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COSMOS 820
Launch Details
| Launched | 20 May 1976 |
| Flight ended | 1 June 1976 |
| Status | Decayed |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 8856 |
| COSPAR ID | 1976-046A |
| Observing |