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Spacecraft information: 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 | 82.570° |
| Eccentricity | 0.00006 |
| RA ascending node | 23.846 hr |
| Argument perigee | 210.741° |
| Mean anomaly | 324.354° |
| Orbital period | 113.954 min |
| Epoch of osculation | 15 Mar 2026, 14:00 |
Derived Quantities
| Min Altitude | 1414.5 km |
| Mean Altitude | 1415.0 km |
| Peak Altitude | 1415.5 km |
Orbital History
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