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COSMOS 921
Launch Details
| Launched | 23 June 1977 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10095 |
| COSPAR ID | 1977-055A |
| Observing |
Current orbital elements
| Inclination | 75.832° |
| Eccentricity | 0.00367 |
| RA ascending node | 12.919 hr |
| Argument perigee | 304.380° |
| Mean anomaly | 55.392° |
| Orbital period | 96.267 min |
| Epoch of osculation | 09 May 2025, 11:55 |
Derived Quantities
| Min Altitude | 561.3 km |
| Mean Altitude | 586.9 km |
| Peak Altitude | 612.4 km |
Orbital History
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