Meteoric matter according to spacecraft measurements

Details Meteoric matter according to spacecraft measurements Meteoric matter according to spacecraft measurements

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976kosis..14..435n&link_type=abstract

Kosmicheskie Issledovaniia, vol. 14, May-June 1976, p. 435-444. In Russian.

Computer Science

Cosmic Dust, Earth Atmosphere, Micrometeorites, Satellite-Borne Instruments, Aerodynamic Drag, Cosmos Satellites, Interplanetary Space, Lunar Atmosphere, Mass Distribution, Upper Atmosphere

Scientific paper

Experimental results are reported for a study of micrometeorites that was conducted using spacecraft near earth and in the vicinity of the moon. It is found that the flux of meteoric particles at a distance of about 200 km from earth's surface is roughly 1-1/2 orders of magnitude greater than near the moon and in interplanetary space. This near-earth excess is interpreted as a circumterrestrial dust shell with a mass of approximately 140 kg and a thickness of up to 100 km. A logarithmic expression for the integral mass distribution of the meteoric bodies is derived from the set of experimental data. The material balance of the circumterrestrial dust shell is computed on the assumption that interplanetary particles are captured into earth orbit via aerodynamic drag in the upper layers of the atmosphere.

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