A list member kindly pointed out that there was more than a few seconds deleted from this video. I didn't look at the minutes figure.
The meteor is overhead at 43:06 and the shockwave arrives at 44.34. So this puts the altitude about three times the 8.7km estimated by Bob Matson. From: http://en.wikipedia.org/wiki/Speed_of_sound#Altitude_variation_and_implications_for_atmospheric_acoustics http://en.wikipedia.org /wiki/File:Comparison_US_standard_atmosphere_1962.svg the speed of sound varies somewhat. Since this is a large positive pressure wave, maybe it would travel somewhat faster than a small pressure wave at these higher altitudes. Sticking with the 310 metre/sec guesstimate of Bob Matson, 98 seconds gives us 30.4 km. - Robin ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
