At 05:48:12 UT on June 8, 4 NASA all sky meteor cameras detected a bright (-6 magnitude) fireball north of Tullahoma, Tennessee, moving slightly east of north at 24.5 km/sec. Even though it was first picked up at an altitude of 87.4 km, the meteor penetrated unusually low in the atmosphere, reaching 30.5 km altitude before track was lost. A crude estimate from the preliminary light curve puts the meteor mass in the kilogram size range.
Event summary: Start position: 85.961 W, 35.518 N at an altitude of 87.4 km Loss of track at: 85.923 W, 35.789 N at an altitude of 30.5 km Average speed: 22.2 km/s Initial speed: 24.5 km/s Speed at loss of track: 9.5 km/s Tisserand parameter of 3.4 indicates an asteroidal origin More details, including movies and composites, can be found at http://fireballs.ndc.nasa.gov/20120608.html Bill Cooke NASA Meteoroid Environments Office Marshall Space Flight Center ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
