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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 | 0.00356 |
| RA ascending node | 4.939 hr |
| Argument perigee | 134.188° |
| Mean anomaly | 226.225° |
| Orbital period | 96.260 min |
| Epoch of osculation | 15 Jul 2025, 02:39 |
Derived Quantities
| Min Altitude | 561.8 km |
| Mean Altitude | 586.6 km |
| Peak Altitude | 611.3 km |
Orbital History
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