Astronomical School’s Report, 2009, Volume 6, Issue 1, Pages 30–43

https://doi.org/10.18372/2411-6602.06.1030
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UDC 550.388, 520.16+523.31+523.9: 520.86

Physical processes accompanying the flyby of the Vitim bolide on September 24, 2002

Chernogor L.F.

Kharkiv V.N.Karazin National University, Ukraine

Abstract

The results of theoretical computations, observations and analysis of temporal variations of pressure in near-surface atmosphere and magnitude of geomagnetic pulsations in the range of 1–1000 c, which had occurred after the flyby of bolide having a mass of 50 tonnes, diameter of 3 m and initial kinetic energy of 1013 joules, are given. Temporal variations of the magnitude of geomagnetic pulsations were subjected to complex spectral analysis using three integral transformations. Four groups of perturbations corresponding to transport velocity of 7–8 km/c, 800–850, 300–400 and 260–280 m/c are revealed and identified. Mentioned velocities are close to the ones that have been observed in geomagnetic pulsations after rocket launches at Plesetsk and Baykonur cosmodromes.

Keywords:

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