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    COSMOS 839 DEB
            Launch Details
            
                
        
                    | Launched | 7 July 1976 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Plesetsk Missile and Space Complex, Russia | 
| Owner | Commonwealth of Independent States (former USSR) | 
| NORAD ID | 20283 | 
| COSPAR ID | 1976-067BW | 
| Observing | 
Current orbital elements
| Inclination | 65.710° | 
| Eccentricity | 0.06435 | 
| RA ascending node | 15.986 hr | 
| Argument perigee | 290.011° | 
| Mean anomaly | 226.327° | 
| Orbital period | 115.390 min | 
| Epoch of osculation | 25 Aug 2025, 09:54 | 
Derived Quantities