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Article #6332

Re: Relay to follow Galileo?

#6332
From: fisher
Date: Fri, 18 Dec 1992 14:32
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It seems to me that there is a lot of stuff that people have not thought of 
regarding sending a TDRSS after Galileo.  For example, I'm not sure you can
just splice in an RTG in place of solar panels.  Are they the right voltage?
Power?  How about mass distribution and other dynamic considerations?  Are the
thrusters placed correctly now?

How about the thermal environment during the cruise and Jovian orbit?  TDRSS
was designed for the environment of Earth orbit (in particular, Clarke (geo-
synchronous) Earth orbit.

Someone already pointed out the Jupiter insertion burn may need to be higher
thrust/shorter duration than the station keeping engines can provide.  I
suppose
it is conceivable that the Apogee kick motor might be better suited, but I
doubt it given the relative gravity (and thus the incoming probe velocity) at
Jupiter.

Burns
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Message-ID: <1992Dec18.143201.10326@nntpd.lkg.dec.com>
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References: <BzGJ1B.Coq.1@cs.cmu.edu>

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From: fisher@decwin.enet.dec.com ()
Subject: Re: Relay to follow Galileo?
Message-ID: <1992Dec18.143201.10326@nntpd.lkg.dec.com>
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Organization: Digital Equipment Corporation
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Distribution: sci
Date: Fri, 18 Dec 1992 14:32:01 GMT