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 ; Sat, 10 Mar 90 01:45:28 -0500 (EST) Message-ID: Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Sat, 10 Mar 90 01:44:56 -0500 (EST) Subject: SPACE Digest V11 #131 SPACE Digest Volume 11 : Issue 131 Today's Topics: Re: SR-71 Record Flight Information Re: Ulysses Update - 03/06/90 Voyager Update - 03/09/90 Re: SR-71: LA to DC 1990 VAAS Convention [Portsmouth VA] 1 of 2 Re: EMP Re: Phobos Pictures Re: SR-71 Record Flight Information SR-71 Re: Ulysses Update - 03/06/90 Re: EMP ---------------------------------------------------------------------- Date: 10 Mar 90 00:55:57 GMT From: csusac!csuchico.edu!ian@ucdavis.ucdavis.edu (Ian Kluft) Subject: Re: SR-71 Record Flight Information In article <1990Mar9.201411.18367@cs.umn.edu> gardiner@cs.umn.edu (David Gardiner) writes: >Now that the SR-71 is retired, have the true performance specs been >declassified? Are the published performance specs anywhere near its >actual capabilities? Probably not for a while. Especially not if there's a secret replacement for it hiding in hangars at various AFB's. ------------------------------ Date: 9 Mar 90 17:59:34 GMT From: pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!elroy.jpl.nasa.gov!jato!mars.jpl.nasa.gov!baalke@tut.cis.ohio-state.edu (Ron Baalke) Subject: Re: Ulysses Update - 03/06/90 In article <3588.25f69ddb@vax5.cit.cornell.edu> njzy@vax5.cit.cornell.edu (T. Joseph Lazio, Cornell University) writes: >In article <2988@jato.Jpl.Nasa.Gov>, baalke@mars.jpl.nasa.gov (Ron Baalke) writes: >> 09/11/95 - End of Second Solar Pass >> 09/30/95 - End of Mission > > End of mission? Does this mean that during the last pass, > in attempt to gather some particular datum, that the craft > will be flown close enough to the Sun to fry it, or > end of the scheduled mission and contact with the > craft will continue as it heads toward interstellar space > away from the ecliptic? End of mission, meaning end of its primary mission. Ulysses will remain in orbit around the sun with its orbit going out to Jupiter. Around 1995 or 1996 it will probably be used in some kind of extended mission, much the same way the Voyagers or Giotto are now being used. Ron Baalke | baalke@mars.jpl.nasa.gov Jet Propulsion Lab M/S 301-355 | baalke@jems.jpl.nasa.gov 4800 Oak Grove Dr. | Pasadena, CA 91109 | ------------------------------ Date: 9 Mar 90 18:39:44 GMT From: elroy.jpl.nasa.gov!jato!mars.jpl.nasa.gov!baalke@decwrl.dec.com (Ron Baalke) Subject: Voyager Update - 03/09/90 Voyager Mission Status Report March 9, 1990 Voyager 1 Voyager 1 continues to collect routine cruise science data. One frame of high-rate plasma wave data (PWS) was recorded on February 26. High-rate ultraviolet spectrum (UVS) observations were conducted on MU Centauri (February 27) and HD 206165 (March 1). All of the former observations was lost due to lack of Deep Space Network (DSN) coverage. On February 28, a negative 41.8x roll turn was executed by the spacecraft and Rigil Kentaurus was re-acquired as the roll axis celestial reference. Following the maneuver, the Attitude and Articulation Control Subsystem (AACS) A and B gyros were turned off. AACS Canopus tracker and Sun Sensor Gate parameters were also updated and verified by AACS Memory Read Out following the maneuver. The shutter blades of the wide-angle camera is suspected to be warped when the camera was pointed towards the sun on February 14 to take the "family portrait" pictures. All of Voyager 1's cameras are turned off and there are no further plans to use them again. The first set of pictures will be transmitted back to Earth on March 16 of the planets Neptune and Uranus. March 5 marked the 11th anniversay of Voyager 1's Jupiter encounter. Voyager 2 Voyager 2 also continues to collect routine cruise science data. One frame of high-rate PWS data was recorded on February 26. UVS low-rate data were taken on sources EG165, a white dwarf star, and PKS2155-304. High-rate data were taken on both sources on February 26, but station coverage was unavailable. The MAG, PLS, and LECP instruments all responded to the calibration commands as expected on February 28. Ron Baalke | baalke@mars.jpl.nasa.gov Jet Propulsion Lab M/S 301-355 | baalke@jems.jpl.nasa.gov 4800 Oak Grove Dr. | Pasadena, CA 91109 | ------------------------------ Date: 9 Mar 90 20:03:12 GMT From: amdahl!drivax!braun@apple.com (Kral) Subject: Re: SR-71: LA to DC In article khai@amara.uucp (S. Khai Mong) writes: >In article <25F652B0.22016@orion.oac.uci.edu> dkrause@orion.oac.uci.edu (Doug Krause) writes: >> In article braun@drivax.UUCP (Kral) writes: >> #Their flight path was such that they watched the sun rise and set 3 times >> #(this from an interview with the pilot). A truley awsome experience. >> >> How is this possible? The only thing I can think of is that they >> were constantly changing their altitude. > >Another possible way -- they flew westbound around the world. :-) I've been trying to think this through in spare CPU cyycles (:-), which I've had very few of lately, but I'm sure part of it had to do with ascention/descention and course. EG: Rise Set 1) flying northbound 2) flying southbound time passing 3) secondary ascent final descent (Flying north and south being a result of the shortest line between two distant points on a sphere being a curved (the great circle principle, or whatever it's called)). The missing Rise might be attributed to sloppy wording on the pilot's part. -- kral 408/647-6112 ...amdahl!drivax!braun "To surrender is to remain in the hands of barbarians for the rest of my life; To fight is to leave my bones exposed in the desert waste" - ancient chinese poem ------------------------------ Date: 7 Mar 90 14:59:00 GMT From: xanth!xanth.cs.odu.edu!bianco@g.ms.uky.edu (David J. Bianco) Subject: 1990 VAAS Convention [Portsmouth VA] 1 of 2 For more info, contact: David J. Bianco Internet: bianco@cs.odu.edu 3220 Bangor Drive Chesapeake, VA 23321 16th ANNUAL VAAS CONVENTION MAY 19 - 20, 1990 The 16th annual Virginia Association of Astronomical Societies Convention will be held May 19-20, 1990 on the Portsmouth Campus of Tidewater Community College in Portsmouth, Virginia. This year's convention will be a two day event and will include a cook-out and an observing session. The convention will be hosted by the Tidewater Community College Astronomical Society. The VAAS wwas organized on May 5, 1975 as an association of amateur astronomical societies, individual amateur and professional astronomers, and other interested individuals and organizations. The VAAS provides a once a year gathering through which members from across the state, and visitors from anywhere, can have an opportunity to discuss a wide range of subjects and present research. The following activities/events will be included in this year's convention: 1) Societies' Reports - a representative of each society will be expected to give a shord (15 mins or so) report on their club's activities of the previous year. 2) Guest Speakers - TCCAS is in contact with NASA and other astronomy related institutions and hopes to have several speakers at the convention. 3) Paper and Slide Presentations - Everyone is welcome to participate as a speaker at this convention. Those desiring places on the program should contact the VAAS Chairman as soon as possible and fill out the attached form. 4) Contests-Displays-Exhibits - Space will be made available for individuals and societies to exhibit anything of astronomical interest. Several astronomy related contests will be conducted and awards given (refer to the attached Application form). 5) Observing Session - Two Observing sessions are scheduled. Participants are encouraged to bring their telescopes. 6) Cook Out - This is almost a tradition! We are bringing it back by popular demand! 7) Swap Shop - Everyone is encouraged to bring those no-longer-wanted astronomical items (eyepieces, bookks, telescopes, etc) to sell or trade. A final schedule of events will be mailed [or in this case, posted] during the first week of May, along with maps of the Portsmouth area. If you have any questions or would like more information, please feel free to contact me (see top of the message). Hope to see you at the convention! ----------------------------- APPLICATION PROCEDURES FOR THE 1990 VAAS *PAPER SESSION* Everyone is welcome to participate as a speaker at the convention and is encouraged to submit papers on projects, research studies, etc. Each paper presented is to be no longer than 60 minutes and should be on an astronomy related topic. Papers longer than 60 minutes, or those not strictly on astronomy, must be approved prior to the convention. You must state if you will require any audiovisual equipment. ALL APPLICATIONS FOR PAPER SESSIONS MUST BE RECIEVED BY TCCAS *NO LATER THAN* MAY 1, 1990. To submit your paper, please fill out the following form and mail it (either US mail or email) to the address at the top of this article Name: _________________________________ Phone: ( )_________________ Address: ______________________________ ______________________________ ______________________________ Astronomical Society (if any) : _________________________________________ Title or Subject of Paper: ______________________________________________ _________________________________________________________________________ Audio-Visual Equipment needed: __________________________________________ _________________________________________________________________________ Day you wish to present paper (may change): Saturday __ Sunday __ Brief Description of presentation: ------------------------------ Date: 8 Mar 90 05:57:18 GMT From: agate!headcrash.Berkeley.EDU!gwh@ucbvax.Berkeley.EDU (George William Herbert) Subject: Re: EMP In article <10646@hoptoad.uucp> tim@hoptoad.UUCP (Tim Maroney) writes: >In article <10597@hoptoad.uucp> tim@hoptoad.UUCP (Tim Maroney) writes: >>}It would also take a pretty large hydrocarbon explosion to create EMP. >>If you are trying, it doesn't. You do have to doctor the charge a bit, though. > >How so? A friend who is a well-known hard SF author with a degree in >physics told me (and put in one of his books) that any sufficiently >powerful explosion will cause a shower of Compton electrons from the >upper atmosphere, which is what fries electrical circuits and is what >we call EMP. Is there some additional requirement on the >characteristics of the blast? (I may have misunderstood him, of No. In fact, any explosion that is strong enough to ionize the detonation products will cause EMP [read: all explosions except maybe black powder]. There is some interest in this among the blasting community because it is possible, though remote, to detonate another electrical blasting cap that way. ******************************************************************************* George William Herbert JOAT For Hire: Anything, Anywhere: My Price UCB Naval Architecture undergrad: Engineering with a Bouyant Attitude :-) ------------------------------------------------------------------------------- gwh@ocf.berkeley.edu |||||||||| "What do I have to do to convince you?"-Q gwh@soda.berkeley.edu |||||||||||||||||||||||||||||||||||||||| "Die."-Worf maniac@garnet.berkeley.edu |"Very good, Worf. Eaten any good books recently?"-Q ------------------------------ Date: 8 Mar 90 16:42:07 GMT From: wuarchive!cs.utexas.edu!jarvis.csri.toronto.edu!utgpu!utzoo!henry@decwrl.dec.com (Henry Spencer) Subject: Re: Phobos Pictures In article 04703@AECLCR.BITNET (DAVID SIMMONS) writes: > Have any of the pictures the Soviets got back from their Phobos probe >before it failed been published , and where could I find them? A number of them have been published; a good place to start would be back issues of Scientific American. -- MSDOS, abbrev: Maybe SomeDay | Henry Spencer at U of Toronto Zoology an Operating System. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: 9 Mar 90 20:14:11 GMT From: cs.umn.edu!gardiner@ub.d.umn.edu (David Gardiner) Subject: Re: SR-71 Record Flight Information On the LA->DC run, did the aircraft have to refuel? If so, how many times? Now that the SR-71 is retired, have the true performance specs been declassified? Are the published performance specs anywhere near its actual capabilities? David Gardiner U of MN CS Dept. ------------------------------ Date: 9 Mar 90 23:24:00 GMT From: elroy.jpl.nasa.gov!usc!zaphod.mps.ohio-state.edu!rpi!rpitsmts!forumexp@decwrl.dec.com (Commander Krugannal) Subject: SR-71 Henry Spencer writes that the D-21 launch from the SR-71 was abandonded due to a loss of the a D-21 and the SR-71. This is news to me. If you could substantiate it I would appreciate it. Nothing I have ever seen has mentioned that. The sole reason I have heard that they dropped the program was cost and that it was not totally effective. (And since Open Skies was not in effect, highly illegal... ) Greg_d._Moore@mts.rpi.edu Disclaimer: Why do I need one? everyone else has one! ------------------------------ Date: 9 Mar 90 17:33:05 GMT From: pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!cs.utexas.edu!jarvis.csri.toronto.edu!utgpu!utzoo!henry@tut.cis.ohio-state.edu (Henry Spencer) Subject: Re: Ulysses Update - 03/06/90 In article <3588.25f69ddb@vax5.cit.cornell.edu> njzy@vax5.cit.cornell.edu (T. Joseph Lazio, Cornell University) writes: >> 09/30/95 - End of Mission > > End of mission? Does this mean that during the last pass, > in attempt to gather some particular datum, that the craft > will be flown close enough to the Sun to fry it, or > end of the scheduled mission and contact with the > craft will continue... The latter, I think. There isn't any reason for Ulysses to go up in smoke. That's just the time when everyone will agree that the mission was a success. -- MSDOS, abbrev: Maybe SomeDay | Henry Spencer at U of Toronto Zoology an Operating System. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: 9 Mar 90 20:39:00 GMT From: brutus.cs.uiuc.edu!uakari.primate.wisc.edu!aplcen!aplvax.jhuapl.edu!jwm@lll-winken.llnl.gov (Jim Meritt) Subject: Re: EMP In article <10700@hoptoad.uucp> tim@hoptoad.UUCP (Tim Maroney) writes: }In article <10597@hoptoad.uucp> tim@hoptoad.UUCP (Tim Maroney) writes: }>}>}It would also take a pretty large hydrocarbon explosion to create EMP. } }In article <4839@aplcen.apl.jhu.edu> jwm@aplvax.UUCP (Jim Meritt) writes: }>}>If you are trying, it doesn't. You do have to doctor the charge a bit, }>}>though. } }In article <10646@hoptoad.uucp> tim@hoptoad.UUCP (Tim Maroney) writes: }>}How so? A friend who is a well-known hard SF author with a degree in }>}physics told me (and put in one of his books) that any sufficiently }>}powerful explosion will cause a shower of Compton electrons from the }>}upper atmosphere, which is what fries electrical circuits and is what }>}we call EMP. } }In article <4856@aplcen.apl.jhu.edu> jwm@aplvax.UUCP (Jim Meritt) writes: }>You cheat. Put some of the alkali metals in with the charge. }>[...] Read about it a few years ago in Aviation Leak. Concerned }>a non-nuclear artillery shell with EMP. A nuke does it with brute force. }>Ain't gonna get it by accdent chemically (usless a REAL accident!) } }Which was my point -- it would take one hell of a chemical blast to }produce EMP, even in the upper atmosphere. Thanks for the }information. It's a problem with spacecraft carrying grams of }antimatter, but it isn't with chemical rockets. Right. No problem with chem rockets. } }Also, I'm curious whether these EMP shells were tested. I know there }were some EMP experiments in the Maryland area that Rifkin (gag, choke) }managed to get shut down because there was no research into the health }effects, a few years ago. Is this related? Nah, the pulser was on the shore of the bay at/near PAX river (the base). That that is is that that is. That that is not is that that is not. That that is is not that that is not. That that is not is not that that is. And that includes these opinions, which are solely mine! jwm@aplvax.jhuapl.edu - or - jwm@aplvax.uucp - or - meritt%aplvm.BITNET ------------------------------ End of SPACE Digest V11 #131 *******************