TITAN 3E CENTAUR R/B
| Launched | 8 September 1975 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 8272 |
| COSPAR ID | 1975-083B |
| Observing |
Timeline
| 1975 Sep 9 | – | Launch from Cape Canaveral |
| 1976 Aug 7 | – | Insertion into orbit around Mars |
| 1976 Sep 3 | – | Separation of lander from orbiter |
| 1976 Sep 3 | – | Landing on Mars |
| 1977 Oct | – | Close approach of orbiter to Deimos |
| 1978 Jul 25 | – | Orbiter decommissioned |
| 1980 Apr 11 | – | Final contact with lander |
| 1980 Jul 25 | – | Orbiter altitude increased to prevent decay into Mars' atmosphere |