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OPS 7899
Launch Details
| Launched | 21 April 1971 |
| Flight ended | 12 May 1971 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 5171 |
| COSPAR ID | 1971-033A |
| Observing |