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Spacecraft information: 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 | 74.028° |
| Eccentricity | 0.00056 |
| RA ascending node | 9.865 hr |
| Argument perigee | 124.551° |
| Mean anomaly | 304.432° |
| Orbital period | 115.077 min |
| Epoch of osculation | 20 Dec 2025, 13:00 |
Derived Quantities
| Min Altitude | 1461.7 km |
| Mean Altitude | 1466.0 km |
| Peak Altitude | 1470.4 km |
Launched alongside
COSMOS 871 COSMOS 872 COSMOS 873 COSMOS 874 COSMOS 875 COSMOS 876 COSMOS 878 SL-8 R/BOrbital History
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