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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 | 10439 | 
| COSPAR ID | 1976-067Q | 
| Observing | 
Current orbital elements
| Inclination | 65.785° | 
| Eccentricity | 0.06700 | 
| RA ascending node | 7.760 hr | 
| Argument perigee | 307.813° | 
| Mean anomaly | 246.055° | 
| Orbital period | 117.559 min | 
| Epoch of osculation | 29 Oct 2025, 05:49 | 
Derived Quantities