Beschreibung : Mars 5 was launched into Earth orbit by a Proton SL-12/D-1-e booster, and propelled from its orbital platform into a Mars transfer trajectory.
After a mid-course correction burn on 3 August, the spacecraft reached Mars on 12 February 1974 at 15:45 UT and was inserted into an elliptical 1755 km x 32,555 km, 24 hr, 53 min. orbit with an inclination of 35.3 degrees. Mars 5 collected data for 22 orbits until a loss of pressurization in the transmitter housing ended the mission. About 60 images were returned over a nine day period showing swaths of the area south of Valles Marineris, from 5 N, 330 W to 20 S, 130 W. Measurements by other instruments were made near periapsis along 7 adjacent arcs in this same region.

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MARS 4 AND 5 · MARS ORBITER · PROTON K BLOK-D