Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from hogtown.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, 26 Jun 91 04:44:21 -0400 (EDT) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Wed, 26 Jun 91 04:44:17 -0400 (EDT) Subject: SPACE Digest V13 #717 SPACE Digest Volume 13 : Issue 717 Today's Topics: LOW LATITUDE AURORAL ACTIVITY WARNING - HIGH RISK! GEOMAGNETIC STORM WARNING - ALERT! - MAJOR SHOCK ARRIVED Re: SPACE Digest V13 #616 Arianespace / ESA address Re: Fred's Operatic Death Re: orbiter production Re: Fred's Operatic Death SIGNIFICANT SOLAR FLARE ALERT - 09 JUNE - IMPACT EXPECTED Re: ComStore: What happened? Space Flight Simulator for the Amiga Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription requests, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Date: Sat, 8 Jun 91 19:56:48 MDT From: oler <@BITNET.CC.CMU.EDU:oler@HG.ULeth.CA> (CARY OLER) Subject: LOW LATITUDE AURORAL ACTIVITY WARNING - HIGH RISK! X-St-Vmsmail-To: st%"space+@andrew.cmu.edu" /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ LOW LATITUDE AURORAL ACTIVITY WARNING UPDATED: 01:30 UT - 09 JUNE, 1991 VALID: 09 - 10 JUNE /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ ATTENTION: A major interplanetary shock arrived at 00:40 UT on 09 June. This event has been followed by major geomagnetic storming since the shock arrived (one hour ago). A major auroral storm is expected to develope during the local evening hours tonight (08 June, local time) and may extend through to tommorrow night as well (09 June, local time). Conditions should be very favorable for observing auroral activity. Lunar phase should not interfere until near morning twilight. Auroral activity may be seen by observers in the central to possibly southern U.S.. Please report any auroral activity sitings to: OLER@HG.ULETH.CA, OLER@ALPHA.ULETH.CA, or by snail-mail to: Solar Terrestrial Dispatch, Box 357, Stirling, Alberta, Canada, T0K 2E0. We thank all those who take the time to send in reports. ** End of Watch ** ------------------------------ Date: Sat, 8 Jun 91 19:47:31 MDT From: oler <@BITNET.CC.CMU.EDU:oler@HG.ULeth.CA> (CARY OLER) Subject: GEOMAGNETIC STORM WARNING - ALERT! - MAJOR SHOCK ARRIVED X-St-Vmsmail-To: st%"space+@andrew.cmu.edu" /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ POTENTIAL GEOMAGNETIC STORM WARNING UPDATED: 01:30 UT, 09 JUNE /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ WARNINGS ISSUED OR IN PROGRESS: - POTENTIAL MAJOR GEOMAGNETIC STORM WARNING - POTENTIAL MAJOR SOLAR FLARE WARNING (PROTON) - POTENTIAL SATELLITE PROTON AND PCA ACTIVITY ALERT - POTENTIAL GIC ANOMALY WARNING ATTENTION: A major interplanetary shock has arrived (less than one hour ago) at 00:40 UT on 09 June. This could be the anticipated interplanetary shock from the very large major flare of 06 June. Minor to major geomagnetic storming could follow shortly with possible periods of severe storm levels, particularly over the high latitude regions. Major geomagnetic storming is in progress at the present time. Auroral activity may become observable from the low latitudes if this materializes into a major geomagnetic storm. Significant auroral storming is expected over the middle to high latitudes, particularly over the central to to northerly middle latitudes. Very strong HF degradations could be observed if this disturbance materializes into the anticipated major geomagnetic storm. If major storming occurs, expect significant levels of fading, flutter, distortion and noise with high levels of isolated periods of absorption over the high latitudes. VHF auroral backscatter conditions could become widespread if major storming develops as anticipated. Conditions are not expected to improve over the next 24 hours. Some improvements should be noticed by 11 June (barring further major flaring, which is expected). PLEASE SEND ANY REPORTS OF DEGRADED RADIO PROPAGATION CONDITIONS, SIGHTINGS OF AURORAL ACTIVITY, VHF BACKSCATTER COMMUNICATIONS OR OTHER ANOMALIES TO: OLER@HG.ULETH.CA (INTERNET), OLER@ALPHA.ULETH.CA (USENET), OR (SNAIL-MAIL) TO: SOLAR TERRESTRIAL DISPATCH, P.O. BOX 357, STIRLING, ALBERTA, CANADA, T0K 2E0. PLEASE INCLUDE THE DATE AND TIME (LOCAL AND UT) OF THE OBSERVATION, THE APPROXIMATE LATITUDE/LONGITUDE OF THE OBSERVATION LOCATION, AND A BRIEF DESCRIPTION OF THE PHENOMENA OBSERVED. WE THANK ALL THOSE WHO TAKE THE TIME TO SEND IN OBSERVATIONAL REPORTS. /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ ------------------------------ Date: 8 Jun 91 12:21:28 GMT From: cis.ohio-state.edu!zaphod.mps.ohio-state.edu!mips!ptimtc!nntp-server.caltech.edu!juliet.caltech.edu!carl@ucbvax.Berkeley.EDU (Lydick, Carl) Subject: Re: SPACE Digest V13 #616 In article <9106080014.AA08875@ucbvax.Berkeley.EDU>, space-request+@ANDREW.CMU.EDU writes... >>(1) Why SHOULD they have tried to contact us? Space is BIG. Why >>should they expend much efford searching every planet in the galaxy >>for life? The first indication they'd get that something interesting >>was happening on earth would be when they started picking up our >>radio broadcasts about 100 years ago so anybody more that 100 light- >>years from us hasn't had time to hear us and respond (Carl Hamlet) >In #1, you assume that the aliens would look for radio transmissions, >but it is safer to assume that a space-travelling species, or at least >a 'sufficiently advanced' species could have located us via the discovery >of liquid water (necessary for life). This, of course assumes they have >space-based astronomy. I was simply assuming that the aliens would want something more interesting than algae to talk to. -------------------------------------------------------------------------------- Carl J Lydick HEPnet/NSI: SOL1::CARL Internet: CARL@SOL1.GPS.CALTECH.EDU ------------------------------ Date: 8 Jun 91 22:22:47 GMT From: cosmosct@athena.mit.edu (Scott A McDermott) Subject: Arianespace / ESA address I am looking for a mail address --- yes, an actual physical-mail address, to which an ink-and-paper letter may be sent! --- for Arianespace, the European Space Agency, or for that matter any other European space-affiliated firm; in particular their "Personnel" or "Human Resources" department, although any address you might have would be much appreciated. Mmm, perhaps I shouldn't be so hard-and-fast about getting a physical-mail address . . . Yes, come to think of it, if you have any relevant E-Mail addresses, please pass them along to me as well. Thank you all very much --- Scott A. McDermott cosmosct@athena.mit.edu "Let me lay my eyes on fleecy skies And the cool, green hills of Earth." --- R.A. Heinlein ------------------------------ Date: 9 Jun 91 00:57:36 GMT From: cis.ohio-state.edu!zaphod.mps.ohio-state.edu!caen!ox.com!hela!aws@ucbvax.Berkeley.EDU (Allen W. Sherzer) Subject: Re: Fred's Operatic Death In article <1991Jun8.034524.8152@zoo.toronto.edu> henry@zoo.toronto.edu (Henry Spencer) writes: >>Meanwhile, Freddy Kreuger is back, and ready to start slashing away >>at space science, NFS, development of commercial space projects... >No, he never left. He's been sitting quietly on the sidelines in his >secret identity: EOS. Indeed. EOS is as big as the Freedom development work and will eat a lot of space science projects. Of course, the AGU will love it. Today Nick Szabo is singing the praises of the AGU because they don't like Freedom. I wonder what he will say about them next year when the AGU is calling for the end of his pet project to feed EOS? Allen -- +---------------------------------------------------------------------------+ |Allen W. Sherzer | DETROIT: Where the weak are killed and eaten. | | aws@iti.org | | +---------------------------------------------------------------------------+ ------------------------------ Date: 9 Jun 91 03:58:17 GMT From: han@apple.com (Byron Han) Subject: Re: orbiter production In article <1991Jun8.013551.2019@iti.org> aws@iti.org (Allen W. Sherzer) writes: >In article <53769@apple.Apple.COM> han@Apple.COM (Byron Han) writes: >>Shuttle being able to launch people into orbit is certainly a very unique >>capability when compared to Titan IV. >Nope. Lots of people have gone up on Titans. But not anymore - the only manned space capability the US has today is, for better or for worse, the shuttle. -- Byron Han, CommToolbox Emir Our CEO makes more than yours... Apple Computer, Inc. -------------------------------------------- 20525 Mariani Ave, MS: 35CP Internet: han@apple.COM Cupertino, CA 95014 AppleLink: HAN1 HAN1@applelink.apple.COM Phone: 1.408.974.6450 CompuServe: 72167,1664 ------------------------------ Date: 8 Jun 91 06:53:11 GMT From: sequent!muncher.sequent.com!szabo@uunet.uu.net Subject: Re: Fred's Operatic Death In article <1991Jun8.034524.8152@zoo.toronto.edu> henry@zoo.toronto.edu (Henry Spencer) writes: >In article <1991Jun7.215211.22450@sequent.com> szabo@sequent.com writes: >>Meanwhile, Freddy Kreuger is back, and ready to start slashing away >>at space science, NFS, development of commercial space projects... > >No, he never left. He's been sitting quietly on the sidelines in his >secret identity: EOS. Henry, I agree with you that EOS is also oversized, but a <$10 billion program just does not produce the same kind of threat as a $120 billion program. When Fred is finished, I'll have a go at turning EOS into something more efficient. Meanwhile, I would just suggest that building 77 more Iridium satellites for $1 billion and putting environment monitoring instruments where the phone cell guts would normally go might be a better approach to the problem. -- Nick Szabo szabo@sequent.com "If you understand something the first time you see it, you probably knew it already. The more bewildered you are, the more successful the mission was." -- Ed Stone, Voyager space explorer ------------------------------ Date: Sat, 8 Jun 91 22:47:37 MDT From: oler <@BITNET.CC.CMU.EDU:oler@HG.ULeth.CA> (CARY OLER) Subject: SIGNIFICANT SOLAR FLARE ALERT - 09 JUNE - IMPACT EXPECTED X-St-Vmsmail-To: st%"space+@andrew.cmu.edu" -- MAJOR SOLAR FLARE ALERT -- JUNE 09, 1991 Flare Event Summary Potential Impact Assessment -------- MAJOR ENERGETIC EVENT SUMMARY A major class X12+/3B flare erupted from Region 6659 (N31E06) at 01:43 UT on 09 June. The event saturated the GOES sensors for approximately three to four minutes before beginning a very slow decay. This LDE event has not yet terminated (x-rays are slowly decaying and are presently near class M2.3 levels). The flare began at 01:34 UT, peaked at 01:43 UT and should end sometime near or after 04:45 UT. A moderate intensity Type II sweep and a major Type IV continuum burst have been observed from this energetic event. The integrated x-ray flux of this event was high, at greater than approximately 1.31 (preliminary estimate). The location of this event was almost directly on the central solar meridian, at N31E01. Region 6659 is continuing to experience growth and increasing complexity. An additional delta configuration has materialized in this region, which continues to exhibit very strong magnetic fields, high shear, and significant magnetic gradients. POTENTIAL TERRESTRIAL IMPACT ASSESSMENT This major flare is well placed for producing high terrestrial impacts. Preliminary analysis indicates minor to major geomagnetic storming can probably be expected near midday (12:00 UT) on 10 June. There is also a moderately high risk for severe geomagnetic storming from this event. A satellite proton enhancement is possible from this latest event. Protons may arrive between 07:00 UT and 09:00 UT on 09 June. Models suggest that protons in the greater than 10 MeV band may reach or possibly exceed 1,500 pfu at that time. Further major flaring (X-class and possible proton flaring) is expected from Region 6659 over the next three to seven days. White light flares may also be possible. ** End of Alert ** ------------------------------ Date: 7 Jun 91 10:28:12 GMT From: cis.ohio-state.edu!zaphod.mps.ohio-state.edu!mips!cs.uoregon.edu!ogicse!intelhf!reed!glacier!thebox!dadams@ucbvax.Berkeley.EDU (Dean Adams) Subject: Re: ComStore: What happened? mike@zorch.SF-Bay.ORG (Mike Smithwick) writes: > Anyone know what happened to the JSC-Video BBS, Comstore? It was up > for the last mission, but now, the phone just rings and nutt'n happens. I managed to get connected to that system tonight, after trying for the past few days... there was no downloading files available, but you could get the last TV sked revision by capturing the logon bulletin. I really wish they could make that system more like Spacelink, and add some of those files... > > > Anyone have the xpnder and time of the spacenet 1 TV-Sat rebroadcasts > of the STS-40 video? Enquiring minds want to know. Last time I seem to remember them doing it at 9:00pm (PST), havn't heard anything about it this time. The regular NASA Select flight day video highlights have been at 6:30pm... -{ Dean Adams }- -- TheBox Public Access Xenix - Gresham OR +1 503-669-7291 +1 503-669-7395 ------------------------------ Date: 8 Jun 91 15:07:59 GMT From: mcsun!unido!eso!lzago@uunet.uu.net (Lorenzo Zago) Subject: Space Flight Simulator for the Amiga I have developed a space flight simulator for the Amiga computer, a complex program which allows to "travel" in the entire Solar System. The space flight simulator is made of a main program which is the actual simulator while several other independent programs (the Amiga has a multi-tasking DOS) constitute the "board computer" functions required to direct the spacecraft to its destination. The main program is written in AmigaBasic (more than 5000 instructions) and compiled with AC-Basic 1.3. Most "board computer" programs are written in C. The program can realistically simulate all types of orbits. Perturbations by other planets are taken into account, allowing a realistic simulation of interplanetary trajectories. Presently its major limitation is that modelization is only 2-dimensional. This is due more to the need for keeping the graphics intelligeable rather than to the relatively little additional mathematical complications. Many different commands are available for orbit manoeuvers. The spacecraft which can be simulated include conventional propulsion rockets as well as future or science-fiction drives such as nuclear pulse and the fusion drive. Documentation files are enclosed, which can also be called as on-line help when running the program. The program is freely available to any interested individual for evaluation and suggestions for improvements, although all right are retained by me. I may in the future ask for a small shareware fee in exchange for additional documentation and sources. Lorenzo Zago UUCP: lzago@eso.uucp -or- eso!uucp 18 Burgerplatz eunet: lzago%eso.uucp@EU.net D-8046 Garching Internet: lzago@eso.org Germany P.S. I am still not very familiar with email, but they tell me that the above address should work (lza should also work as my user name). Also the system manager at our site tells me that we should be able to "ftp" on Internet very soon now. In any case I can send the program on diskettes by (normal) mail. ------------------------------ End of SPACE Digest V13 #717 *******************