Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from beak.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl) (->ota+space.digests) ID ; Wed, 14 Nov 1990 01:26:28 -0500 (EST) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Wed, 14 Nov 1990 01:25:57 -0500 (EST) Subject: SPACE Digest V12 #544 SPACE Digest Volume 12 : Issue 544 Today's Topics: Space Station mission Re: LLNL Astronaut Delivery Spectacular event over Europe Hubble Space Telescope Update - 11/03/90 Re: Payload Status for 11/08/90 (Forwarded) Re: LLNL Astronaut Delivery (was Re: You Can't Expect a Space Station) [l/m 7/5] Reminders for Old Farts Magellan Update - 11/09/90 Re: orbiting bodies Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription notices, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 9 Nov 90 22:30:30 GMT From: gandalf.cs.cmu.edu!lindsay@PT.CS.CMU.EDU (Donald Lindsay) Organization: Carnegie-Mellon University, CS/RI Subject: Space Station mission References: <2669@polari.UUCP>, <9011072124.AA13810@iti.org>, <2688@polari.UUCP> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <2688@polari.UUCP> crad@polari.UUCP (Charles Radley) writes: >It looks more like Freedom and LLNL could be COMPLIMENTARY, since >they appear to have different missions. The question is, which >mission(s) is/are the right ones. Speaking as a scientist, I think that we will get a lot more science if: - a station is actually lofted. Freedom is looking doomed. - continuous, permanent manned presence in space is THE PRIMARY goal. Congress can postpone the next wonder toy, but they can't call the crews home. Besides, what _I_ want researched, is how to live off- Earth. Now, there's a mission. >You get cheap empty shells, it costs plenty to fit them out with >state of the art scientific equipment. LLNL may be lighter and >cheaper than using metal modules a' la Freedom, but most of >Freedom's weight and cost is in the science and support equipment, >the module structure is small fraction of the total. I think you have just destroyed your argument that LLNL will wind up as expensive as Freedom. LLNL won't loft the science equipment. This is smart: the alternative is no space station, and then there _really_ won't be any science done. -- Don D.C.Lindsay ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 9 Nov 90 18:25:25 GMT From: thorin!homer!leech@mcnc.org (Jonathan Leech) Organization: University Of North Carolina, Chapel Hill Subject: Re: LLNL Astronaut Delivery References: <2669@polari.UUCP>, <9011072124.AA13810@iti.org>, <2688@polari.UUCP> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <2688@polari.UUCP> crad@polari.UUCP (Charles Radley) writes: >+Freedom FEL comes up there will be TWENTY flights ahead of you. Is >+Freedom going to tell those people to take a hike? >- >It is similar to a planetary mission with fixed launch windows, >Ulysses and Galileo got up on schedule, and other flights worked >around them. I expect Fred will be as 'on schedule' as Galileo - first planned for launch in 1982, slipped to the end of the decade due almost entirely to shuttle-related problems including lack of suitable shuttle-qualified upper stages and 3 years of downtime. -- Jon Leech (leech@cs.unc.edu) __@/ ``Scientific progress goes "Boink"?'' - Hobbes ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 9 Nov 90 12:10:04 GMT From: mcsun!cernvax!chx400!ugun2b!ugobs!pfenniger@uunet.uu.net Organization: University of Geneva, Switzerland Subject: Spectacular event over Europe Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu A spectacular event occurred on Nov. 5, around 18h UT (19h local time) over a large part of western Europe. Something similar to a big meteorite or satellite atmospheric reentry has been observed by thousands of people, going from western France, Switzerland, northern Italy, and south Germany, well over 1000 km. Most of the people have seen a series of yellow, red 'stars' running parallel, a luminous tail, and do not have heard any bang. The reported time to cross the sky varies wildy, from minutes to a few seconds. The estimated luminosity is comparable to the full moon. Most of the air traffic radars do not have detected anything, indicating a high altitude (~100km). Could someone with connection to NASA, NORAD tells if the satellite hypothesis can be rejected ? Such a large orbiting object should have been tracked. I ask this to the net, because we get hundred of phone calls for more precise information, by anguished people and journalists. Daniel Pfenniger, Geneva Observatory (University of Geneva) ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 9 Nov 90 23:33:49 GMT From: usc!elroy.jpl.nasa.gov!jato!mars.jpl.nasa.gov!baalke@apple.com (Ron Baalke) Organization: Jet Propulsion Laboratory, Pasadena, CA. Subject: Hubble Space Telescope Update - 11/03/90 Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu HST STATUS REPORT November 3, 1990 GODDARD HIGH RESOLUTION SPECTROMETER (GHRS): All phases of a fine alignment test went well. Analysis showed that all edges of both the large (2 arc second square) science aperture and the small (1/4 arc second square) science aperture were scanned as planned. That means that the star was placed in the center of the aperture, then moved in and out of the aperture in different directions (edges). These tests are done to facilitate future movements of the telescope to line up a particular star in the aperture. This test marked the first time a star was placed in the small science aperture. HIGH SPEED PHOTOMETER (HSP): Focus and aperture map test with the ultraviolet detector was performed successfully. FAINT OBJECT SPECTROGRAPH (FOC): Obtained three good spectra on Seyfert Galaxy NGC 1068. WIDE FIELD/PLANETARY CAMERA (WF/PC): Completed ultraviolet flood guiding test in which the flood mirror successfully was commanded into the flood position. Sixteen exposures of the Sun were taken. This is in preparation for a later activity in which ultraviolet light will be aimed at the instrument's charged coupled devices (CCDs), which need ultraviolet light. ASTROMETRY: A test of the parameters of binaries (a system of two stars that revolve around their common center of gravity) was "overwhelmingly successful." Five good scans out of five fine locks were obtained. From these observations, a much better orbit can be derived on a binary star. ___ _____ ___ /_ /| /____/ \ /_ /| | | | | __ \ /| | | | Ron Baalke | baalke@mars.jpl.nasa.gov ___| | | | |__) |/ | | |___ Jet Propulsion Lab | baalke@jems.jpl.nasa.gov /___| | | | ___/ | |/__ /| M/S 301-355 | |_____|/ |_|/ |_____|/ Pasadena, CA 91109 | ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 9 Nov 90 14:07:09 GMT From: sdd.hp.com!samsung!cs.utexas.edu!news-server.csri.toronto.edu!qucis!akerman@ucsd.edu (Richard Akerman) Organization: Physics Department, Queens University, Kingston, Ontario, Can. Subject: Re: Payload Status for 11/08/90 (Forwarded) References: <1990Nov8.222606.3750@news.arc.nasa.gov> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <1990Nov8.222606.3750@news.arc.nasa.gov> yee@trident.arc.nasa.gov (Peter E. Yee) writes: > > Daily Status/KSC Payload Management and Operations 11-08-90 > > - STS-35 ASTRO-1/BBXRT (at Pad-B) > > Engineering evaluation of the AST experiment which was > contacted by a finger platform yesterday continues. BBXRT > liquid argon servicing will be performed today. ^^^^^^^^^^^^^^^^^^^^^^ I find many of the acronyms in the Payload Status report indecipherable but this in particular has been puzzling me. I see frequent mentions of "argon servicing for the Astro-1". What exactly is the purpose of this servicing? Does the payload need some sort of inert environment? Richard Akerman Incompetent Physics Grad. Student Astronomy/Astrophysics Group ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 10 Nov 90 02:31:14 GMT From: usc!samsung!munnari.oz.au!brolga!bunyip.cc.uq.oz.au!iceman!eempa@apple.com (M Parigi) Organization: JCUNQ, Townsville, Qld, Australia Subject: Re: LLNL Astronaut Delivery (was Re: You Can't Expect a Space Station) References: <9011061342.AA16405@iti.org>, <2669@polari.UUCP>, <1990Nov7.175448.17819@zoo.toronto.edu> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <1990Nov7.175448.17819@zoo.toronto.edu>, henry@zoo.toronto.edu (Henry Spencer) writes: > In article <2669@polari.UUCP> crad@polari.UUCP (Charles Radley) writes: > > If you don't believe me, ask the Australian Cape York Space Agency > >what is giving them their biggest headache.....they want to get a US > >company to operate Soviet Zenit launch vehicles, and the US State > >Dept is saying - "forget it !" > > References Please. This is now been reduced to the second biggest headache! The aboriginals (native Australians) who live in the general vicinity of the Cape York Site are giving them the biggest headache. They think they own the whole of Australia (their ancestors actually did) and they aren't going to move from their wilderness paradise living off social security payments for anyone (especially for "highly desructive developments"). The greenies around here have given their cause a great deal of credibility. They are opposing all developments here. Hopefully, public opinion will sway against them. With our economy going into recession, this is just the sort of high-tech development that we need more of. Disclaimer:- a lot of people in my university disagree with me. Marco Parigi, James Cook University of North Queensland ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 9 Nov 90 12:00:29 GMT From: julius.cs.uiuc.edu!usc!elroy.jpl.nasa.gov!jarthur!nntp-server.caltech.edu!mustang!data.nas.nasa.gov!amelia!eugene@apple.com (Eugene N. Miya) Organization: NAS Program, NASA Ames Research Center, Moffett Field, CA Subject: [l/m 7/5] Reminders for Old Farts Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu Hints for old users (subtle reminders) You'll know these. Minimize cross references, [Do you REALLY NEED to?] Edit "Subject:" lines especially if you are taking a tangent. Send mail instead, avoid posting follow ups. [1 mail message worth 100 posts.] Internet mail readers: send requests to add/drop to SPACE-REQUEST not SPACE. Read all available articles before posting a follow-up. [Check all references.] Cut down attributed articles. Summarize! Put a return address in the body (signature) of your message (mail or article), state institution, etc. don't assume mail works. Use absolute dates. Post in a timely way. Don't post what everyone will get on TV anyway. Some editors and window systems do character count line wrapping: please keep lines under 80 characters for those using ASCII terms (use ). ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 10 Nov 90 05:35:40 GMT From: elroy.jpl.nasa.gov!jato!mars.jpl.nasa.gov!baalke@decwrl.dec.com (Ron Baalke) Organization: Jet Propulsion Laboratory, Pasadena, CA. Subject: Magellan Update - 11/09/90 Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu MAGELLAN STATUS REPORT November 9, 1990 The Magellan spacecraft is performing nominally. The daily STARCALS (star calibrations) and twice daily DESATS (desaturations) continue to go well. Yesterday, track 4 of the Tape Recorder A was successfully played back, and track 1 of the Tape Recorder B was positioned for playback today. It contains the results of the STARCALS performed during Superior Conjunction. Several of the command uplinks were rejected due to sun effects, but mapping restart remains on schedule. The decision for GO on the mapping restart will be made today, and execution of the sequence will be made on orbit 787 at 4:07 AM (PST) tomorrow on November 10. The radar sensor remains in standby mode. Eleven new standard image swaths were produced, but one of these products is being held for a quality check. ___ _____ ___ /_ /| /____/ \ /_ /| | | | | __ \ /| | | | Ron Baalke | baalke@mars.jpl.nasa.gov ___| | | | |__) |/ | | |___ Jet Propulsion Lab | baalke@jems.jpl.nasa.gov /___| | | | ___/ | |/__ /| M/S 301-355 | |_____|/ |_|/ |_____|/ Pasadena, CA 91109 | ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 9 Nov 90 19:57:32 GMT From: puppsr5!marty@princeton.edu (Marty Ryba) Organization: Dept. of Physics, Princeton U. Subject: Re: orbiting bodies References: <1516.27389CA9@ofa123.fidonet.org>, <1990Nov9.083328@ecn.purdue.edu> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <1990Nov9.083328@ecn.purdue.edu>, cyliax@ecn.purdue.edu (Ingo Cyliax) writes: |> So is it common for moons to have the same axial rotational period |> as the orbital period, so that only one side is visibilty from the |> planet. If it is, what are the reasons for that ? Well, a rather technical reference is Alexander, M. E. 1973, "Astrophysics and Space Science," v. 23, p. 459. He numerically models close binary systems and specifically the Earth-Moon system computing the time scales for synchronization of rotation and circularization of the orbit by tidal forces. A short and more readable paper is Press, Wiita and Smarr, 1975, "Ap. J. (Letters)," v. 202, p. L135. They concentrate on how to get strong viscosities in close binaries (stars), but give more readable formulae for tidal locking timescales. Eventually the Earth's rotation will be slowed to match the moon's. Tides dissipate rotational energy. Anyone with a rough number for the earth's mean viscosity??? -- Marty Ryba | slave physics grad student Princeton University | They don't care if I exist, Pulsars Unlimited | let alone what my opinions are! marty@pulsar.princeton.edu | Asbestos gloves always on when reading mail ------------------------------ End of SPACE Digest V12 #544 *******************