OPS 4428
| Launched | 3 December 1975 |
| Flight ended | 31 March 1976 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 8467 |
| COSPAR ID | 1975-114A |
| Observing |
OPS 4428
| Launched | 3 December 1975 |
| Flight ended | 31 March 1976 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 8467 |
| COSPAR ID | 1975-114A |
| Observing |