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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 | 82.920° |
| Eccentricity | 0.00293 |
| RA ascending node | 18.766 hr |
| Argument perigee | 11.434° |
| Mean anomaly | 59.258° |
| Orbital period | 104.739 min |
| Epoch of osculation | 03 May 2025, 13:33 |