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Spacecraft information: RADUGA 21
Launch Details
| Launched | 9 December 1987 |
| Flight ended | – |
| Status | Non-operational |
| Category |
Raduga
|
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18631 |
| COSPAR ID | 1987-100A |
| Observing |
Current orbital elements
| Inclination | 11.558° |
| Eccentricity | 0.00022 |
| RA ascending node | 21.767 hr |
| Argument perigee | 281.228° |
| Mean anomaly | 257.481° |
| Orbital period | 1435.210 min |
| Epoch of osculation | 23 Dec 2025, 12:54 |
Derived Quantities
| Min Altitude | 35766.9 km |
| Mean Altitude | 35776.4 km |
| Peak Altitude | 35785.8 km |
Orbital History
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