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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 | 11.799° |
| Eccentricity | 0.00016 |
| RA ascending node | 21.847 hr |
| Argument perigee | 203.309° |
| Mean anomaly | 150.659° |
| Orbital period | 1436.274 min |
| Epoch of osculation | 07 Jul 2025, 12:47 |
Derived Quantities
| Min Altitude | 35790.5 km |
| Mean Altitude | 35797.2 km |
| Peak Altitude | 35804.0 km |
Orbital History
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