Path: utzoo!attcan!uunet!husc6!mailrus!uflorida!haven!aplcen!aplcomm!stdc.jhuapl.edu!jwm
From: jwm@stdc.jhuapl.edu (Jim Meritt)
Newsgroups: sci.space.shuttle
Subject: Re: Info wanted on Atlantis "secret" mi
Message-ID: <2776@aplcomm.jhuapl.edu>
Date: 22 Dec 88 20:28:55 GMT
References: <684@pyuxd.UUCP> <22000011@m.cs.uiuc.edu> <2721@aplcomm.jhuapl.edu> <3115@sugar.uu.net>
Sender: news@aplcomm.jhuapl.edu
Reply-To: jwm@aplvax.UUCP (Jim Meritt)
Organization: JHU-Applied Physics Laboratory
Lines: 21

In article <3115@sugar.uu.net> peter@sugar.uu.net (Peter da Silva) writes:
}In article <2721@aplcomm.jhuapl.edu>, jwm@stdb.jhuapl.edu (Jim Meritt) writes:
}> In article <22000011@m.cs.uiuc.edu> kenny@m.cs.uiuc.edu writes:
}> }Say again?  Any satellite orbit, over the long run, spends half its
}> }time with its ground track in the night hemisphere.
}> False.
}> Visualize an orbit over the terminator...
}The terminator moves.
}Over the period of a year, the terminator moves 360 degrees (give or take
}a little depending on which "year" we're talking about).

Yep.  You don't think we can match it? Wouldn't want to have to do so
with propellant though.  Fortunately, there are other ways...

(in general, though, for unsteered orbits I bow out.  You are apparently,
as best I can tell, correct)



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