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From: brody@eos.arc.nasa.gov (Adam R. Brody)
Newsgroups: sci.space.shuttle,sci.space
Subject: Mars
Keywords: conjunction, opposition
Message-ID: <8113@eos.arc.nasa.gov>
Date: 2 May 91 21:28:08 GMT
Followup-To: poster
Organization: NASA Ames Research Center, California
Lines: 3

Can someone briefly describe the differences between conjunction
and opposition class missions in terms of relevant geometry
and duration?