I am sure that is correct because we had a very high Shuttle reentry here over Seattle about ten years ago. It was about 50 miles high and only had a single boom but followed by "rolling thunder" for a few seconds. Since it was a single object I would be inclined to say the later thunder was from terrain features but I supposed some sort of effect from atmospheric density layers could be an explanation. Dale -----Original Message----- From: Allen Thomson [mailto:thomsona@flash.net] > Multiple boom followed by a few seconds of "rolling thunder". The "rolling thunder" seems to be a feature of such events. I was in El Paso in October 1997 when a bolide exploded a bit east of town and heard similar rumbling: http://tinyurl.com/yulpu My suppostion is that it's produced by reflections of the primary boom from local terrain features, but it would be interesting to find out for sure. ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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