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    SL-8 DEB
            Launch Details
            
                
        
                    | Launched | 11 February 1991 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Plesetsk Missile and Space Complex, Russia | 
| Owner | Commonwealth of Independent States (former USSR) | 
| NORAD ID | 21958 | 
| COSPAR ID | 1991-009CG | 
| Observing | 
Current orbital elements
| Inclination | 73.961° | 
| Eccentricity | 0.01328 | 
| RA ascending node | 9.526 hr | 
| Argument perigee | 114.549° | 
| Mean anomaly | 278.663° | 
| Orbital period | 118.343 min | 
| Epoch of osculation | 31 Oct 2025, 12:31 | 
Derived Quantities