Determination of the time and range of radio communications cutoff in the descent of the Mars-6 probe descent module into the Martian atmosphere

Details Determination of the time and range of radio communications cutoff in the descent of the Mars-6 probe descent module into the Martian atmosphere Determination of the time and range of radio communications cutoff in the descent of the Mars-6 probe descent module into the Martian atmosphere

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976kosis..14..610v&link_type=abstract

Kosmicheskie Issledovaniia, vol. 14, July-Aug. 1976, p. 610-615. In Russian.

Physics

Blackout (Propagation), Deep Space Network, Hypersonic Reentry, Mars Atmosphere, Mars 6 Spacecraft, Radio Communication, Reentry Communication, Descent Trajectories, Frequency Response, Plasma Sheaths

Scientific paper

Results of calculations and measurements of the actual time and range of the radio transmission blackout accompanying the descent of the lander module from the Mars-6 automatic deep space probe into the dense lower-lying layers of the Martian atmosphere are cited, in a report on how the time and range of the radio blackout were ascertained (as a function of operating frequency) as the vehicle made its way through the denser layers and generated shocks and thermal ionization (with ensuing plasma envelope and plasma wake). Comparison of theoretical predictions and measurements of the actual time and range of the blackout are found in close agreement. Gas-dynamic and radio physics parameters are investigated. Three models of Martian atmosphere chemical composition are compared.

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