![]() Viking Orbiter | |
Mission type | Mars Orbiter/Lander |
---|---|
Operator | NASA |
COSPAR ID | |
SATCAT no. |
|
Website | Viking Project Information |
Mission duration | Orbiter: 1050 days (1022 sol)[1] Lander: 1316 days (1281 sol)[1] Launch to last contact: 1,676 days |
Spacecraft properties | |
Manufacturer | Orbiter: JPL Lander: Martin Marietta |
Launch mass | 3,530 kg[a] |
Dry mass | Orbiter: 883 kg (1,947 lb) Lander: 572 kg (1,261 lb)[2] |
Power | Orbiter: 620 W Lander: 70 W |
Start of mission | |
Launch date | 18:39, September 9, 1975 (UTC)[1][3] |
Rocket | Titan IIIE |
Launch site | Cape Canaveral LC-41 |
Contractor | Martin Marietta |
End of mission | |
Last contact | April 12, 1980[4] |
Orbital parameters | |
Reference system | Areocentric |
Eccentricity | 0.81630 |
Periareion altitude | 300 km (190 mi) |
Apoareion altitude | 33,176 km (20,615 mi) |
Inclination | 80.5° |
Period | 24.08 hours |
Epoch | July 24, 1980 |
Mars orbiter | |
Spacecraft component | Viking 2 Orbiter |
Orbital insertion | August 7, 1976[1][3] |
Mars lander | |
Spacecraft component | Viking 2 Lander |
Landing date | September 3, 1976 22:37:50 UTC (MSD 36500 00:13 AMT)[1] |
Landing site | 47°38′N 225°43′W / 47.64°N 225.71°W[1] |
![]() Large Strategic Science Missions Planetary Science Division |
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.[1] Viking 2 was operational on Mars for 1281 sols (1,316 days; 3 years, 221 days). The Viking 2 lander operated on the surface for 1,316 days, or 1281 sols, and was turned off on April 12, 1980, when its batteries failed. The orbiter worked until July 25, 1978,[1] returning almost 16,000 images in 706 orbits around Mars.[5]
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