Back Viking 2 Afrikaans فايكينغ 2 Arabic وایکینگ ۲ AZB Viking 2 BS Viking 2 Catalan ڤایکینگ ٢ CKB Viking 2 Czech Viking 2 Esperanto Viking 2 Spanish وایکینگ ۲ Persian
 Viking Orbiter | |
| Mission type | Orbiter and 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 with Centaur upper stage |
| Launch site | LC-41, Cape Canaveral |
| End of mission | |
| Last contact | April 12, 1980[4] |
| Orbital parameters | |
| Reference system | Areocentric |
| Mars orbiter | |
| Spacecraft component | Viking 2 Orbiter |
| Orbital insertion | August 7, 1976[1][3] |
| 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)[1] |
| Landing site | 47°38′N 225°43′W / 47.64°N 225.71°W[1] |
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]
- ^ a b c d e f g h Williams, David R. (December 18, 2006). "Viking Mission to Mars". NASA. Retrieved February 2, 2014.
- ^ a b "Viking 2 Lander". National Space Science Data Center.
- ^ a b Nelson, Jon. "Viking 2". NASA. Retrieved February 2, 2014.
- ^ NASA.gov
- ^ "Viking 2 Orbiter". National Space Science Data Center. Retrieved August 16, 2019.
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