Jeff-
For comparison, S-A was a 100 ton body traveling at 14 km/s, and its
energy output was about 10 kT. Chelyabinsk was a 10,000 ton body
traveling at 30 km/s, and its energy output was about 500 kT. So these
two events were in completely different classes. Had S-A been stony, no
material would have arrived at the ground above terminal velocity, and
we'd treat it as a much more ordinary event. Nothing like a few craters
to make a fall seem much more energetic than it actually was.
Chris
*******************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
On 11/7/2013 5:13 AM, Jeff Kuyken wrote:
Thanks for these interesting posts Ron.
I keep hearing lines like "Chelyabinsk was the largest meteoroid strike
since the Tunguska event". What about Sikhote-Alin? Does anyone know if
there are any accurate modellings on that fall in terms of size, weight and
energy? I would be interested to see a comparison.
Cheers,
Jeff Kuyken
Meteorites Australia
www.meteorites.com.au
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