Analysis of instrumental observations of the Jesenice meteorite fall on April 9, 2009

Details Analysis of instrumental observations of the Jesenice meteorite fall on April 9, 2009 Analysis of instrumental observations of the Jesenice meteorite fall on April 9, 2009

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010m%26ps...45.1392s&link_type=abstract

Meteoritics and Planetary Science, Volume 45, Issue 8, pp. 1392-1407.

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Scientific paper

We report an analysis of instrumental observations of a very bright fireball which terminated with a meteorite fall near the town of Jesenice in Slovenia on April 9, 2009, at 0h59m46sUT. The fireball designated EN090409 was recorded photographically and photoelectrically by two southern stations of the Czech part of the European Fireball Network (EN). Simultaneously, a part of the luminous trajectory was also captured by two all-sky CCD systems and one video camera of the Slovenian meteor network. In addition to these optical recordings, the sonic booms produced by the Jesenice fireball were detected at 16 seismic stations located within 150km of the trajectory. From all these records, we reconstructed the fireball's atmospheric trajectory, basic geophysical data, the possible impact area, and the original heliocentric orbit of the meteoroid. Using a detailed fireball light curve, we modeled the atmospheric fragmentation of the meteoroid. Both the atmospheric behavior and the heliocentric orbit proved to be quite normal in comparison with other observed meteorite falls. The Jesenice orbit is markedly different from the Příbram and Neuschwanstein orbital meteorite pair, which fell on similar dates (April 7, 1959, and April 6, 2002, respectively). Three meteorites with a total weight of 3.6kg (until April 2010) were found in a high mountain area near the town of Jesenice. They are classified as L6 ordinary chondrites (Bischoff et al. 2010).

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