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OPS 3531
Launch Details
| Launched | 21 September 1969 |
| Flight ended | 11 October 1969 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 4102 |
| COSPAR ID | 1969-079A |
| Observing |
Launched alongside
OPS 4710