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VIKING 1 ORBITER
Launch Details
| Launched | 19 August 1975 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 8108 |
| COSPAR ID | 1975-075A |
| Observing |
Timeline
| 1975 Aug 20 | – | Launch from Cape Canaveral |
| 1976 Jun 19 | – | Insertion into orbit around Mars |
| 1976 Jul 20 | – | Separation of lander from orbiter |
| 1976 Jul 20 | – | Landing on Mars |
| 1977 Feb | – | Close approach of orbiter to Phobos |
| 1980 Aug 7 | – | Orbiter altitude increased to prevent decay into Mars' atmosphere |
| 1980 Aug 17 | – | Orbiter decommissioned |
| 1982 Nov 13 | – | Final contact with lander |