Analysis of the variation of physical characteristics of the meteoroid Sterlitamak along its path

Details Analysis of the variation of physical characteristics of the meteoroid Sterlitamak along its path Analysis of the variation of physical characteristics of the meteoroid Sterlitamak along its path

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993avest..27...87k&link_type=abstract

Astronomicheskij Vestnik (ISSN 0320-930X), vol. 27, no. 6, p. 87-94

Astronomy and Astrophysics

Astronomy

1

Descent Trajectories, Height, Meteoroids, Pressure Effects, Temperature Dependence, Velocity Distribution, Deceleration, Energy Dissipation, Radiant Heating, Shock Waves, Surface Temperature

Scientific paper

On the basis of the results obtained, the analysis and calculations of dependences of the velocity and the deceleration of the meteoroid Sterlitamak on the height have been conducted and the change of the aerodynamical pressure along its path has been determined. It is shown that in the vicinity of the height of the maximum deceleration of the path length of 1.4 km, the energy loss due to the deceleration exceeds the meteoroid evaporation energy. That is an important argument in favor of the outburst at this height. It is shown that the Sterlitamak meteoroid could have an intensive rotation. The classical method of determining the height of the fireball appearance has been proved invalid. Based on the obtained dependence of surface temperature on the height it has been shown that the beginning of the intensive destruction of large meteorite forming bodies is determined by radiation heating from the shock wave. The possibility of the surface melting for the case of Sterlitamak meteoroid along the whole course has been grounded.

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