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, 7 Apr 90 02:15:40 -0400 (EDT) Message-ID: Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Sat, 7 Apr 90 02:15:14 -0400 (EDT) Subject: SPACE Digest V11 #231 SPACE Digest Volume 11 : Issue 231 Today's Topics: Pegasus Specifications Re: Pegasus, what happened ? Re: orbit definitions Re: "Brilliant Pebbles" vs. "Smart Rocks" (was Re: Railgun ...) ---------------------------------------------------------------------- Date: 6 Apr 90 09:57:35 GMT From: unmvax!uokmax!tom@ucbvax.Berkeley.EDU (Tom Egelston) Subject: Pegasus Specifications Well, with all the talk about the successful launch of Pegasus, I've become a little bit curious. Does anyone have the specifications for it, particularly the dimensions, payload capabilities, and perhaps even an approximate cost per pound to orbit? Thanks in advance! -- Tom Egelston Internet: tom@uokmax.ecn.uoknor.edu All opinions expressed are mine. Universities aren't allowed to have opinions. "There's no point in being grown up if you can't be childish sometimes." -- Dr. Who ------------------------------ Date: 6 Apr 90 12:28:47 GMT From: parkins@tcgould.tn.cornell.edu (David Parkins) Subject: Re: Pegasus, what happened ? What happened to Pegasus? I feel like I'm living in a vacume (sp). Also does anyone know of a brokerage house and a broker dealing in the initial offering of OSC stock. dave parkins parkins@patella.tn.cornell.edu Do you really think that Cornell would allow me to speak on its behalf? ------------------------------ Date: 7 Apr 90 03:11:06 GMT From: uhccux!tholen@ames.arc.nasa.gov (David Tholen) Subject: Re: orbit definitions In article <90096.162050MRW104@psuvm.psu.edu>, MRW104@psuvm.psu.edu writes: >A geostationary orbit is a geosynchronous orbit with an inclination and eccen- >tricity of zero. A satellite in this kind of orbit always appears in the same >spot in the sky (somewhere on the ecliptic). Somewhere on the celestial equator, actually, because we're talking about orbits around the Earth. But even that isn't quite true, thanks to parallax. Somebody viewing from the northern hemisphere will see a geosynchronous satellite south of the celestial equator. How much depends on your latitude. Let's see, the north pole is 4000 miles from the equator along the Earth's axis, and geosynchronous orbits are 24000 miles high, so parallax would be a maximum of about 1/6 of a radian, or almost 10 degrees. So somewhere within 10 degrees of the equator is the most general way to refer to the position of such a satellite, as seen from an arbitrary point on Earth. ------------------------------ Date: 7 Apr 90 03:23:53 GMT From: bfmny0!tneff@uunet.uu.net (Tom Neff) Subject: Re: "Brilliant Pebbles" vs. "Smart Rocks" (was Re: Railgun ...) Let's go the other way: Bumbling Boulders Mediocre Menhirs Oafish Outcroppings Muleheaded Mountains Stupid Subcontinents Pinheaded Planetesimals Addled Asteroids Prattling Planets Stupid Stellar-mass Singularities Cretinous Collapsars Numbskulled Neutron-stars Quaaluded Quasars Unteachable Universes Brainless Big Bangs Catatonic Cosmoses etc etc. -- Annex Canada now! We need the room, \) Tom Neff and who's going to stop us. (\ tneff@bfmny0.UU.NET ------------------------------ End of SPACE Digest V11 #231 *******************