GLOBAL STATISTICS OF BOLIDES IN THE TERRESTRIAL ATMOSPHERE

DOI: https://doi.org/10.15407/rpra22.02.138

L. F. Chernogor, M. B. Shevelyov

Abstract


PACS numbers: 93., 96.30.Ys 

Purpose: Evaluation and analysis of distribution of the number of meteoroid (mini asteroid) falls as a function of glow energy, velocity, the region of maximum glow altitude, and geographic coordinates.

Design/methodology/approach: The satellite database on the glow of 693 mini asteroids, which were decelerated in the terrestrial atmosphere, has been used for evaluating basic meteoroid statistics.

Findings: A rapid decrease in the number of asteroids with increasing of their glow energy is confirmed. The average speed of the celestial bodies is equal to about 17.9 km/s. The altitude of maximum glow most often equals to 30–40 km. The distribution law for a number of meteoroids entering the terrestrial atmosphere in longitude and latitude (after excluding the component in latitudinal dependence due to the geometry) is approximately uniform.

Conclusions: Using a large enough database of measurements, the meteoroid (mini asteroid) statistics has been evaluated.

Key words: bolides, meter-size asteroid, mini asteroid velocity, altitude of maximum glow, statistics distributions

Manuscript submitted 06.04.2017

Radio phys. radio astron. 2017, 22(2): 138-145

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Keywords


bolides; meter-size asteroid; mini asteroid velocity; altitude of maximum glow; statistics distributions

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