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Article #6715Re: Sea floor Planetary Protection really.
From: Henry Spencer
Date: Thu, 31 Dec 1992 23:18
Date: Thu, 31 Dec 1992 23:18
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In article <1992Dec31.204838.14165@twisto.eng.hou.compaq.com> mccreary@sword.eng.hou.compaq.com (Ed McCreary) writes:
>... After it's mission is finished, MO will be raised to a high
>enough orbit to prevent it's re-entry for X thousand years.
This may be a little academic, since as I recall, as of its shutdown in
1972, Mariner 9's estimated orbital lifetime was only half a century.
--
"God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
-Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
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Newsgroups: sci.space Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!torn!utzoo!henry From: henry@zoo.toronto.edu (Henry Spencer) Subject: Re: Sea floor Planetary Protection really. Message-ID: <C05Cr9.991@zoo.toronto.edu> Date: Thu, 31 Dec 1992 23:18:42 GMT References: <C03tGM.DpE.1@cs.cmu.edu> <1hvg8sINNppt@mirror.digex.com> <1992Dec31.204838.14165@twisto.eng.hou.compaq.com> Organization: U of Toronto Zoology Lines: 9