Radio occultation of the Venusian atmosphere and bistatic radiolocation of the surface of Venus using the Venera-9 and Venera-10 satellites

Details Radio occultation of the Venusian atmosphere and bistatic radiolocation of the surface of Venus using the Venera-9 and Venera-10 satellites Radio occultation of the Venusian atmosphere and bistatic radiolocation of the surface of Venus using the Venera-9 and Venera-10 satellites

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979rasc...14..163k&link_type=abstract

Radio Science, vol. 14, Jan.-Feb. 1979, p. 163-173.

Mathematics

Logic

2

Radio Occultation, Radio Probing, Satellite Observation, Venera Satellites, Venus Atmosphere, Venus Surface, Bistatic Reflectivity, Electromagnetic Fields, Frequency Response, Meteorological Parameters, Topography, Venera 9 Satellite, Radio Occultation, Venus, Atmosphere, Venera 9, Surface, Density, Venera 10, Pressure, Refraction Index, Temperatures, Absorption Spectra, Ionosphere, Electrons, Bistatic Radar Experiment

Scientific paper

Experimental results for the radio occultation of the Venusian atmosphere using the Venera-9 and Venera-10 satellites are discussed. The time dependences of the field strength and frequency during immersion of the vehicles behind the planet and during their emersion from behind it are given. The dependences of the refraction index, density, pressure, temperature, and electron number density on the altitude above the planet's surface have been obtained. The results of bistatic radiolocation of the Venus surface with the aid of the Venera-10 satellite are also presented. An analysis is made of the energy spectrum and variations of the Doppler frequency of a radio signal reflected from the planet's surface. The distribution of the relative heights and of rms slopes of irregularities for two areas of the Venusian surface has been found.

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