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COSMOS 1877
Launch Details
| Launched | 6 September 1987 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18336 |
| COSPAR ID | 1987-074C |
| Observing |
Current orbital elements
| Inclination | 82.559° |
| Eccentricity | 0.00010 |
| RA ascending node | 6.645 hr |
| Argument perigee | 213.974° |
| Mean anomaly | 161.071° |
| Orbital period | 113.955 min |
| Epoch of osculation | 07 Oct 2025, 11:40 |
Derived Quantities
| Min Altitude | 1414.2 km |
| Mean Altitude | 1415.0 km |
| Peak Altitude | 1415.8 km |
Orbital History
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