The Vega 1 and 2 probes - Operation of the descent modules in the Venus atmosphere

Details The Vega 1 and 2 probes - Operation of the descent modules in the Venus atmosphere The Vega 1 and 2 probes - Operation of the descent modules in the Venus atmosphere

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kosis..25..649d&link_type=abstract

Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 25, Sept.-Oct. 1987, p. 649-654. In Russian.

Physics

Earth-Venus Trajectories, Space Probes, Vega Project, Venus Atmosphere, Atmospheric Pressure, Drag Chutes, Jettisoning, Spacecraft Landing, Temperature Profiles

Scientific paper

The Vega 1 and 2 descent modules entered the Venus atmosphere on June 11 and 15, 1985, respectively, at respective entry angles of 18.23 and 19.08 deg and entry velocities of 10.75 and 10.80 km/s. Consideration is given to the descent-module operations, including entry into the atmosphere, parachute deployment, jettisoning of the upper hemisphere, jettisoning of the lower hemisphere, jettisoning of the drag chute, and landing. Also presented is a plot of temperature and pressure variations in the Venus atmosphere during the descent of Vega-2.

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