Viking 2
Space mission
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The Viking 2 mission was part of the American Viking program to Mars, and consisted of an orbiter and a lander essentially identical to that of the Viking 1 mission. Viking 2 was operational on Mars for 1281 sols. Wikipedia
Dates: Sep 9, 1975 – Apr 11, 1980
Dry mass: Orbiter: 883 kg (1,947 lb); Lander: 572 kg (1,261 lb)
Last contact: April 12, 1980
Launch mass: 3,530 kg
Power: Orbiter: 620 W; Lander: 70 W
Reference system: Areocentric
Rocket: Titan IIIE with Centaur upper stage