Satellite observations of ionospheric disturbances which followed the Chelyabinsk meteorite passage

1Chernogor, LF, 1Milovanov, Yu.B, 2Fedorenko, VN, 3Tsymbal, AM
1V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
2V.N. Karazin Kharkiv National University
3V. N. Karazin Kharkiv National University, Kharkiv, Ukraine
Kosm. nauka tehnol. 2013, 19 ;(6):38–46
Section: Space and Atmospheric Physics
Publication Language: Russian

The GPS TEC data obtained during the Chelyabinsk meteorite passage and on reference days were examined. The GPS receivers were located at 240–360 km away from the meteorite explosion. Quasi-periodic (wave-like) oscillations in TEC with time delays of 12–20 min, periods of 8–10 min, durations of 30–40 min, and amplitudes of 0.6–3.5 % were detected. The middle speed of propagation of these disturbances was approximately 500 m/s. Such parameters belong to acoustic-gravity waves in the upper atmosphere

Keywords: Chelyabinsk meteorite, ionosphere, quasi-periodic oscillations, shock wave, total electron content

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