[meteorite-list] 2004 MN4 size estimate

From: Matson, Robert <ROBERT.D.MATSON_at_meteoritecentral.com>
Date: Mon Dec 27 12:23:44 2004
Message-ID: <AF564D2B9D91D411B9FE00508BF1C86904EE62AA_at_US-Torrance.mail.saic.com>

Hi Stan and List,

> according to the link i posted earlier the explosive yield of an impact
> would be equivalent to about 1.4 gigatons

This estimate is based on a guess for the object's reflectivity. If it's
especially dark, the mass and thus energy could be quite a bit greater.
Hopefully Arecibo (or Goldstone) is planning to ping it soon while it's
still near its current close approach.

--Rob
Received on Mon 27 Dec 2004 12:19:30 PM PST