Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
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Path: utzoo!linus!decvax!harpo!eagle!alice!alb
From: alb@alice.UUCP
Newsgroups: net.space
Subject: Re: sattelites
Message-ID: <2043@alice.UUCP>
Date: Sat, 16-Jul-83 14:35:10 EDT
Article-I.D.: alice.2043
Posted: Sat Jul 16 14:35:10 1983
Date-Received: Sat, 16-Jul-83 20:32:33 EDT
References: <3015@sri-arpa.UUCP>
Organization: Bell Labs, Murray Hill
Lines: 9

Once all three TDRS satellites are up and working, the shuttle will
be able to sustain ground-space communications 100% of the time, NOT
80-90%.

As for Spacelab, as long as TDRS-1 is found to be functional, Spacelab
will go up in September as planned, but it will only be in contact
with the ground 20% of the time, so some data will be lost.  At least,
this is what NASA says now.  If TDRS-1 does not work, STS-9 will not
carry Spacelab.