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    COSMOS 1266 FUEL CORE
            Launch Details
            
                
        
                    | Launched | 20 April 1981 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) | 
| Owner | Commonwealth of Independent States (former USSR) | 
| NORAD ID | 12435 | 
| COSPAR ID | 1981-037D | 
| Observing | 
Current orbital elements
| Inclination | 64.771° | 
| Eccentricity | 0.00365 | 
| RA ascending node | 23.962 hr | 
| Argument perigee | 274.246° | 
| Mean anomaly | 85.444° | 
| Orbital period | 103.360 min | 
| Epoch of osculation | 02 Nov 2025, 10:24 | 
Derived Quantities
| Min Altitude | 898.0 km | 
| Mean Altitude | 924.6 km | 
| Peak Altitude | 951.2 km | 
Orbital History
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