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Spacecraft information: COSMOS 1861
Launch Details
| Launched | 22 June 1987 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18129 |
| COSPAR ID | 1987-054A |
| Observing |
Current orbital elements
| Inclination | 82.927° |
| Eccentricity | 0.00113 |
| RA ascending node | 19.547 hr |
| Argument perigee | 195.737° |
| Mean anomaly | 193.026° |
| Orbital period | 104.859 min |
| Epoch of osculation | 27 Jul 2026, 05:02 |
Derived Quantities
| Min Altitude | 986.7 km |
| Mean Altitude | 995.0 km |
| Peak Altitude | 1003.3 km |
Orbital History
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