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Path: utzoo!linus!decvax!harpo!seismo!hao!hplabs!sri-unix!Brahms@USC-ECLC
From: Brahms@USC-ECLC@sri-unix.UUCP
Newsgroups: net.space
Subject: TDRS Shuttle Coverage
Message-ID: <3169@sri-arpa.UUCP>
Date: Sun, 17-Jul-83 20:43:00 EDT
Article-I.D.: sri-arpa.3169
Posted: Sun Jul 17 20:43:00 1983
Date-Received: Mon, 18-Jul-83 23:19:39 EDT
Lines: 21

From:  Bradley S. Brahms 

In a recent message it was stated that with three working TDRS
satellites the shuttle would be in contact with earth 100% of
the time.  Yet with only TDRS-1 working the shuttle would be
in contact only 20% of the time.

Question: Why only 20% and not more?

Something seems wrong with this statement.  The only way the shuttle
could be in contact with earth 100% of the time with only three
satellites would be if each covered 33.33% of the orbital paths.
If you include the current ground base tracking system, of course
some of it would overlap TDRS-1, a number around 38% or so
comes up.

Would someone please explain to me this delima(sp?)?  Thank You.

                                        -- Brad Brahms
                                           (Arpa: Brahms@Usc-Eclc)
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