EN310800 Vimperk fireball: probable mereorite fall of an Aten type meteoroid

Details EN310800 Vimperk fireball: probable mereorite fall of an Aten type meteoroid EN310800 Vimperk fireball: probable mereorite fall of an Aten type meteoroid

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.495..519s&link_type=abstract

In: Proceedings of the Meteoroids 2001 Conference, 6 - 10 August 2001, Kiruna, Sweden. Ed.: Barbara Warmbein. ESA SP-495, Noordw

Physics

3

Fireballs, Meteoroids

Scientific paper

We report a detection of an unique fireball photographed at two Czech stations of the European Fireball Network (EN). This slow-moving fireball with initial velocity of only 15 km/s reached the maximum absolute brightness -13.8 magnitude and penetrated down to almost 20 km. The meteorite fall of several pieces of the total mass of several kilograms is highly probable. However, no meteorite has been recovered yet. From one very rough spectral record and also from its behavior in the atmosphere we found that it was stony meteoroid, probably ordinary chondrite. The main exceptionality of this fireball is in its heliocentric orbit, with semimajor axis only 0.8 AU, eccentricity 0.3, aphelion 1.03 AU and inclination 17 degrees. This rare Aten type orbit is only third one in the history of decades-long operation of the EN.

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