Physics
Scientific paper
Feb 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ge%26ae..51..116c&link_type=abstract
Geomagnetism and Aeronomy, Volume 51, Issue 1, pp.116-130
Physics
Scientific paper
The results of observation and analysis of oscillations of the geomagnetic field within the 1-1000 s range that followed the flight of a bolide with a mass of 50 t, diameter of about 3 m, and initial kinetic energy of 1013 J at a distance of 4850 km are given. Spectral analysis of the time variations of the geomagnetic field oscillation level was performed using three integral transformations. Four groups of disturbances to which the transport velocities of 7-8 km/s, 800-850, 300-400, and 260-280 m/s corresponded were detected and identified. The enumerated velocities are close to the velocities observed in geomagnetic pulsations after rocket launchings from the Plesetsk and Baikonur rocket sites. The magnetometer data were confirmed by the results of analysis of the recordings at a microbarograph located at a distance from the flight trajectory of the bolide of 4350 km.
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