Space & Astronomy/Space and Astronomy (October 1993).iso/mac/TEXT/SPACEDIG/V12_5/V12_558.TXT

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Subject: SPACE Digest V12 #558

SPACE Digest                                     Volume 12 : Issue 558

Today's Topics:
              Re: Name for LLNL station.
              Ted Molczan -- online !!!
         Looking for Saturn pics from Hubble
            Another philosophical question
          Re: Is "CEROS Aerospace" for real? -- No.
            Re: Magellan Update - 11/12/90
Re: The Ariane V36 failure (was Re: Ariane launches ON TIME! (again))
              Re: Name for LLNL station.
          Re: CRAF/Cassini Update - 11/09/90
   Rotating Space Station Crews (was Re: LNLL Inflatable Stations)
            Re: Magellan Update - 11/12/90
       Is "CEROS Aerospace" for real? ($600/lb in 1992)
                Triton article

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Date: Tue, 13 Nov 90 17:00:20 -0500
From: "Allen W. Sherzer" <[e-mail]>
To: [e-mail]
Subject: Re: Name for LLNL station.
Newsgroups: sci.space
In-Reply-To: <[e-mail]>
Organization: Evil Geniuses for a Better Tomorrow
Cc:

In article <[e-mail]>:
>I. Freedom 2
>II. Von Braun Station
>III. Base Camp Freedom II
>IV. Oz

And somebody else recommended:

>Oscar, after Oscar Meyer.

I mentioned this to a couple of Congressional staffers; both got
a kick out of them. One pointed out that the Ham radio satellite
is named Oscar for the exact same reason (get it, Ham, Oscar Meyer???).

However, one staffer told me that the best name came from a newspaper
who called them: "Brilliant Condoms".

   Allen
--
+---------------------------------------------------------------------------+
|Allen W. Sherzer| I had a guaranteed military sale with ED-209. Renovation |
|   [e-mail]  | programs, spare parts for 25 years. Who cares if it      |
|                | works or not?  - Dick Jones, VP OCP Security Concepts    |

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

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Date: 13 Nov 90 21:00:33 GMT
From: timbuk!cs.umn.edu!uc!noc.MR.NET!ns![e-mail]  (John Logajan)
Organization: Network Systems Corporation
Subject: Ted Molczan -- online !!!
References: <[e-mail]>
Sender: [e-mail]
To: [e-mail]

[e-mail] (Ted Molczan) writes:
>                      STS 38 Visual Observation Guide

Ted Molczan!  Many people have requested your fine orbital elements
file.  I have been getting them off a local space interest BBS and
uploading them here, but they tend to be updated infrequently.

Any chance that you would post them here directly?  T. Kelso has seemingly
quit posting his, so there hasn't been any recently.

Other people -- please chime in if you think we should pursuade Ted.

--
- John Logajan @ Network Systems; 7600 Boone Ave; Brooklyn Park, MN 55428
- [e-mail], 612-424-4888, Fax [phone]

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

Date:         Tue, 13 Nov 90 20:36:06 CST
From: John Nordlie <[e-mail]>
Subject:      Looking for Saturn pics from Hubble

Does anyone know if there are any image files (preferably GIF)
of Saturn taken by Hubble available to the public yet?

If so, where?

Thanks in advance...


=======================================================================
John Nordlie   |   "What, me worry?"
University     |+++++++++++++++++++++++++++++++++++++++++++++++++++++++
of              (This is a shared account, so include a name
North Dakota     in any mail to me.  Thanks)
=======================================================================

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

Date: 14 Nov 90 02:29:20 GMT
From: ingr!infonode![e-mail]  (Rusty Wiginton)
Subject: Another philosophical question


     I've been thinking lately about the public's perception of
     space exploration and, more specifically, NASA.  I read a
     quote from J.R. Thompson that said something like "People
     expect a voodoo space program -- you know 'Beam me up,
     Scotty.'"  Do you think that's true?  Is the average guy's
     opinion on the space program distorted by fantasy?  If the
     public understood what was really involved in a Shuttle
     mission or in buildling a space station, would they be
     less critical, more supportive?

--
                        .| Rusty Wiginton              .
                        .| uunet!ingr!b17a!rbw!rusty   .
                        .|                             .

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

Date: 14 Nov 90 02:50:53 GMT
From: sam.cs.cmu.edu![e-mail]  (Vincent Cate)
Subject: Re: Is "CEROS Aerospace" for real? -- No.

In the October 22-28 Space News on page 4 there is an article about CEROS.
It seems the company is really just one guy, a Mr. Godlewski, who has
no space experience.  He claims to have involvement with certain other
companies but the involvement is just that those companies sent for
information.  It looks like CEROS does not have any chance of really
building or launching a rocket.


In case there is anyone else out there who has not been getting Space News,
let me say that it is fantastic!!  It is a weekly newspaper devoted to
space that costs $75/year ([phone]).

  -- Vince

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

Date: 13 Nov 90 13:58:11 GMT
From: usc!samsung!hubdub![e-mail]
Subject: Re: Magellan Update - 11/12/90

In article <[e-mail]>, [e-mail] (Ron Baalke) writes:
>                         MAGELLAN STATUS REPORT
>                           November 12, 1990
>
>      The Magellan spacecraft performance is nominal.   The spacecraft
> successfully accepted commands on Friday, November 9, resuming mapping on
> orbit 787 at 4:07 am PST on Saturday, November 10.  One STARCAL (star
> calibration) occurs every orbit and 1 DESAT (desaturation of the reaction
> wheels) every 4th orbit.  16 STARCALS and 4 DESATS have been done since
> mapping resumed.
>
>      A sequence patch to disable solar array control during mapping has
> prevented the spacecraft vibration from recurring.  Track 1 of tape recorder B
> was successfully played back on November 9.  It contains the results of
> STARCALS performed during Superior Conjunction.
>       ___    _____     ___
>      /_ /|  /____/ \  /_ /|
>      | | | |  __ \ /| | | |      Ron Baalke         | [e-mail]
>   ___| | | | |__) |/  | | |___   Jet Propulsion Lab | [e-mail]
>  /___| | | |  ___/    | |/__ /|  M/S 301-355        |
>  |_____|/  |_|/       |_____|/   Pasadena, CA 91109 |



Perhaps a dumb question (I'm full of those, believe me!)

What's the JPL/NASA going to do with the Magellan probe when it's done mapping
Venus?

Kevin

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

Date: 14 Nov 90 01:38:43 GMT
From: [e-mail]  (Jean-Yves Herve')
Subject: Re: The Ariane V36 failure (was Re: Ariane launches ON TIME! (again))

In article <[e-mail]> [e-mail] (Henry Spencer) writes:
>In article <[e-mail]> [e-mail] writes:
>>(1) the failure was due to a piece of cloth.  How could this have been
>>    isolated after the failure?

>They pinned down possible causes based on the symptoms, and then went through
>the recovered debris very carefully, and found the cloth.

I seem to remember reading some report stating that the piece of cloth was
clean (which meant it hadn't been used for cleaning parts and been forgotten
there). Now, how clean can a piece of cloth found among debris be?
Or is my memory playing tricks again?


Jean-Yves Herve'
[e-mail]

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

Date: 14 Nov 90 01:29:40 GMT
From: [e-mail]  (Millard Edgerton)
Subject: Re: Name for LLNL station.

OSCAR =Orbiting Satellite Carrying Amateur Radio!

***************************************************************************
*  Intelligent people talk about ideas.   | Standard disclaimer(s)        *
*  Average people talk about things.      | Millard J. Edgerton, WA6VZZ   *
*  Small people talk about other people.  | [e-mail]      *
***************************************************************************
*            Fax [phone]             |      Voice 415-604-3480       *
*      Employed by Sterling Software at NASA Ames Research Center.        *
***************************************************************************

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

Date: 13 Nov 90 23:21:48 GMT
From: usc!zaphod.mps.ohio-state.edu!mips!public![e-mail]  (Nikhil R. Joshi [e-mail])
Subject: Re: CRAF/Cassini Update - 11/09/90



In article <[e-mail]> [e-mail] writes:
>>In article <[e-mail]>, [e-mail] writes:
>>
>> 30 minutes! Why can't we send an advanced long-life, Viking-style probe
>> to Titan instead?! The Viking lander was "only" about twice as heavy as the
>> Huygens probe will be so the lack of a powerful-enough launcher surely cannot
>> be the reason? Is this just because of financial considerations again, or...?
>
>The reason is maybe that we have NO data of the condition down there:
>
>    - Is there any *solid* ground ?
>    - pressure ?
>    - temperature ?
>

 Was the Viking lander at least partially solar powered?  If so, that
 explains it's long life.  The solar flux at Saturn isn't nearly great
 enough to power even an orbital probe like Voyager, let alone a lander
 after being attenuated by Titan's atmosphere.   But then why can't we
 put an RTG like Voyager's on the probe?

 Nikhil Joshi
 [e-mail]

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

Date:     Tue, 13 Nov 90 19:03 CST
From: Bill Higgins-- Beam Jockey <[e-mail]>
Subject:  Rotating Space Station Crews (was Re: LNLL Inflatable Stations)
Original_To:  SPACE

In discussing crew change-outs with Mir, Freedom, and the LLNL sausages,
Allen W. Sherzer ([e-mail]) wrote:

>In a staion with
>artificial gravity crew endurance is not limited by microgravity.

>All things being equal a crew in the LLNL Earth Station will not need
>to be rotated as often as Freedom. Since it will cost several hundred
>million $$ to do a rotation, this is a major consideration.

Allen, this is not true.  In a space station with artificial gravity, the crew
will have to be rotated MORE often.

Think about it. (-:

During the first and second stage         Bill Higgins
flights of the vehicle, if a serious      Fermi National Accelerator Laboratory
irretrievable fault should occur and      [e-mail]
the deviation of the flight attitude of   [e-mail]
the vehicle exceeds a predetermined       SPAN/Hepnet: 43011::HIGGINS
value, the attitude self-destruction
system will make the vehicle
self-destroyed.
     --Long March 3 User's Manual
     Ministry of Astronautics, People's Republic of China (1985)

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

Date: 14 Nov 90 01:45:16 GMT
From: sdd.hp.com!elroy.jpl.nasa.gov!jato!mars![e-mail]  (Ron Baalke)
Subject: Re: Magellan Update - 11/12/90

In article <[e-mail]> [e-mail] writes:
>
>
>Perhaps a dumb question (I'm full of those, believe me!)
>
>What's the JPL/NASA going to do with the Magellan probe when it's done mapping
>Venus?
>

If Congress approves the extended mission for Magellan, then the spacecraft
can continue mapping Venus for about 12 more years, at which point the
propellant will have run out, and the spacecraft's orbit will decay resulting
in Magellan entering the atmosphere and burning up.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|
     | | | |  __ \ /| | | |      Ron Baalke         | [e-mail]
  ___| | | | |__) |/  | | |___   Jet Propulsion Lab | [e-mail]
 /___| | | |  ___/    | |/__ /|  M/S 301-355        |
 |_____|/  |_|/       |_____|/   Pasadena, CA 91109 |

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

Date: 14 Nov 90 00:41:00 GMT
From: sam.cs.cmu.edu![e-mail]  (Vincent Cate)
Subject: Is "CEROS Aerospace" for real? ($600/lb in 1992)


About the beginning of June there was an ad by a "CEROS Aerospace Corp"
in aviation week and space tech.  It seems that at that time they
were in Highland Michigan and moving to DC.  I called information
in both areas and there was no CEROS listed.  Now, in the October 15-21
Space News there is a big 2 page ad saying that they are moving
to Orlando Florida from Highland Michigan.  Just I called information
in both Highland and Orlando and neither had any listing.  CEROS claims
they will launch stuff for $600/lb starting in June 1992.  They only
list a P.O. Box.  Do they really exist?  Are they going to exist?
Do they have people who can design rockets?  Do they have funding?
Anybody know why they don't seem to have a phonenumber?  Anybody have
any info at all?

 -- Vince

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

Date: 14 Nov 90 03:13:12 GMT
From: usc!elroy.jpl.nasa.gov!jato!mars.jpl.nasa.gov![e-mail]  (Ron Baalke)
Subject: Triton article

From the Science News - November 10, 1990

The Mystery Behind Triton's Plumes

     The dark, geyser-like plumes photographed by Voyager 2 last year,
rising about 8 kilometers above Neptune's moon Triton, are far less
spectacular that the towering volcanic eruptions witnessed by Voyager 1
on Jupiter's moon Io a decade earlier.  Yet Triton outbursts puzzle
scientist more.

     Researchers had predicted Io's eruptions -- which rose hundreds of
of kilometers and provided the first examples of active volcanism seen
beyond Earth.  Moreover, a now widely accepted explanation accompanied the
prediction, suggesting that a tidal tug-of-war between Jupiter and it other
big moons might drive Io's volcanic fury.

     Triton's plumes, by contrast, were wholly unexpected.  And the question
of what propels them high into Triton's atmosphere still furrows many brows.
Are Triton's plumes due to some version of the "greenhouse" effect, or to
some extraterrestrial analog of the dust devils that whirl sand across
desert landscapes of Earth?

     Triton's mystery plumes consist primarily of nitrogen gas that has burst
through a layer of frozen nitrogen covering Triton's extremely cold surface.
Some Voyager researchers proposed last year that the sun's warming of dark
particles trapped in the ice may ultimately heat the gas underneath.  The
resulting expansion of this gas could create a pressure buildup that
eventually relieves itself in eruptions through weak spots in the ice.  It's
also possible, though less likely, that radioactive elements in Triton's
core might generate enough heat to expand and pressurize the gas, according
to Laurence Soderblom of the U.S. Geological Survey in Flagstaff, Arizona.

     Whatever the source, warming the plume material by as little as 4 degrees
Celsius could "drive it out of the ground" with enough momentum to spew it
8 km into Triton's atmosphere, says Robert. H. Brown of NASA's Jet Propulsion
Laboratory in Pasadena, California.  And two kinds of "greenhouse" effects
occurring within Triton's frozen surface could store enough heat to power
such plumes, Brown reports.

     Under one possible scenario -- which he terms a "super greenhouse"
effect -- dark, absorbing matter trapped with nitrogen gas might capture
and hold heat from the sun beneath a thin covering of icy nitrogen.  Under
a more "classical" greenhouse scenario, the sun's heat might merely build
up throughout a pile of ice more than 60 meters deep.  Either way, the
heated gas would eventually escape.

     Kimberly A. Tryka and Andrew P. Ingersoll of the California Institute
of Technology in Pasadena counter that the curious plumes might instead
represent a Tritonian version of dust devils -- swirling atmospheric vortices.
Though the mean temperature at Triton's surface if a rigid -235 degrees
Celsius, dust devils might arise if the sun created a relatively hot spot
on Triton's surface.  The temperature differential between that surface ice
and the surrounding, colder terrain might create enough turbulence in the
nitrogen atmosphere to drive formation of the plumes, the Caltech team
concludes.

     Dust devils on Earth can occur in environments well above 50 degrees
Celsius, but there is evidence that they also arise in much colder climes.
Besides Voyager's intriguing Triton images, photos taken in the late 1970s
by the Viking craft recorded 6-km-high dust devils on Mars.
      ___    _____     ___
     /_ /|  /____/ \  /_ /|
     | | | |  __ \ /| | | |      Ron Baalke         | [e-mail]
  ___| | | | |__) |/  | | |___   Jet Propulsion Lab | [e-mail]
 /___| | | |  ___/    | |/__ /|  M/S 301-355        |
 |_____|/  |_|/       |_____|/   Pasadena, CA 91109 |

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

End of SPACE Digest V12 #558
*******************