AW: [meteorite-list] Statistics for falls
From: Marc D. Fries <m.fries_at_meteoritecentral.com>
Date: Thu Jun 17 09:49:47 2004 Message-ID: <1864.10.17.14.1.1087480176.squirrel_at_webmail.ciw.edu> Here's a couple of observations from the meteorite fall data set provided earlier... Be advised that I haven't added Joern's data in. 1) You can get a little wacky with it and fit a pretty nice-looking 6th order polynomial, which may be short-period variation or just another case of "oooh; pretty fit!!" syndrome 2) There are no real low-value anomalies, but several prominent spikes in the data (collisions in the asteroid belt? meteorite clusters? orbital just-right-edness?) 3) The overall trend is for a decreasing number of falls, not increasing. This in spite of the fact that information distribution is easier and faster nowadays than ever before. Additionally, there are more people alive today than in 1900 and so more potential witnesses. I'm inclined to believe that the number of falls is truly decreasing. Good stuff! Any thoughts? Cheers, MDF -- Marc D. Fries, Ph.D. Postdoctoral Research Associate Carnegie Institution of Washington Geophysical Laboratory 5251 Broad Branch Rd. NW Washington, DC 20015 PH: 202 478 7970 FAX: 202 478 8901Received on Thu 17 Jun 2004 09:49:36 AM PDT |
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