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Spacecraft information: COSMOS 2123 & RS-12/13
Launch Details
| Launched | 4 February 1991 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 21089 |
| COSPAR ID | 1991-007A |
| Observing |
Current orbital elements
| Inclination | 82.922° |
| Eccentricity | 0.00284 |
| RA ascending node | 3.125 hr |
| Argument perigee | 205.605° |
| Mean anomaly | 279.078° |
| Orbital period | 104.736 min |
| Epoch of osculation | 15 Mar 2026, 11:50 |
Derived Quantities
| Min Altitude | 968.3 km |
| Mean Altitude | 989.2 km |
| Peak Altitude | 1010.1 km |
Orbital History
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