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From: KFL@MC.LCS.MIT.EDU ("Keith F. Lynch")
Newsgroups: net.space
Subject: Ulysses probe
Message-ID: <[MC.LCS.MIT.EDU].836296.860303.KFL>
Date: Mon, 3-Mar-86 02:05:00 EST
Article-I.D.: <[MC.LCS.MIT.EDU].836296.860303.KFL>
Posted: Mon Mar  3 02:05:00 1986
Date-Received: Tue, 4-Mar-86 01:56:05 EST
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    From: brahms!desj@ucbvax.berkeley.edu  (David desJardins)

       I don't have any idea what these people are talking about.  The whole
    idea is that Ulysses is being launched to rendezvous with Jupiter just
    like Voyager and Galileo, but it will swing around Jupiter and back over
    the solar pole.  Presumably it will then leave the solar system; what
    would cause it to circle around to the other pole??

  I just spent several hours working out the math, and I am somewhat
confused.  I assume that unlike the Voyager and Pioneer probes, that
Ulysses has some onboard fuel to be used in the vicinity of Jupiter.
If the Jupiter pass is completely passive, as with Pioneer and
Voyager, the furthest out of the ecliptic it could get would be 26
degrees, not 90 degrees as would be necessary to go over either of the
Sun's poles.
  I have proven to my satisfaction that the orbit does not escape from
the solar system but will continue to pass over both poles if it
passes over one.
  Can someone from JPL or NASA give us the facts?
								...Keith