Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!rochester!dietz
From: dietz@cs.rochester.edu (Paul Dietz)
Newsgroups: sci.space.shuttle
Subject: Re: TDRSS and scientific missions
Keywords: spysats
Message-ID: <1989Mar30.130822.20004@cs.rochester.edu>
Date: 30 Mar 89 18:08:22 GMT
References: <386@illusion.UUCP> <1449@cfa183.cfa250.harvard.edu>
Reply-To: dietz@cs.rochester.edu (Paul Dietz)
Organization: U of Rochester, CS Dept, Rochester, NY
Lines: 10

The main reason for TDRSS is to be able to communicate with spy
satellites.  Imagine radar satellites like Lacrosse have insatiable
appetite for bandwidth, and they need this bandwidth while over areas
where there are no cooperative ground stations (i.e., the USSR).  See
the latest issue of Science for an article on the subject.  HST users
cannot know when TDRSS will be preempted, making scheduling a
challenge.

	Paul F. Dietz
	dietz@cs.rochester.edu