The daylight fireball of June 25, 2022, leading to a meteorite fall and find near Pusté Úľany, Slovakia

1Lukáš Shrbený,1Jiří Borovička,1Pavel Spurný,2Mike Hankey
Meteoritics & Planetary Science (in Press) Link to Article [doi: 10.1111/maps.70119]
1Astronomical Institute of the Czech Academy of Sciences, Ondrejov, Czech Republic
1American Meteor Society, Monkton, MD, USA
Published by arrangement with John Wiley & Sons

We present detailed analysis of a daytime fireball observed on June 25, 2022, which is based on four instrumental video records. The atmospheric trajectory was observed from 69.5 to 21.8 km with a slope of 57.1 degrees to the surface. During the flight, the original body weighing 16 kg fragmented four times and the initial velocity of 19.84 km s−1 decreased to 5 km s−1. The determined heliocentric orbit has a semimajor axis of 1.727 AU, a perihelion distance of 1.00878 AU, and one of the highest inclinations among the meteorite orbits, which is 27.14 degrees. Based on our computations, one meteorite was found in the predicted impact area by Polish searcher Mateusz Żmija on August 20, 2022. The recovered meteorite, Pusté Úľany, is an ordinary chondrite H5 with a mass of 8.6 grams and a bulk density of 3.41 g cm−3.

The smallest pedigree fall event meteorite ever recovered: Pusté Úl’any—Physical, mineralogical, chemical, and radionuclide analyses

1Juraj Toth et al. (>10)
Meteoritics & Planetary Science (in Press) Link to Article [doi: 10.1111/maps.701201]
1Department of Astronomy, Physics of the Earth and Meteorology, Faculty of Mathematics, Physics and Informatics, ComeniusUniversity, Bratislava, Slovakia
Published by arrangement with John Wiley & Sons

Pust´e ´Ul’any (PU) is the smallest recovered pedigree fall event meteorite so farand, moreover, was observed during daylight. The results of physical and mineralogicalanalyses of the new meteorite fall instrumentally observed on June 25, 2022, in the westernpart of Slovakia are presented. The meteorite fragment of 8.55 g mass was recovered onAugust 20, 2022, in the strewn field within 100 m of the predicted area of equivalent massfragments. Mineralogical analyses, computed tomography, physical properties such as bulkand grain densities, as well as magnetic susceptibility were carried out, confirming that PUis an ordinary chondrite of H5 type. Analysis of cosmogenic radionuclides confirmed a freshfall of the meteorite and helped estimate a pre-atmospheric radius of the meteorite to be19 4 cm with a corresponding mass of 98 24 kg, and a minimum cosmic-ray exposureage of 2–3 Myr.