Viking 2
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 (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, returning almost 16,000 images in 706 orbits around Mars.
Viking Orbiter | |
| Mission type | Orbiter and Lander |
|---|---|
| Operator | NASA |
| COSPAR ID | |
| SATCAT no. |
|
| Website | Viking Project Information |
| Mission duration | Orbiter: 1050 days (1022 sol) Lander: 1316 days (1281 sol) Launch to last contact: 1,676 days |
| Spacecraft properties | |
| Manufacturer | Orbiter: JPL Lander: Martin Marietta |
| Launch mass | 3,530 kg |
| Dry mass | Orbiter: 883 kg (1,947 lb) Lander: 572 kg (1,261 lb) |
| Power | Orbiter: 620 W Lander: 70 W |
| Start of mission | |
| Launch date | 18:39, September 9, 1975 (UTC) |
| Rocket | Titan IIIE with Centaur upper stage |
| Launch site | LC-41, Cape Canaveral |
| End of mission | |
| Last contact | April 12, 1980 |
| Orbital parameters | |
| Reference system | Areocentric |
| Mars orbiter | |
| Spacecraft component | Viking 2 Orbiter |
| Orbital insertion | August 7, 1976 |
| Orbital parameters | |
| Periareion altitude | 302 km (188 mi) |
| Apoareion altitude | 33,176 km (20,615 mi) |
| Inclination | 80.5° |
| Mars lander | |
| Spacecraft component | Viking 2 Lander |
| Landing date | September 3, 1976 22:37:50 UTC (MSD 36500 00:13 AMT) |
| Landing site | 47.64°N 225.71°W |
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