Several of us are considering going unfortunately we won't be able to leave until after Thanksgiving.....
On Nov 18, 2018 12:31 PM, "Matson, Rob D. via Meteorite-list" < [email protected]> wrote: Hi Randy, It hadn't been mentioned yet on the Met-List. I worked this fall last week (unaware that Marc Fries had already done so), so the fortunate result of the independent analysis is that two people came up with the same answer and the exact same radar returns. (I also analyzed the Carrollton, AL, seismic station data which has an unmistakable sonic boom just 106 seconds after the terminal burst of the bolide.) I'm 100% sure these returns are associated with the fall since they are practically colocated with the seismometer. Upper atmospheric winds were high at the time of the fall -- jet stream was about 125 knots blowing almost due east. This is why the Doppler radar returns subsequent to the initial high-altitude westerb return at 15 km are displaced to the east of it. At the altitudes below the 2.5-km altitude radar cluster, the winds were below 30 knots and blowing more to the southeast or ESE. This is supported by the small southeastward shift from the central, linear-looking return, and the wider cluster to its lower right that was scanned less than a minute later. The first place I would search would be the southeast edge of the 2.5-km altitude cluster. Unfortunately, this is a tough search area. --Rob ________________________________________ From: Meteorite-list [[email protected]] on behalf of Korotev, Randy via Meteorite-list [meteorite-list@ meteoritecentral.com] Sent: Sunday, November 18, 2018 8:26 AM To: [email protected] Subject: EXTERNAL: [meteorite-list] possible Alabama lunar meteorite fall If there has been discussion of this on the List, I missed it https://ares.jsc.nasa.gov/meteorite-falls/ ~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+ Randy L. Korotev Research Professor, retired Department of Earth & Planetary Sciences Washington University in Saint Louis ______________________________________________ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] https://pairlist3.pair.net/mailman/listinfo/meteorite-list
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