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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 | 21155 | 
| COSPAR ID | 1991-009S | 
| Observing | 
Current orbital elements
| Inclination | 73.926° | 
| Eccentricity | 0.01440 | 
| RA ascending node | 1.996 hr | 
| Argument perigee | 12.351° | 
| Mean anomaly | 167.033° | 
| Orbital period | 117.003 min | 
| Epoch of osculation | 02 Nov 2025, 00:09 | 
Derived Quantities