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COSMOS 1904
Launch Details
| Launched | 22 December 1987 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18709 |
| COSPAR ID | 1987-106A |
| Observing |
Current orbital elements
| Inclination | 82.914° |
| Eccentricity | 0.00269 |
| RA ascending node | 13.965 hr |
| Argument perigee | 200.592° |
| Mean anomaly | 278.689° |
| Orbital period | 104.769 min |
| Epoch of osculation | 12 Dec 2025, 03:45 |
Derived Quantities
| Min Altitude | 971.0 km |
| Mean Altitude | 990.8 km |
| Peak Altitude | 1010.5 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
SL-8 R/B