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COSMOS 921 DEB
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 | 39690 |
| COSPAR ID | 1977-055C |
| Observing |
Current orbital elements
| Inclination | 75.818° |
| Eccentricity | 0.00173 |
| RA ascending node | 9.923 hr |
| Argument perigee | 138.767° |
| Mean anomaly | 221.486° |
| Orbital period | 93.219 min |
| Epoch of osculation | 14 Sep 2025, 22:58 |
Derived Quantities
| Min Altitude | 427.5 km |
| Mean Altitude | 439.3 km |
| Peak Altitude | 451.0 km |
Orbital History
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