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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 | 11.701° |
| Eccentricity | 0.00021 |
| RA ascending node | 21.813 hr |
| Argument perigee | 229.833° |
| Mean anomaly | 75.468° |
| Orbital period | 1435.828 min |
| Epoch of osculation | 15 Sep 2025, 04:52 |
Derived Quantities
| Min Altitude | 35779.7 km |
| Mean Altitude | 35788.5 km |
| Peak Altitude | 35797.2 km |
Orbital History
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