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COSMOS 877
Launch Details
| Launched | 6 December 1976 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 9594 |
| COSPAR ID | 1976-118G |
| Observing |
Current orbital elements
| Inclination | 74.030° |
| Eccentricity | 0.00067 |
| RA ascending node | 15.478 hr |
| Argument perigee | 222.592° |
| Mean anomaly | 306.567° |
| Orbital period | 115.077 min |
| Epoch of osculation | 18 Oct 2025, 07:56 |
Derived Quantities
| Min Altitude | 1460.8 km |
| Mean Altitude | 1466.1 km |
| Peak Altitude | 1471.3 km |
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.
Launched alongside
COSMOS 871 COSMOS 872 COSMOS 873 COSMOS 874 COSMOS 875 COSMOS 876 COSMOS 878 SL-8 R/B