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Spacecraft information: 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 | 75.814° |
| Eccentricity | 0.00171 |
| RA ascending node | 22.667 hr |
| Argument perigee | 251.401° |
| Mean anomaly | 108.537° |
| Orbital period | 92.630 min |
| Epoch of osculation | 10 Dec 2025, 10:12 |
Derived Quantities
| Min Altitude | 399.0 km |
| Mean Altitude | 410.6 km |
| Peak Altitude | 422.1 km |
Orbital History
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