Spacecraft information: OPS 1166
| Launched | 27 February 1981 |
| Flight ended | 19 June 1981 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 12315 |
| COSPAR ID | 1981-019A |
| Observing |
Spacecraft information: OPS 1166
| Launched | 27 February 1981 |
| Flight ended | 19 June 1981 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 12315 |
| COSPAR ID | 1981-019A |
| Observing |