomous HGA (High Gain
Antenna) pointing corrections occur.

6.  The AC/DC bus imbalance measurements exhibited some change.  The AC
measurement increased 3 DN and now reads near 45.03 volts; the DC measurement
dropped 8 DN and now reads near 14.6 volts.  All other power telemetry and
subsystem telemetry are normal.

7.  The Spacecraft status as of end of day October 3 was as follows:

    a)  System Power Margin -  66 watts
    b)  Spin Configuration - Dual-Spin
    c)  Spin Rate/Sensor - 3.15 rpm/star scanner
    d)  Spacecraft Attitude is Earth pointed; Sun Point Angle
        - approximately 25 degrees (sun lagging) plus or
        minus 0.3 degree
    e)  Downlink telemetry rate/antenna-40 bps (coded)/LGA-1
    f)  General Thermal Control - all temperatures within
        acceptable range
    g)  RPM Tank Pressures - all within acceptable range
    h)  Orbiter Science- all powered on except PLS, PPR and
        NIMS
    i)  Probe/RRH - powered off, temperatures within
        acceptable range
    j)  CMD Loss Timer Setting - 288 hours
        Time To Initiation - 210 hours


GDS (Ground Data Systems):

1.  The DSN (Deep Space Network) reports that all Mission Readiness Tests
(MRTs) for the Gaspra encounter have been successfully completed.  Project
Ground Data (GDS) tests were conducted in conjunction with the MRTs to
demonstrate end-to-end data system capabilities.

2.  The DSN reports that the ability to recover telemetry from open loop
recordings of the Galileo downlink by the DSCC Spectrum Processor (DSP) was
verified by analysis of recordings by the Radio Science Team.  This will be
used as a backup during Gaspra closest approach to ensure collection of
engineering telemetry.


TRAJECTORY

     As of noon Thursday, October 3, 1991, the Galileo Spacecraft status was
as follows:

        Distance from Earth          224,406,590 miles
        Distance from Sun            199,536,900 miles (2.14 AU)
        Heliocentric Speed           36,595 miles per hour
        Distance from Gaspra         11,315,660 miles
        Round Trip Light Time        40 minutes, 0 seconds


SPECIAL TOPICS

1.  As of October 3, 1991, a total of 5832 real-time commands have been
transmitted to Galileo.  Of these, 1917  have been pre-planned in the sequence
design and 3915 were not.  In the past week, 4 real time commands were
transmitted; of these one was pre-planned. In addition 1903 mini-sequence
commands have been transmitted since March 1991. Major commanding activities
this week included resetting the command loss timer, and reading out the CDS
attitude control alert code buffer.

2.  The TCM-11 (Trajectory Correction Maneuver 11) design was approved by the
Project on October 2.  This maneuver consists of two burn segments, i.e., a
single positive Z and a single lateral burn.  The P1A thruster and L thrusters
will be used.  The total FV expected is about 0.35 m/sec.  The maneuver is
scheduled for October 9.

3.  The second training exercise of the uplink process which will be required
to generate "tweaks" to the scan platform pointing for Gaspra was completed
this week.  The test successfully demonstrated the ability to generate DAC
(Delayed Action Commands) and sequence tweak updates per the required worst
case timelines for Gaspra.  A test report memo will be distributed documenting
detailed findings and resulting actions.

4.  The German Space Operations Center (GSOC) reports the Galileo GSOC
Operations Plan has been signed.  The Operations Plan which is part of the
Galileo Space Flight Operations Plan (SFOP) details the GSOC Operations Team
organization and approach to support of the Galileo Cruise Science mission
phase.  GSOC cruise science support will begin as early as late May 1992
pending deploy of the High Gain Antenna (HGA).
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  3-OCT-1991 19:14:30.40
To:         [e-mail]
CC:
Subj:    Daily News in Brief 10/1/91

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Daily News in Brief 10/1/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:284
From: [e-mail] (CHARLES E. REDMOND)
Subject:Daily News in Brief 10/1/91
Date: Tue, 1 Oct 1991 20:39:00 GMT
Message-ID:<UJJB-2972-2531@nasamail>

          This is DAILY NEWS IN BRIEF for 10/1/91
        It is intended for internal agency use only.
     ---------------------------------------------------
     Daily News in Brief is an abstract of media stories
      about the Space Program and other related items.
     ---------------------------------------------------

 . . . What the Fourth Estate is saying about air & space . . .

Christian Science Monitor -- 10/1/91
"Fiscal Realism at NASA"

(an editorial, portions of which are abstracted herewith...)

"For years, the handwriting on the wall at National
Aeronautics and Space Administration headquarters has
conveyed a simple message -- less is more.  Fiscal reality
excludes budget-hogging projects.  Space scientists would
prefer a variety of smaller missions to a few grandiose
programs.

"Senior NASA officials have finally seen the message...

"NASA is bowing to the inevitable.  Failures in the past half
decade...highlight the risks of putting too many space effort
eggs in a few baskets...

"Space station Freedom should be scrapped unless a new
compelling reason can be found to carry it forward."

          ------------------------

New York Times -- 10/1/91
"Can Mars Be Made Hospitable to Humans"
By William Broad

"Freezing cold and forbidding, bereft of such amenities as a
breathable atmosphere, more than a million miles from Earth,
Mars might nonetheless become a hot vacation spot with just a
little bit of, well, terraforming."

The Times says that this is the dream of a growing number of
seemingly down-to-Earth scientists who ponder the possibility
of using advanced technologies to make Mars' environment
palatable to Earthlings.

The Times quotes NASA planetary atmosphere expert, Dr.
Chris McKay, as saying "a green Mars is better than a red
Mars."  The paper says that skeptics dismiss the goal as
absurdly expensive and ethically misguided but that some
scientists argue that a spare planet might be handy.

The story recounts one scenario proposed whereby the thin
Martian atmosphere would be seeded with man-made
chemicals, trapping some of the Sun's rays in an artificially-
induced greenhouse effect and causing some of the trapped
heat to melt the polar ice caps, further thickening the
atmosphere.

The paper says these processes might take as long as several
dozen to a few hundred thousand years but might be worth the
wait.  The paper quotes NASA biospheric research manager
Mel Averner as saying "many of the great cathedrals took
three or four hundred years to build.  Mars terraforming
might be something like that.  It's not an impossible time
scale."

The story says that based on some preliminary work done by
NASA and others, the prospects are at least worth continuing
for the reason that it might lead to another planet capable of
supporting human life.

          ------------------------

Philadelphia Inquirer -- 9/29/91
"Six Moons of Neptune Given Names"

"Six moons of Neptune discovered by the Voyager 2 spacecraft
in 1989 have been named after water nymphs and children and
lovers of the mythological Greek sea god Poseidon, an official
said Friday."

The story says the planet is named after the Roman god of the
sea -- known to ancient Greeks as Poseidon.  The story says the
names are: Naiad and Galatea, both water nymphs; Thalassa
and Larissa, both lovers of Poseidon; Proteus, a sea god; and
Despina, a daughter.
--------------------------------------------------------
This concludes Daily News in Brief.  Comments and
suggestions are appreciated as is news from your area which
you think should be included here, please fax a copy of the story
to 202/755-3605 (FTS 755-3605) or contact Beth Schmid, Les
Reinertson or Charles Redmond at 202/453-8425 (FTS 453-8425)
or NASAmail: ESCHMID, LREINERTSON, EDITOR or
CREDMOND.




From:       [e-mail] (Bob Deen)  3-OCT-1991 19:25:57.11
To:         [e-mail]
CC:
Subj:    HQ 91-161/Key Appointments (resent)

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Date:    Thu, 3 Oct 1991 17:22:02 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ 91-161/Key Appointments (resent)
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 nasa.nasamail.p:291
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-161/Key Appointments (resent)
Date: Thu, 3 Oct 1991 14:58:00 GMT
Message-ID:<LJJB-2972-5844@nasamail>

for immediate release







Ken Atchison
Headquarters, Washington, D.C.                                         October 3, 1991
(Phone:  [phone])


RELEASE:  91-161

NASA ADMINISTRATOR ANNOUNCES KEY APPOINTMENTS


    NASA Administrator Richard H. Truly announced today several key
appointments:

    Arnold D. Aldrich, currently the Associate Administrator for the
Office of Aeronautics, Exploration and Technology, has been selected as
Associate Administrator for the recently announced Office of Space Systems
Development.

    Aldrich brings a wealth of knowledge in managing the development of
large projects as a result of his many years of experience in various
assignments, including the Space Shuttle program.  He was instrumental in
providing the program leadership in the safe and successful return to flight
of the Space Shuttle.

    Richard H. Petersen, Director of the Langley Research Center,
Hampton, Va., will come to Headquarters to become the Associate
Administrator for the Office of Aeronautics and Space Technology, formerly
the Office of Aeronautics, Exploration and Technology.

    Petersen has been the Director of the Langley Research Center since
January 1985.  He also served as Deputy Center Director from 1980-85.
Prior to coming to Langley, Petersen was Chief of the Aerodynamics
Division at the Ames Research Center, Moffett Field, Calif.  Petersen joined
the National Advisory Committee for Aeronautics, NASA's predecessor
agency, at Ames in 1957.

    William B. Lenoir, currently the Associate Administrator for the Office
of Space Flight, will continue to head that Office, with its new focus on
space flight operations.


- more -
- 2 -


    Charles T. Force will remain in his current assignment as the
Associate Administrator for the Office of Space Communications, formerly
named the Office of Space Operations.

    NASA field center reporting assignments will remain unchanged, and
transition plans will be arranged as soon as possible.

    In announcing these appointments, Truly said, "NASA is extremely
fortunate to have such outstanding senior executives ready to take on these
challenging new responsibilities.  With the creation of the Office of Space
Systems Development and these key appointments, NASA will be better
aligned to execute the development and operation of Space Station
Freedom as well as other new capability development projects, and to focus
more directly on efficient space operations.  These management changes
will also ensure a strong future in NASA's aeronautics research and space
technology efforts."
- end -




From:       [e-mail] (Bob Deen)  3-OCT-1991 19:29:12.31
To:         [e-mail], [e-mail]
CC:
Subj:    HQ 91-159/X-29 RESEARCH

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From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: HQ 91-159/X-29 RESEARCH
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 nasa.nasamail.p:293
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-159/X-29 RESEARCH
Date: Thu, 3 Oct 1991 15:24:00 GMT
Message-ID:<CJJB-2972-5901@nasamail>

FOR IMMEDIATE RELEASE







Drucella Andersen
Headquarters, Washington, D.C.                                          October 3, 1991
(Phone:  [phone])

Don Haley
Ames-Dryden Flight Research Facility, Edwards, Calif.
(Phone:  [phone])


RELEASE:  91-159

NASA/USAF X-29 COMPLETES FLIGHT RESEARCH PROGRAM

    The X-29, an unusual research aircraft built to investigate the
feasibility of a forward swept wing design, made the last flight in its high
angle of attack research program on Sept. 30 at NASA's Ames-Dryden Flight
Research Facility, Edwards, Calif.

    The X-29 is being hailed as one of the most successful "X-planes" in
history.  The flight test program, which began in December l984, not only
recorded the most flights by an X-series aircraft (374), but also proved that
multiple advanced technologies could be integrated into a single piloted
research aircraft.

    The unusual configuration of forward swept wings coupled with
movable canards reduces aerodynamic drag by up to 20 percent at
transonic speeds, according to Ames-Dryden X-29 Project Manager Gary
Trippensee.  He also noted that the design gives pilots excellent control
response up to 45 degrees angle of attack.   Angle of attack is an
engineering term that describes the angle of an aircraft's body and wings
relative to its flight path.

    At angles of attack up to 45 degrees, the X-29's forward swept wing
has better-than-expected control and maneuverability.  Designing these
same high angle of attack qualities into new high-performance aircraft
could give military pilots an advantage in situations where they need
greater maneuverability.

    NASA research pilot Steve Ishmael, who flew the X-29 on its first
NASA flight, believes data from the program can be important to designers
of future aircraft.
- more -
- 2 -


    "The X-29 has shown that a forward swept wing on a transonic fighter
will have at least the equivalent performance of a rearward swept wing --
maybe better in certain areas -- and it can be an excellent design
alternative in high performance airplanes," said Ishmael.  "When an aircraft
is being designed, the location of the wings influences the design of the
rest of the aircraft.  The forward swept wing presents a greater design
latitude and there's no penalty to pay in performance."

    The first X-29 completed 254 research missions between Dec. 14,
l984 and Dec. 8, l988 to measure the plane's performance and handling
qualities.  The second aircraft began flying in May 1989.  It flew up to 67
degrees angle of attack to investigate handling and control characteristics.
This second phase of research also evaluated the military utility of the
forward swept wing-canard design.

    The program also studied other advanced technologies such as
variable camber flaperons (combined flaps and ailerons), rear-mounted
strake flaps for pitch control and an advanced flight control system to
integrate control surface functions for stable flight.

    Proposals to build the two X-29 research aircraft were issued in l977
by the Defense Advanced Research Projects Agency and the Air Force Flight
Dynamics Laboratory (now the Wright Laboratory), Wright-Patterson AFB,
Ohio.  Grumman Aircraft Corp., Bethpage, N.Y., won the $87 million
contract in December l981.

    Twenty-one pilots flew the X-29s during the joint NASA-Air Force
program:  seven from NASA, 10 from the Air Force, one from the U.S. Navy
and three from Grumman.  The Air Force's Wright Laboratory managed the
program.  Flight research was conducted at Ames-Dryden with the
participation of the Air Force Flight Test Center, Edwards AFB, and
Grumman.  The aircraft are in storage at Dryden for the present time.

-end-

NOTE TO EDITORS:  Video of the X-29 flight test program is available to
media representatives by calling 202/453-8594.  Still photos also are
available to media representatives by calling 202/453-8375.

Color:      91-HC-652          B&W:   91-H-756
               91-HC-653                     91-H-757





From:       [e-mail] (Bob Deen)  3-OCT-1991 19:39:22.46
To:         [e-mail]
CC:
Subj:    Compton GRO Monthly Status Report

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Date:    Thu, 3 Oct 1991 17:35:27 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Compton GRO Monthly Status Report
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 sci.astro:11855
From: [e-mail] (Ron Baalke)
Subject:Compton GRO Monthly Status Report
Date: 1 OCT 91 22:23:27
Message-ID:<[e-mail]>

Forwarded from the Spacelink BBS

                  ARTHUR HOLLY COMPTON GAMMA RAY OBSERVATORY
                            MONTHLY STATUS REPORT
                              September 30, 1991

   NASA's Compton Gamma Ray Observatory (Compton Observatory) spacecraft
 and its instruments are performing well.

   On September 23, 1991, NASA Headquarters announced that the Gamma Ray
 Observatory has been renamed the Arthur Holly Compton Gamma Ray
 Observatory in honor of the Nobel Prize-winning American physicist, Dr.
 Arthur Holly Compton.

   Recent science results from all four instruments aboard the Compton
 also were detailed during the September 23 NASA Headquarters press
 conference.

   Among the most significant findings according to Dr. Neil Gehrels,
 project scientist, Goddard Space Flight Center, Greenbelt, MD, were the
 results announced by NASA Marshall Space Flight Center's Dr. Gerald
 Fishman. Dr. Fishman is the principal investigator for the Burst and
 Transient Source Experiment (BATSE). BATSE is designed to study the
 mysterious phenomenon of gamma-ray bursts.

   Before the mission, the prevailing belief was that the bursts come
 from neutron stars which are concentrated in the disc of the galaxy.
 However, BATSE has determined that they come uniformly from all
 directions throughout the sky, and therefore, cannot come from neutron
 stars.

    The BATSE results indicate that either the bursts come from some
 exotic small objects very near to our solar system or that they come
 from some extremely powerful distant objects located well beyond our
 galaxy.

   Goddard's Energetic Gamma Ray Experiment Telescope (EGRET) outlined
 the discovery of a strong gamma-ray signal from the distant quasar
 3C279. Goddard's Dr. Carl Fichtel, principal investigator, said that
 this quasar is about six billion light years away and is the most
 distant gamma-ray source ever detected.

   "The scientific excitement here is that the energy released in these
 gamma rays is more than a thousand times the energy emitted from our
 galaxy at all wavelengths combined," Gehrels said.

   The Oriented Scintillation Spectrometer Experiment (OSSE) captured
 the best ever observation of the glow of gamma radiation from the disk
 of our galaxy caused by matter and antimatter annihilating each other.

   This scientific result does not fit any of the theoretical models,
 according to OSSE Principal Investigator Dr. James Kurfess, Naval
 Research Laboratory, Washington, DC.

   The Imaging Compton Telescope (COMPTEL) images were significant not
 only for what they showed, but also for what they didn't show. The
 images presented by COMPTEL Principal Investigator Volker Schoenfelder,
 Max Planck Institute, Germany, taken at the same time, of the same
 source, as those of the high-energy sensitive EGRET, did not show the
 mysterious source, Geminga, evident in the EGRET image. COMPTEL views
 the gamma-ray sky at intermediate energies.

   Upcoming targets for scientific observation include the galaxy
 Fairall 9 and the Quasar 3C273.

   The Goddard flight operations team reports that the observatory is
 functioning well, and data from tape recorder A continue to be analyzed
 for patterns in recurring bit errors. The current rate of errors does
 not seriously affect science data.  Science is being performed without
 interruption using both the A tape recorder and the redundant B tape
 recorder.

   The Compton Observatory is managed and operated by Goddard, for
 NASA's Office of Space Science and Applications.

 -END-
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  4-OCT-1991 18:46:43.59
To:         [e-mail]
CC:
Subj:    Ulysses Update - 10/04/91

Return-Path: <[e-mail]>
Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ;  4-OCT-1991 18:46:16.34
Date:    Fri, 4 Oct 1991 16:42:35 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Ulysses Update - 10/04/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:209
From: [e-mail] (Ron Baalke)
Subject:Ulysses Update - 10/04/91
Date: 4 OCT 91 16:26:12
Message-ID:<[e-mail]>

Forwarded from:
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109. TELEPHONE [phone]

                     ULYSSES MISSION STATUS
                         October 4, 1991

     All ground operations, tracking and science experiment
commanding of the Ulysses spacecraft are proceeding normally.
Routine Earth-pointing maneuvers continue to be performed about
every other day.  The next set of maneuvers are scheduled for
Saturday, Oct. 5 and Monday, Oct. 7.

     The spacecraft is about 772 million kilometers (480 million
miles) from Earth, traveling at a heliocentric velocity of
approximately 61,000 kilometers per hour (39,000 miles per hour).
Ulysses is on a direct course to Jupiter, with about 96 million
miles to travel before reaching the gaseous giant in early
February 1992.

                              #####
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  4-OCT-1991 18:50:53.68
To:         [e-mail]
CC:
Subj:    Ulysses Update - 09/30/91

Return-Path: <[e-mail]>
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Date:    Fri, 4 Oct 1991 16:43:44 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Ulysses Update - 09/30/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:210
From: [e-mail] (Ron Baalke)
Subject:Ulysses Update - 09/30/91
Date: 4 OCT 91 16:23:19
Message-ID:<[e-mail]>

Forwarded from Peter Beech, Ulysses Operations Manager

        SUBJECT:   ULYSSES MISSION OPERATIONS REPORT No. 58

        PERIOD: 24th September to 30th September 1991

        1.  MISSION OPERATIONS

                 Tape recorder operations based on recovering data
                 acquired during the out of view periods are continuing on
                 a routine scheduled basis.

                 Experiment reconfigurations have been carried out as
                 required.

                 An average of 98.02 % data recovery was achieved during
                 this reporting period.

                 The percentage of data acquired as a function of bit rate
                 is as follows:

                 1024 bps 55.32 %
                  512 bps 42.61 %

                 Routine Earth pointing manoeuvres were performed on 25th,
                 27th  and 29th September.

        2.  SPACECRAFT STATUS


                 POWER

                 Nominal.

                 Estimated S/C power consumption 267 watts.

                 AOCS

                 Nominal.

                 TTC

                 The spacecraft is currently configured with receiver 2 as
                 the prime unit fed via the high gain antenna and with
                 receiver 1 as backup fed through the low gain antenna
                 (LGA-F).  The downlink is currently via EPC1/TWTA1.

                 The 34 meter ground stations are in use to support TTC
                 operations.

                 Received downlink level -146 dBm.(34 meter) X-band.

                 (Variations of up to 10 db. can be expected as a result
                 of station antenna in use, local weather conditions, and
                 spacecraft antenna off-pointing).

                 Received uplink level -131.0 dBm.

                 DATA HANDLING

                 Nominal.

                 THERMAL

                 Nominal.

        3.       FLIGHT DYNAMICS

                 Solar Aspect   The angle increased from 6.00 on
                 Angle (deg.)   24th September to 6.73 on 30th September.

                 Sun-Probe-Earth  The angle increased from 5.64 on
                 Angle (deg.)     24th September to 6.51 on 30th September.

                 Spin Rate               4.984 rpm.

        4.       ORBITAL DATA

                 Data taken at 09:00 PDT. on 30th September.
                 Distance from Earth                771,832,967 km.
                 Distance from Jupiter              165,769,222 km.
                 Velocity relative to the Sun            63,673 km/hr.
                 Velocity relative to the Earth         119,722 km/hr.

        5.       PLANNED OPERATIONS

                 Routine data gathering operations will continue together
                 with experiment reconfigurations as required.

                 Routine Earth pointing manoeuvres will be carried out
                 on 1st, 3rd and 5th October.

        6.       GROUND SEGMENT

                 The ground segment performed nominally during the
                 reporting period.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  4-OCT-1991 18:51:30.04
To:         [e-mail]
CC:
Subj:    Galileo Update - 10/04/91

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Date:    Fri, 4 Oct 1991 16:44:10 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Galileo Update - 10/04/91
To:      [e-mail]
X-Vmsmail-To: DADI

X-VMS-News: mipl5 jpl.spacecraft:211
From: [e-mail] (Ron Baalke)
Subject:Galileo Update - 10/04/91
Date: 4 OCT 91 20:20:00
Message-ID:<[e-mail]>

Forwarded from William O'Neil, Galileo Project Manager

                           GALILEO STATUS REPORT
                             October 4, 1991

     The Galileo spacecraft is operating normally in the dual-spin mode and
transmitting coded telemetry at 40 bps.

     Today,  playback of the second optical navigtion image will continue.
Also, an imaging instrument (SSI) memory readout will be performed to verify
the health status of the SSI.

     Saturday, the image playback activity will continue .

     Sunday, no spacecraft activities are scheduled.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.



From:       [e-mail] (Bob Deen)  4-OCT-1991 19:00:10.29
To:         [e-mail]
CC:
Subj:    HQ 91-163/LIFE SCIENCES

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Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ;  4-OCT-1991 18:59:33.39
Date:    Fri, 4 Oct 1991 16:55:59 PDT
From:    [e-mail] (Bob Deen)
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Subject: HQ 91-163/LIFE SCIENCES
To:      [e-mail]
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X-VMS-News: mipl5 nasa.nasamail.p:298
From: [e-mail] (HQ NEWSROOM)
Subject:HQ 91-163/LIFE SCIENCES
Date: Fri, 4 Oct 1991 16:59:00 GMT
Message-ID:<VJJB-2972-8164@nasamail>

FOR 2 P.M. ET RELEASE TODAY







Paula Cleggett-Haleim
Headquarters, Washington, D.C.                                                   October 4, 1991
(Phone:  [phone])


RELEASE:  91-163

NASA SELECTS CENTERS FOR LIFE SCIENCES RESEARCH


     Today, NASA selected two new institutions to serve as NASA Specialized
Centers of Research and Training (NSCORT), continuing a program dedicated to
the space life sciences begun in 1990.  The centers will be located at the
University of California, San Diego, and Lawrence Berkeley Laboratories,
Berkeley, Calif.  NASA plans to award each of the centers approximately $1
million a year for 5 years.

     In addition, a foreign center, the University of Giessen, Federal Republic of
Germany, was tentatively selected as an NSCORT, pending full endorsement and
financial support of the proposed effort by the appropriate elements of the
German government.  NASA selects foreign institutions for participation in its
space science programs but does not directly fund them.

     Dr. Arnauld Nicogossian, Director of NASA's Life Sciences Division, made the
selections based on peer reviews conducted under the auspices of the American
Institute of Biological Sciences, site visits and comprehensive documentation
reviews.

     The program will be an integral part of the division's research and analysis
activities to advance basic knowledge and create effective ways for solving
specific problems in space life sciences.

     Chosen from 13 applicants, each institution will address one of two research
areas, exobiology or radiation health.  The program is established exclusively for
ground research and analysis.

     The directors, the institutions, the type of selection and the area of research
are:
o Exobiology
Dr. Stanley L. Miller, University of California, San Diego.
o Radiation Health
Dr. Aloke Chatterjee, Lawrence Berkeley Laboratory, Berkeley, Calif.;
Dr. Jrgen Kiefer, University of Giessen, Germany (tentatively selected).

- end -




From:       [e-mail] (Bob Deen)  4-OCT-1991 19:20:47.92
To:         [e-mail], [e-mail]
CC:
Subj:    Magellan Update - 10/04/91

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Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ;  4-OCT-1991 19:20:25.58
Date:    Fri, 4 Oct 1991 16:45:30 PDT
From:    [e-mail] (Bob Deen)
Message-Id: <[e-mail]>
Subject: Magellan Update - 10/04/91
To:      [e-mail], [e-mail]
X-Vmsmail-To: DADI,CCM

X-VMS-News: mipl5 jpl.spacecraft:212
From: [e-mail] (Ron Baalke)
Subject:Magellan Update - 10/04/91
Date: 4 OCT 91 21:54:08
Message-ID:<[e-mail]>

Forwarded from Anthony Spear, Magellan Project Manager

                             MAGELLAN STATUS REPORT
                               October 4, 1991

     The Magellan spacecraft is performing nominally.  All starcals (star
calibrations) and desats (desaturations) yesterday were successful.

     Spacecraft temperatures continue creep upward, as expected in this phase
of Cycle 2.  The DMS-B (Data Management Subsystem) tape recorder head now
reaches 34.6 degrees C, about one degree above yesterday's peaks.

     Spacecraft controllers uploaded the M1277 command sequence late yesterday.
It will begin execution this afternoon.  They also performed a memory readout
to determine the exact time of the two most recent TWTA (high power
transmitter) SSO's (Spurious Shutoff's).

     The new command sequence is a one-week sequence which uses two 25 minute
cooling periods in each orbit.  This shortens the radar mapping swaths to
about 54% of their normal length.  Mapping begins at about 6 degrees north
latitude and extends to the South Pole.

     The results of the Magellan mission continue to reach the science
community and the general public.  Jeff Plautt gave a lecture Sept. 26th to the
San Fernando Chapter of the American Society of Materials, and Jeff Miller
spoke on Magellan at the IEEE International SOI Conference in Vail, Colorado on
October 1st.

     The distribution of mosaicked photo-products is progressing.  227 MIDRs
(Mosaicked Image Data Record) have been shipped by DMAT (Data Management and
Archive Team) to the National Space Science Data Center and the Regional
Planetary Image Facilities.

     Digital compact disks, containing mosaicked images from the first four
months of Cycle 1 have been delivered to the Radar Investigations Group.  Most
of the 22 CD-ROMs will be approved for distribution to scientists in October.
The next 26 CD-ROMS, containing the second four months of images, will be
delivered in late 1991 and early 1992.  Ten CD-ROMs containing the altimetry and
radiometer data will start production in October.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|     Ron Baalke         | [e-mail]
     | | | |  __ \ /| | | |     Jet Propulsion Lab |
  ___| | | | |__) |/  | | |__   M/S 301-355 Telos  | For every rule, there is
 /___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | an exception. There is no
 |_____|/  |_|/       |_____|/                     | exception to this rule.