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    COSMOS 917 DEB
            Launch Details
            
                
        
                    | Launched | 15 June 1977 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Plesetsk Missile and Space Complex, Russia | 
| Owner | Commonwealth of Independent States (former USSR) | 
| NORAD ID | 27887 | 
| COSPAR ID | 1977-047K | 
| Observing | 
Current orbital elements
| Inclination | 63.708° | 
| Eccentricity | 0.65297 | 
| RA ascending node | 17.305 hr | 
| Argument perigee | 10.376° | 
| Mean anomaly | 2.535° | 
| Orbital period | 727.619 min | 
| Epoch of osculation | 07 Oct 2025, 22:48 | 
Derived Quantities
| Min Altitude | 2928.6 km | 
| Mean Altitude | 20426.6 km | 
| Peak Altitude | 37924.6 km | 
Orbital History
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