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Strewn Field Simulations and Field Searchs of a Few Latest Bolides Over Hungary - Connection with the Fragmentation Height

Hegedüs, Tibor and Jäger, Zoltán and Csizmadia, Szilard and Zelkó, Zoltán and Gucsik, Arnold and Kereszty, Zsolt (2019) Strewn Field Simulations and Field Searchs of a Few Latest Bolides Over Hungary - Connection with the Fragmentation Height. In: LPI Contribution, 2132, p. 1474. 50th Lunar and Planetary Science Conference, 2019-03-18 - 2019-03-22, The Woodlands, Texas, USA.

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Official URL: https://www.hou.usra.edu/meetings/lpsc2019/pdf/1474.pdf


nspired by several unsuccessful field searches on the probable fall locations, we reanal-ised a few most recently observed blowing bolides ap-peared over Hungary on: 18:47:33 UTC 8 April, 2018; 17:31:01 UTC April 06, 2015 (so-called "Easter Bo-lide"); and 19:02:08 UTC August 24, 2013. This study is based on careful recalibration of all available obser-vational materials, and both the visual orbit calculation and dark flight integration were done with codes de-veloped by us. For atmospheric model we used the International Standard Atmosphere (ISA1975), while the concrete meteorological parameters of the given dates were taken from ECMWF tables. We simulated the 'theoretical' strewnfields, showed some example on the logged real field searches and gave some com-ments. Finally we present a simple comparison of the structure and sizes of the calculated strewn fields to the well-studied historical strewnfields. Some conse-quences are deduced for the present and next field searches. A typical freefall starts about 25 km height or even higher, where the final desintegrations happen usually. Under this initial parameter the fragments are thrown along a longer strip, which makes the field searches to exhibit very low effectivity. Only some lucky circumstances (like the fortunate geometry of meteor path), better quality professional camera input data and additional technics (radar or accurate seismic detection) can help to find new fell meteorites.

Item URL in elib:https://elib.dlr.de/131771/
Document Type:Conference or Workshop Item (Poster)
Title:Strewn Field Simulations and Field Searchs of a Few Latest Bolides Over Hungary - Connection with the Fragmentation Height
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Hegedüs, TiborBaja Observatory of the University of SzegedUNSPECIFIEDUNSPECIFIED
Jäger, ZoltánBaja Observatory of the University of SzegedUNSPECIFIEDUNSPECIFIED
Zelkó, ZoltánVega Astronomical Association (Zalaegerszeg, Hungary)UNSPECIFIEDUNSPECIFIED
Gucsik, ArnoldUniversity of Debrecen, Department of Mineralogy and GeologyUNSPECIFIEDUNSPECIFIED
Kereszty, ZsoltCorona Borealis Observatory (Győrújbarát, Hungary)UNSPECIFIEDUNSPECIFIED
Date:18 March 2019
Journal or Publication Title:LPI Contribution
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 1474
Series Name:LPI Contribution
Keywords:meteor meteorite fireball
Event Title:50th Lunar and Planetary Science Conference
Event Location:The Woodlands, Texas, USA
Event Type:international Conference
Event Start Date:18 March 2019
Event End Date:22 March 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben Planetary Evolution and Life (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Csizmadia, Szilard
Deposited On:02 Dec 2019 11:03
Last Modified:24 Apr 2024 20:35

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