> Wasn't Lost City a Prairie Fire Ball Network find with calculated > orbital data? > > Elton
Hi Elton, Dough, Yes, and the orbit is different from 2003 EH1 and the Quadrantids in most notably the semi-major axis (a) and the inclination (i): object q a e i omega node pi Lost City 0.967 1.661 0.417 12.0 161.0 283.000 84.0 Quadrantids 0.979 3.14 0.69 72 171.2 283.3 94.5 2003 EH1 1.192 3.128 0.619 70.8 171.4 282.938 94.3 In terms of Drummond's D' criterion the orbit of Lost City compares to that of 2003 EH1 with D' 0.40, which is four times the value usually accepted as the upper treshold: and to the orbit of the Quadrantids with D' 0.42. In other words: there is not much similarity. By contrast, the D' criterion value of 2003 EH1 to the average Quadrantid orbit is 0.11 - Marco ------ Dr Marco Langbroek Dutch Meteor Society (DMS) Leiden, the Netherlands 52.15896 N, 4.48884 E (WGS 84) [EMAIL PROTECTED] http://home.wanadoo.nl/marco.langbroek ------ ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
