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Date: Tue, 15 Sep 92 05:04:04
From: Space Digest maintainer <digests@isu.isunet.edu>
Reply-To: Space-request@isu.isunet.edu
Subject: Space Digest V15 #203
To: Space Digest Readers
Precedence: bulk
Space Digest Tue, 15 Sep 92 Volume 15 : Issue 203
Today's Topics:
Armstrong's boots
Bioeffects of magnetic field deprivation
Clinton and Space Funding (2 msgs)
Is NASA really planning to Terraform Mars?
JGR-Planets Magellan Articles
Nasa's Apollo rerun
NASA Daily News for 09/14/92 (Forwarded)
New lunar spacecraft (& old data formats)
RL-10
STS-47 element set JSC-008, flight day 3, orbit 34
The BB Gun experiment (was Re: Asteroid explorer)
The real issue: massive misallocation of funds
Two-Line Orbital Element Set: Space Shuttle
Welcome to the Space Digest!! Please send your messages to
"space@isu.isunet.edu", and (un)subscription requests of the form
"Subscribe Space <your name>" to one of these addresses: listserv@uga
(BITNET), rice::boyle (SPAN/NSInet), utadnx::utspan::rice::boyle
(THENET), or space-REQUEST@isu.isunet.edu (Internet).
----------------------------------------------------------------------
Date: Mon, 14 Sep 1992 20:30:50 GMT
From: Michael Corvin <zwork@starfighter.den.mmc.com>
Subject: Armstrong's boots
Newsgroups: sci.space
Sort of related to this topic...
I heard a piece this weekend on NPR about the problem that the
Smithsonian is having with its collection of spacesuits, including
the Apollo gear. It seems that the polymers in many of the materials
are degrading and the suits are, albeit gradually, falling apart.
(Imagine, in the year 3000, a display case at NASM containing a small
pile of dust "This was worn by Neil Armstrong"... :-( ).
I imagine that the suits currently in use aboard the shuttle have
a limited life due to such problems - can space.sources tell us
what the servide life of a Shuttle suit is?
What is the current status of the new suit design. The last I heard
they were having a 'shoot-out' between a hard shell design and a
soft design - or have they nixed it because of $$ and are going with
improved Shuttle suits?
(Inquiring minds want to know the latest in exoatmospheric haut couture
and sartorial splendor...)
-----------------------------------------------------------------------------
Michael Corvin PP-ASEL, PP-G zwork@starfighter.den.mmc.com
just another spaced rocket scientist at Martin Marietta Astronautics Group
-----------------------------------------------------------------------------
=============== My views, not Martin Marietta's ========================
-----------------------------------------------------------------------------
------------------------------
Date: Mon, 14 Sep 1992 20:39:20 GMT
From: Henry Spencer <henry@zoo.toronto.edu>
Subject: Bioeffects of magnetic field deprivation
Newsgroups: sci.space
In article <rabjab.97.0@golem.ucsd.edu> rabjab@golem.ucsd.edu (Jeff Bytof) writes:
>... I've been looking into some rather astounding
>results offered by experimenters working in the area of the bioeffects
>of magnetic field deprivation. In view of the relevance to
>manned lunar and interplanetary exploration and biological research...
I'm not terribly impressed. For one thing, it's really easy to figure
out ways to run much better experiments, avoiding problems like possible
chemical toxicity (e.g., house all animals in aluminum cylinders, and
put mu-metal casings around the *outside* of some of them). For another,
if it does turn out to be an issue, simulating Earth's field should not
be a big problem -- it's pretty feeble.
--
There is nothing wrong with making | Henry Spencer @ U of Toronto Zoology
mistakes, but... make *new* ones. -D.Sim| henry@zoo.toronto.edu utzoo!henry
------------------------------
Date: Mon, 14 Sep 1992 20:45:21 GMT
From: Andy Freeman <andy@SAIL.Stanford.EDU>
Subject: Clinton and Space Funding
Newsgroups: sci.space,sci.astro,talk.politics.space,alt.politics.bush,alt.politics.clinton
In article <1992Sep14.163026.20300@umbc3.umbc.edu> alex@engr3.umbc.edu (alex) writes:
>In any case, his whole economic plan is based on investment in hte
>infrastructure, which includes space and computer technology.
Note that most of the proposed infrastructure spending is on projects
that localities don't find profitable.
I hear about bad bridges in Boston, but the good Bostonians don't feel
that it is profitable to fix those bridges. Since they get most of
the benefits from those bridges, it sure doesn't make any sense for ME
to pay to fix them.
The "infrastructure spending" is going to communities that can't pay
their own way; big cities just don't work in the US. We didn't
subsidize the buggy whip industry; why should we subsidize the big
cities?
-andy
--
UUCP: {arpa gateways, sun, decwrl, uunet, rutgers}!cs.stanford.edu!andy
ARPA: andy@cs.stanford.edu
------------------------------
Date: 14 Sep 92 22:31:10 GMT
From: "Richard M. Warner" <rick@sjsumcs.sjsu.edu>
Subject: Clinton and Space Funding
Newsgroups: sci.space,sci.astro
In article <1992Sep12.194702.23291@usl.edu> pssres12@ucs.usl.edu (Vignes Gerard M) writes:
>From: pssres12@ucs.usl.edu (Vignes Gerard M)
>Subject: Clinton and Space Funding
>Date: 12 Sep 92 19:47:02 GMT
Please move your idealogical diatribes to an appropriate forum (alt.*,
talk.*, or /dev/null)
> Bill Clinton claims he will cut taxes,
> balance the budget, and increase social spending.
>
> We all know those are empty campaign promises,
> but we also know that Clinton and Gore are
> hostile to technology and research spending
> and especially to projects involving
> space exploration and astronomy.
>
> If you've not yet done so,
> please register to vote.
> There's still time.
>
> When election day comes,
> please get out and vote.
> It's your right AND your duty.
>
> A non-vote is not a form of protest;
> it's a clear signal that you're happy with things
> just the way they are and you really don't care anyway.
>
> Don't stay home that day just because you're disgusted,
> and let a pitifully small percentage of people
> determine our nation's future.
>
>--
>
>pssres12@ucs.usl.edu Gerard Vignes, USL PO Box 42709, Lafayette LA 70504 USA
------------------------------
Date: Mon, 14 Sep 92 21:17:06 GMT
From: "Thomas H. Kunich" <tomk@netcom.com>
Subject: Is NASA really planning to Terraform Mars?
Newsgroups: sci.space
In article <9209140841.AA24495@ucbvax.Berkeley.EDU> nicho@vnet.ibm.com writes:
> Au contraire .. It very much _does_ matter what the reasons are. It
>is not possible to devise a long term solution to a problem, if you
>don't understand what the problem is, or are attempting to solve the
>wrong problem.
It is equally inadviseable to try and solve known problems incorrectly.
Most of subsaharan Africa is starving and only a small percentage of
the need is caused by war and political upheaval. In fact, much of the
politically motivated unrest is caused by the initial shortages of food.
Yes, Ethiopia has traditionally produced all of their food but not for the
sort of population densities that started driving the initial war and the
Marxist takeover. The same with Somolia. The people that say that it is the
war causing the food shortage are missing the point that before the war
the very best the population did was reach subsistance.
It is the lack of food and the drive for survival that is amplifying the
political strife in these regions.
How are we to produce surpluses after the cost of oil multiplies?
------------------------------
Date: Tue, 15 Sep 1992 05:10:24 GMT
From: Ron Baalke <baalke@kelvin.jpl.nasa.gov>
Subject: JGR-Planets Magellan Articles
Newsgroups: sci.space,sci.astro,alt.sci.planetary,sci.geo.geology
JGR-Planets Special Magellan Issues
August 25 and October 25, 1992
This is a list of the Magellan articles published in the two special
issues of "JGR-Planets" this fall and shows the mailing address of
the senior authors, as well as the issue in which each paper will
be printed.
"JGR-Planets" is available to members of AGU for $42 for the
entire year or $20 for single issues. Reprints of single papers
for research or teaching purposes are $3.50 for the first, and $1
for additional copies.
AGU can be contacted at:
American Geophysical Union
2000 Florida Avenue, N. W.
Washington, DC 20009
(202) 462-6900
Facsimile: (202) 328-0566
*****
Mg01: August, 1992
"Joints in Venusian Lava Flows"
C. Johnson, D. Sandwell
David Sandwell or Catherine Johnson
Geological Research Division
Scripps Inst. of Oceanography
La Jolla, CA 92093-0220
*****
Mg02: August, 1992
"Aeolian Features on Venus: Preliminary Magellan Results"
R. Greeley, Arvidson, Elachi, Geringer, Plaut, Saunders,
Schubert, Stofan, Thouvenot, Wall, Weitz
Ronald Greeley
Arizona State Univ.
Dept. of Geology
Tempe, AZ 85287-1404
*****
Mg03: August, 1992
"Reflection and Emission Properties in Alpha Regio"
K. Tryka, D. Muhleman
Duane Muhleman
M/S 17025
California Institute of Technology
Pasadena, CA 91125
*****
Mg04: August, 1992
"An Unusual Volcano on Venus"
H.J. Moore, Plaut, Schenk, Head
Henry Moore
354 Middlefield Road,
M/S 975
U. S. Geological Survey
Menlo Park, CA 94025
*****
Mg05: October, 1992
"Pancakelike Domes on Venus"
D. McKenzie, Ford, Liu, Pettengill
Dan McKenzie
Institute of Theoretical Geophysics
Bullard Laboratories
Madingley Road
Cambridge CB3 0EZ, U.K.
*****
Mg06: August, 1992
"Features on Venus Generated by Plate Boundary Processes"
D. McKenzie, Ford, Johnson, Parsons, Sandwell, Saunders, Solomon
Dan McKenzie
Institute of Theoretical Geophysics
Bullard Laboratories
Madingley Road
Cambridge CB3 0EZ, U.K.
*****
Mg07: August, 1992
"The Morphology and Evolution of Coronae on Venus"
Squyres, Janes, Baer, Bindschadler, Schubert, Sharpton, Stofan
Steven Squyres
326 Space Sciences Bldg.
Cornell University
Ithaca, NY 14853-6801
*****
Mg08: August, 1992
"Plains Tectonism on Venus: The Deformation Belts of Lavinia Planitia"
Squyres, Jankowski, Simons, Solomon, Hager, McGill
Steven Squyres
326 Space Sciences Bldg.
Cornell University
Ithaca, NY 14853-6801
*****
Mg09: August, 1992
"Fluid Outflows from Venus Impact Craters: Analysis from Magellan Data"
Asimow, Wood
John Wood
60 Garden Street
Smithsonian Astrophysical Observatory.
Cambridge, MA 02139
*****
Mg10: August, 1992
"Critical Taper Wedge Mechanics of Fold and Thrust Belts on Venus:
Initial Results from Magellan"
Suppe, Connors
John Suppe
Department of Geological and Geophysical Science
Princeton University
Princeton, NJ 085441003
*****
Mg11: August, 1992
"The Geology and Distribution of Impact Craters on Venus:
What Are They Telling Us?"
Schaber, Strom, Moore, Soderblom, Kirk, Chadwick, Dawson, Gaddis,
Boyce, Russell
Gerald Schaber
US Geological Survey
Geologic Division
2255 North Gemini Drive
Flagstaff, AZ 86001
*****
Mg12: August, 1992
"Images and Topographic Relief at the North Pole of Venus"
Leberl, Maurice, Thomas, Leff, Wall
Franz W. Leberl
Vexcel Corp.
2477 55th St.
Boulder, CO 80301
*****
Mg13: August, 1992
"Magellan Observations of Alpha Regio: Implications for Formation
of Complex Ridged Terrains on Venus"
Bindschadler, deCharon, Head, Beratan, Smrekar
Duane Bindschadler
Dept. Earth and Space Sciences
University of California
Los Angeles, CA 90024-1567
*****
Mg14: October, 1992
"Small Volcanic Edifices and Volcanism in the Plains of Venus"
Guest, Bulmer, Aubele, Beratan, Greeley, Head, Michaels, Weitz,
Wiles
John Guest
Mill Hill Park
University of London Observatory
University College London
London, England NW72QS U.K.
*****
Mg15: October, 1992
"Mineral Equilibria and The High Radar Reflectivity of Venus
Mountaintops"
Klose, Wood, Hashimoto
John Wood
60 Garden Street
Smithsonian Astrophysical Observatory.
Cambridge, MA 02139
*****
Mg16: October, 1992
"Analysis of Volcanic Surface Morphology on Venus from Comparison
of Arecibo, Magellan, and Terrestrial Airborne Radar Data"
B. Campbell & D. Campbell
Donald Campbell
Space Sciences Building
Department of Astronomy
Cornell University
Ithaca, NY 14853
*****
Mg17: August, 1992
"The Rotation Period, Direction of the North Pole, and Geodetic
Control Network of Venus"
Davies, Colvin, Rogers, Chodas, Sjogren, Akim, Stepanyantz,
Vlasova, and Zakharov
Merton Davies
1700 Main Street
The RAND Corporation
Santa Monica, CA 90406
*****
Mg18: October, 1992
"Styles of Deformation in Ishtar Terra and Their Implications"
Kaula, Bindschadler, Grimm, Hansen, Roberts, Smrekar
William M. Kaula
Dept. Earth and Space Sciences
University of California
Los Angeles, CA 90024-1567
*****
Mg19: October, 1992
"Flexural Ridges, Trenches and Outer Rises Around Venus Coronae"
Sandwell, Schubert
David Sandwell
Geological Research Division
A020
Scripps Inst. of Oceanography
La Jolla, CA 92093
*****
Mg20: October, 1992
"Mylitta Fluctus, Venus: Rift Related, Centralized Volcanism and
the Emplacement of Large Volume Flow Units"
Magee Roberts, Guest, Head, Lancaster
Kari Magee Roberts
Dept. Geological Sciences
Box 1846
Brown University
Providence, RI 02912
*****
Mg21: August, 1992
"Channels and Valleys on Venus: Preliminary Analysis of Magellan Data"
Baker, Komatsu, Parker, Gulick, Kargel, Lewis
Vic Baker
Dept. Of Geosciences
Building #77
University of Arizona
Tucson, AZ 85721
*****
Mg22: October, 1992
"Magellan Observations of Extended Impact Crater Related Features
on the Surface of Venus"
Campbell, Stacy, Newman, Arvidson, Jones, Musser, Roper, Schaller
Donald Campbell
Space Sciences Building
Department of Astronomy
Cornell University
Ithaca, NY 14853
*****
Mg23: August, 1992
"Global Distribution and Characteristics of Coronae and Related
Features on Venus: Implications for Origin and Relation to Mantle
Processes"
Stofan, Sharpton, Schubert, Baer, Bindschadler, Janes, Squyres
Ellen Stofan
JPL, MS 230-225
4800 Oak Grove Dr.
Pasadena, CA 91109
*****
Mg24: August, 1992
"Scattering Properties of Venus' Surface: Preliminary Results from Magellan"
Tyler, Simpson, Maurer, Holmann
G. Leonard Tyler
Center for Radar Astronomy
Stanford University
Stanford, CA 94305-4055
*****
Mg25: August, 1992
"Fractal Analysis of Venus Topography in Tinatin Planitia and Ovda Regio"
Kucinskas, Turcotte, Huang, Ford
Algis B. Kucinskas or Donald Turcotte
2122 Snee Hall
Department of Geological Sciences
Cornell University
Ithaca, NY 14853
*****
MG26: August, 1992
"Coldspots and Hotspots: Global Tectonics and Mantle Dynamics of Venus"
Bindschadler, Schubert, Kaula
Duane Bindschadler
Dept. Earth and Space Sciences
University of California
Los Angeles, CA 90024-1567
*****
Mg27: October, 1992
"Dyke Emplacement on Venus and on the Earth"
McKenzie, McKenzie, Saunders
Dan McKenzie
Institute of Theoretical Geophysics
Bullard Laboratories
Madingley Road
Cambridge CB3 0EZ, U.K.
*****
Mg28: October, 1992
"Comparison of Goldstone and Magellan Radar Data in the
Equatorial Plains of Venus"
Plaut, Arvidson
Jeff Plaut
JPL, MS 230-225
4800 Oak Grove Dr.
Pasadena, CA 91109
*****
Mg29: October, 1992
"Gravitational Spreading of High Terrain in Ishtar Terra, Venus"
Smrekar, Solomon
Sue Smrekar
MIT
Dept. Earth Atmospheric and Planetary Sci.
Building 54, Room 522
Cambridge, MA 02139
*****
Mg30: August, 1992
"Surface Modification of Venus As Inferred From Magellan
Observations of Plains and Tesserae"
Arvidson, Greeley, Malin, Saunders, Izenberg, Plaut, Stofan
Ray Arvidson
Dept. Earth and Planetary Sciences
Campus Box 1169
Washington University
St. Louis, MO 63130-4899
*****
Mg31: (Later issue)
"Cleopatra Crater on Venus: A Happy End to the Impact-Volcanic
Controversy"
Kirk, Schaber, Ivanov, Potapov, Basilevsky
Alexandr Basilevsky
Kosygin Street 19
Academy of Sciences
Vernadsky Institute of Geochemistry
Moscow, 11975 USSR
or
Gerald Schaber
US Geological Survey
Geologic Division
2255 North Gemini Drive
Flagstaff, AZ 86001
*****
Mg32: October, 1992
"Mass Movements on Venus: Preliminary Results from Magellan Cycle I
Observations"
Malin
Michael Malin
Malin Space Science Systems
3535 General Atomics Court
Suite 250
San Diego, CA 92121
*****
Mg33: August, 1992
"Venus: Topography and Kilometer Scale Slopes"
Ford, Pettengill
Peter Ford
Building 37, Room 601
Dept. of Space Sciences
MIT
Cambridge, MA 02139
*****
Mg34: August, 1992
"Steepsided Domes on Venus: Characteristics, Geologic Setting,
and Eruption Conditions from Magellan Data"
Pavri, Head, Klose, Wilson
Betina Pavri
Dept. Geological Sciences
Box 1846
Brown University
Providence, RI 02912
*****
Mg35: August, 1992
"Regional Topographic Rises on Venus: Geology of Western Eistla
Regio and Comparison to Beta Regio and Atla Regio"
Senske, Schaber, Stofan
Dave Senske
Dept. Geological Sciences
Box 1846
Brown University
Providence, RI 02912
*****
Mg36: (Probably a later issue)
"Atmospheric Effects on Cratering on Venus"
Takata, Ahrens, Hornung, Phillips
Toshiko Takata
M/S 25221
California Institute of Technology
Pasadena, CA 91125
*****
Mg37: October, 1992
"Geological Correlations with the Interior Density Structure of
Venus"
Herrick, Phillips
Robert Herrick
Department of Geological Sciences
Southern Methodist University
Dallas, TX 75275
or
Roger Phillips
Dept. Earth and Planetary Sciences
Campus Box 1169
Washington University
St. Louis, MO 63130-4899
*****
Mg38: October, 1992
"Impact Crater Distribution on Venus: Implications for Planetary
Resurfacing History"
Phillips, Raubertas, Arvidson, Sarkar, Herrick, Izenberg, Grimm,
Roger Phillips
Dept. Earth and Planetary Sciences
Campus Box 1169
Washington University
St. Louis, MO 63130-4899
*****
Mg39: October, 1992
"Anatomy of a Venusian Hotspot: Geology, Gravity, and Mantle
Dynamics of Eistla Regio"
Grimm, Phillips
Robert Grimm
Dept. Geology
ASU
Tempe, AZ 85287-1404
*****
Mg40: October, 1992
"Impact Cratering on Venus: Physical and Mechanical Models"
Ivanov, Nemchinov, Svetsov, Provalov, Khazins, Phillips
B. A. Ivanov
Kosygin street, 19
Schmidt Institute of Earth Physics
Moscow, 123810 USSR
*****
Mg41: October, 1992
"Atmospheric Effects on Ejecta Emplacement and Crater Formation
on Venus from Magellan"
Schultz
Peter Schultz
Dept. Geological Sciences
Box 1846
Brown University
Providence, RI 02912
*****
Mg42: August, 1992
"Venus Tectonics: An Overview of Magellan Observations"
Solomon, Smrekar, Bindschandler, Saunders, Schubert, Squyres,
Stofan
Sean Solomon
MIT
Dept. Earth Atmospheric and Planetary Sci.
Building 54, Room 522
Cambridge, MA 02139
Mg43:L August, 1992
"Magellan: Mission Summary"
Saunders, et al.
R. Stephen Saunders
JPL, MS 230-225
4800 Oak Grove Dr.
Pasadena, CA 91109
*****
Mg44: October, 1992
"Geophysical Models for the Formation and Evolution of Corona on
Venus"
Janes, Bindschadler, Baer, Schubert, Sharpton, Squyres, Stofan
Daniel Janes
420 Space Sciences Bldg.
Cornell University
Ithaca, NY 14853-6801
*****
Mg45: October, 1992
"Small Scale Fracture Patterns on the Volcanic Plains of Venus"
Banerdt & Sammis
Bruce Banerdt
4800 Oak Grove Drive
Jet Propulsion Laboratory
Mail Stop 183-501
Pasadena, CA 91108
*****
Mg46: August, 1992
"Initial Results from the Magellan Stereo Experiment"
Leberl, Thomas, Maurice
Franz W. Leberl
Vexcel Corp.
2477 55th St.
Boulder, CO 80301
*****
Mg47: October, 1992
"Geology of the Venera 8 Landing Site Region from Magellan Data:
Morphological and Geochemical Considerations"
Basilevsky, Nikolayeva, Weitz
Alexandr Basilevsky
Kosygin Street, 19
Academy of Sciences
Vernadsky Institute of Geochemistry
Moscow, 11975 USSR
*****
Mg48: August, 1992
"Venus Volcanism: Classification of Volcanic Features and
Structures, Associations, and Global Distribution from Magellan Data"
Head, Crumpler, Aubele, Guest, Saunders
James W. Head
Dept. Geological Sciences
Box 1846
Brown University
Providence, RI 02912
*****
Mg49: August, 1992
"Venus Surface Radiothermal Emission"
Pettengill, Ford, Wilt
Gordon Pettengill
Center for Space Research
Building 37, Room 641
MIT
Cambridge, MA 02139
*****
October, 1992
"Enhanced Visualization for Interpretation of Magellan Radar
Data: Supplement to Magellan Special Issue"
Randy Kirk
US Geological Survey
Geologic Division
2255 North Gemini Drive
Flagstaff, AZ 86001
___ _____ ___
/_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov
| | | | __ \ /| | | | Jet Propulsion Lab |
___| | | | |__) |/ | | |__ M/S 525-3684 Telos | Anything is impossible if
/___| | | | ___/ | |/__ /| Pasadena, CA 91109 | you don't attempt it.
|_____|/ |_|/ |_____|/ |
------------------------------
Date: 14 Sep 92 21:05:05 GMT
From: Craig Keithley <keithley@apple.com>
Subject: Nasa's Apollo rerun
Newsgroups: sci.space
This talk about revisiting the Apollo style of moon missions reminds me of
some old papers I read about the Apollo program. Since I don't recall when
(or where) I read them, you'll have to treat this as unsubstantiated.
The gist of the report was that we goofed in our choice of going to the
moon. During the late 50s and early 60s, we were faced with the choice of
developing things like DynaSoar and MOL (these were Air Force) or going for
the moon shot. The benefit of the space station route was that we would
have developed the infrastructure for a manned presence in near Earth (and
moon) space. In retrospect, the problem with the moon shot was that when
all was said and done, we would be left with a few pounds of moon rock, a
fair bit of good science, and little or no infrastructure to support a
manned presence in space.
This isn't to say that I wouldn't support a manned return to the moon using
a non-reusable vehicle, but I'd sure be skeptical about its overall benefit
to the space program.
Perhaps someone could do some back of envelope calculations and determine
how much payload could be delivered to the moon using a translunar vehicle
delivered to LEO via a shuttle mission or two.
Then again, assuming Allen's statements (about using DC-Y as a translunar
vehicle) are correct, I'd strongly consider developing a reusuable DC-Y
rather than a non-reusuable Apollo follow-on.
Allen, whats the max payload DC-Y can put in LEO? I need dimensions and
weight.
Craig Keithley
Apple Computer, Inc.
keithley@apple.com
"Progess requires setbacks." - Henry Spencer
------------------------------
Date: 14 Sep 92 20:32:39 GMT
From: Matthew DeLuca <ccoprmd@prism.gatech.EDU>
Subject: NASA Daily News for 09/14/92 (Forwarded)
Newsgroups: sci.space
In article <1992Sep14.182918.26888@news.arc.nasa.gov> yee@trident.arc.nasa.gov (Peter E. Yee) writes:
>A minor water cooling system leak on one of the Spacelab equipment
>racks was identified and fixed before it impacted any of the experiment
>protocols. The leak was in one of the cooling system fittings on the
>rack with the four experiment furnaces. The flight crew, working with
>mission controllers in Houston and Spacelab engineers in Huntsville,
>resolved the location of the leak and repaired it by tightening the
>fitting.
I think one of the greatest advances in manned spaceflight will come when
astronauts are allowed to tighten nuts and bolts all by themselves without
the advice and consent of engineers on the ground.
Haven't any of these people worked on cars or toilets before? If it leaks,
crank it down another turn!
--
Matthew DeLuca "I'd hire the Dorsai, if I knew their
Georgia Institute of Technology P.O. box."
Office of Information Technology - Zebediah Carter,
Internet: ccoprmd@prism.gatech.edu _The Number of the Beast_
------------------------------
Date: Mon, 14 Sep 92 22:00:31 GMT
From: John Stevenson <hangfore@spf.trw.com>
Subject: New lunar spacecraft (& old data formats)
Newsgroups: sci.space
In article <1992Sep13.231311.13575@elroy.jpl.nasa.gov>
baalke@kelvin.jpl.nasa.gov (Ron Baalke) writes:
> The results of the Lunar Orbiter gravity data was published in 1968 and
1969,
> and there's a nice map of the gravity field on page 605 in the Lunar
> Sourcebook. Note that there has been *no* gravity mapping of the Moon's
> farside. This is because lunar spacecraft were either too far from the
> surface when on the farside, or the Moon itself blocked any radio
transmissions
> to Earth.
> ___ _____ ___
> /_ /| /____/ \ /_ /| Ron Baalke |
baalke@kelvin.jpl.nasa.gov
> | | | | __ \ /| | | | Jet Propulsion Lab |
> ___| | | | |__) |/ | | |__ M/S 525-3684 Telos | Anything is
impossible if
> /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | you don't attempt
it.
> |_____|/ |_|/ |_____|/ |
Dennis -
Thanks, it was Lunar Orbiter 4 and 5.
Ron -
From "Lunar Observer: A Comprehensive Orbital Survey of the Moon", JPL
D-8607, April 15, 1991:
pg. A-2: "The availability of potentially useful newer techniques, plus
much more powerful computers, makes it a very attractive option now to try
reprocessing the old lunar data, and especially the Lunar Orbiter 4 and 5
high inclination data."
pg A-4: ".. a major conclusion, both from the minsymposium on gravity
fields and from our own analysis, is that reprocessing some of the old
data promises to yield an improvement in the lunar gravity field
estimate."
Fred -
from the same reference:
pg A-6: ".. however an excellent source turned out to be the National
Space Science Data Center. Their purpose is to collect and archive
existing space science data, and the data are kept there with some care."
The reference goes on to note that the radionavigation data was acquired
from the NSDC on 7 track tapes, which no one any longer had the software (
or even tape drives?) to read. The reference then goes on to discuss the
various boxes of punched cards which may or may not contain the required
data. So it appears that the information is not yet lost, but the will (
or dollars) to recover it may be.
This information on the lunar gravity field is crucial for orbit design
and propellant sizing for upcoming lunar missions.
Henry -
Love your sigs, but how 'bout a new one?
John Stevenson
hangfore@spf.trw.com
------------------------------
Date: Mon, 14 Sep 1992 20:22:44 GMT
From: "Allen W. Sherzer" <aws@iti.org>
Subject: RL-10
Newsgroups: sci.space
In article <1992Sep14.133554.28448@ke4zv.uucp> gary@ke4zv.UUCP (Gary Coffman) writes:
>As I noted in the part you deleted, after 30 years they are still going
>boom. After 30 years, the Wright Flyer was replaced by the DC-3. There's
One of the accidents you described in the past 20 years would have posed
a danger to ship or crew. That's a record Douglas would have been proud
to claim for the DC-3.
But your main error is in measuring experience by calendar time. The
best way to measure experience is the time the hardware flies. By that
measure, we are barely in the 20s.
>a limit to how many times you stretch old designs before you get out a
>clean sheet of paper and start over.
Sure. But that is for the market to decide.
Look at it this way, if your right then when the market opens up for
launches the primitive Delta and Titan launchers will fail to the better
cheaper faster launchers you say will be built. It will also happen
faster since builders won't be hampered by Congress to do it.
So why does this bother you so much?
>Atlas, Delta, and Titan are well past that point.
Since conservative designs exist to use them for cheap HLV's reducing
costs by a factor of four this statement is hard to accept.
>Instead of stretching them again, it seems better to
>me to start with a new design for a HLV, one that employs lessons learned
>about rocket propulsion over the last 40 years.
If your right, they don't worry; it will happen if we adopt commercial
procurement. The current way just isn't doing it. Every launcher built
the way you would have it for the past 20 years has actually INCREASED
the cost of access to space. NLS alone (if built) will actually cost
33% more to put a pound into LEO than a Commercial Titan.
Allen
--
+---------------------------------------------------------------------------+
| Allen W. Sherzer | "If they can put a man on the Moon, why can't they |
| aws@iti.org | put a man on the Moon?" |
+----------------------222 DAYS TO FIRST FLIGHT OF DCX----------------------+
------------------------------
Date: 14 Sep 1992 20:58:31 GMT
From: Jay Maynard <jmaynard@oac.hsc.uth.tmc.edu>
Subject: STS-47 element set JSC-008, flight day 3, orbit 34
Newsgroups: rec.radio.amateur.misc,sci.space,sci.space.shuttle
STS-47
1 22120U 92 61 A 92258.67230773 .00130000 00000-0 17400-3 0 86
2 22120 56.9974 98.0218 0008453 286.4077 73.6043 15.89326760 348
Satellite: STS-47
Catalog number: 22120
Epoch time: 92258.67230773 =====> (14 SEP 92 16:08:07.38 UTC)
Element set: JSC-008
Inclination: 56.9974 deg
RA of node: 98.0218 deg Space Shuttle Flight STS-47
Eccentricity: .0008453 SGP4 Keplerian Elements
Arg of perigee: 286.4077 deg from NASA flight Day 3 vector
Mean anomaly: 73.6043 deg
Mean motion: 15.89326760 rev/day W5RRR - G. L. Carman
Decay rate: 1.30000e-03 rev/day^2 NASA Johnson Space Center
Epoch rev: 34
G.L.CARMAN
--
Jay Maynard, EMT-P, K5ZC, PP-ASEL | Never ascribe to malice that which can
jmaynard@oac.hsc.uth.tmc.edu | adequately be explained by stupidity.
"Keep in mind that Amateur Radio As We Know It Today will cease to exist
at midnight tonight." -- Dave Newkirk, WJ1Z
------------------------------
Date: Mon, 14 Sep 1992 21:44:04 GMT
From: Jordin Kare <jtk@s1.gov>
Subject: The BB Gun experiment (was Re: Asteroid explorer)
Newsgroups: sci.space
In article <pgf.716428199@srl02.cacs.usl.edu> pgf@srl02.cacs.usl.edu (Phil G. Fraering) writes:
>steinly@topaz.ucsc.edu (Steinn Sigurdsson) writes:
>
>>As per the AO you get $17million (1992) for hardware, R&D,
>>staff etc, same again for launch; mission ops and data analysis
>>are extra. So, put together a CCD camera, a (IR?) spectrometer,
>>a low(medium?) gain antenna, redundant tape recorders, the best CPU
>>and memory that's flight qualified (is the intel chip qualified yet?)
Clementine (SDIO sensor test mission which will do a 2-month lunar mapping
mission followed by an asteroid flyby) will fly a MIPS R-3000-type processor
and 1.6 gigabit solid state memory.
>I've been thinking, though... what we really want from these
>asteroids is structural data. How could we get that?
>
>[Following idea Patent Pending Phil's Crazy Ideas Inc. ...] ;-)
>
>As Marvin Minsky pointed out a short while ago, small fuel tanks
>and large fuel tanks have the same mass to fuel mass ratio. So
>for an ion-drive powered probe you could with little mass overhead
>have lots of small tanks instead of one large tank for your
>fuel. Suppose for example you use six tanks.
Plumbing tends to make multiple small tanks less desirable, but the
differences are small.
>
>Every once in a while in the mission you need to "stage" and
>drop an empty fuel tank. Well, instead you use it: you keep
>it around until you're about to do a flyby of an asteroid.
>A small dogleg/jettision manuever, and you've slammed a fuel tank
>into the asteroid, giving your seismometer network lots of data.
>
>Oh, you don't have a seismometer network on the asteroid?
>Hmmm... what about using a laser rangefinder of some sort,
>to observe the "ringing" in the rock? Would this only be
>feasible for low probe flyby speeds?
Clementine is flying a state-of-the-art laser rangefinder, with
200 mJ laser pulses at up to 8 Hz for a limited number of pulses, or
1 Hz indefinitely. It has a 500 km range and 10 m resolution,
(limited by electronics; could do 3-5 m with some engineering changes).
Not useful for observing seismic vibrations. Unfortunately, interior
composition will probably require rendezvous for the foreseeable future.
What you _can_ do is use impacts to measure the composition of the
top few cm of surface, reaching below surface dust layers. I proposed
an experiment for Clementine, the Impact Plume SPectroscopy experiment,
which would have done this. It was also called the BB gun experiment,
because it involved launching few-gram, BB sized projectiles from a
spring-powered launcher. The BB impacts would occur just before
Clementine passed the asteroid, and the impact flares would be observed
spectroscopically. It's not flying for several reasons, but it would
have been a fun experiment to do.
Jordin Kare
[Disclaimer: any statements made here are my personal opinions
and do not represent the positions of LLNL, the University of California,
or the U.S. Department of Energy]
>
>(which would cause problems: you would like the fuel tank to
>slam in at high speed...)
>
>Well?
>
>--
>Phil Fraering pgf@srl0x.cacs.usl.edu where the x is a number from 1-5.
>Phone: 318/365-5418 SnailMail: 2408 Blue Haven Dr., New Iberia, La. 70560
>
> --> Support UN military force against Doug Mohney <--
--
Jordin Kare jtk@s1.gov 510-426-0363
------------------------------
Date: Mon, 14 Sep 1992 20:21:54 GMT
From: Nick Szabo <szabo@techbook.com>
Subject: The real issue: massive misallocation of funds
Newsgroups: sci.space
In article <1992Sep3.065318.10988@mullet.gu.uwa.edu.au> phew@mullet.gu.uwa.edu.au (Phew) writes:
>
>I fully agree that telepresence has validity in a large number of
>applications. What I would object to is development of telepresence
>as the *sole* means of presence in space.
This isn't the important issue. The issue is a NASA budget that puts nearly
2/3 of its space funds towards astronaut projects, and less than 1%
towards telepresence. Does that reflect the potential contributions
of each? I think not.
--
szabo@techbook.COM Tuesday, November third ## Libertarian $$ vote
Tuesday ^^ Libertarian -- change ** choice && November 3rd @@Libertarian
------------------------------
Date: Mon, 14 Sep 1992 22:09:54 GMT
From: TS Kelso <tkelso@afit.af.mil>
Subject: Two-Line Orbital Element Set: Space Shuttle
Newsgroups: sci.space
The most current orbital elements from the NORAD two-line element sets are
carried on the Celestial BBS, (513) 427-0674, and are updated daily (when
possible). Documentation and tracking software are also available on this
system. As a service to the satellite user community, the most current
elements for the current shuttle mission are provided below. The Celestial
BBS may be accessed 24 hours/day at 300, 1200, 2400, 4800, or 9600 bps using
8 data bits, 1 stop bit, no parity.
Element sets (also updated daily), shuttle elements, and some documentation
and software are also available via anonymous ftp from archive.afit.af.mil
(129.92.1.66) in the directory pub/space.
STS 47
1 22120U 92 61 A 92258.25000000 .00075928 00000-0 25599-3 0 72
2 22120 56.9999 99.9735 0008844 286.2039 176.6558 15.89394833 261
--
Dr TS Kelso Assistant Professor of Space Operations
tkelso@afit.af.mil Air Force Institute of Technology
------------------------------
End of Space Digest Volume 15 : Issue 203
------------------------------