Re: Cometesimals

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Article #7995

#7995

From: Paul F. Dietz
Date: Mon, 13 Jun 1988 19:01

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In article <18206@cornell.UUCP> dietz@loki (Paul F. Dietz) writes:

> Frank et. al. estimate a density of about 3e-12 cometesimals per
> cubic kilometer.  Travelling at 20 km/sec, the flux of comets
> near the earth would be something like 6e-11 per square kilometer
> per second.  A ten square kilometer powersat would be hit once
> every fifty years, on average.

Correction:  3e-11 per km^3, and 10 km/sec, not 20.  So the powersat
is hit once every ten years, on average, if the cometesimals exist.

	Paul F. Dietz
	dietz@gvax.cs.cornell.edu

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!rutgers!rochester!cornell!dietz
From: dietz@loki.cs.cornell.edu (Paul F. Dietz)
Newsgroups: sci.space
Subject: Re: Cometesimals
Summary: Correction
Message-ID: <18262@cornell.UUCP>
Date: 13 Jun 88 19:01:07 GMT
References: <880608203735.21400546@Iowa> <18206@cornell.UUCP>
Sender: nobody@cornell.UUCP
Reply-To: dietz@loki (Paul F. Dietz)
Organization: Cornell Univ. CS Dept, Ithaca NY
Lines: 13

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