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 | 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 eventually 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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