OV1-20
| Launched | 6 August 1971 |
| Flight ended | 27 August 1971 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 5394 |
| COSPAR ID | 1971-067A |
| Observing |
OV1-20
| Launched | 6 August 1971 |
| Flight ended | 27 August 1971 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 5394 |
| COSPAR ID | 1971-067A |
| Observing |