Spacecraft information: COSMOS 1266 FUEL CORE
| 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 | 64.769° |
| Eccentricity | 0.00289 |
| RA ascending node | 19.601 hr |
| Argument perigee | 235.166° |
| Mean anomaly | 124.668° |
| Orbital period | 103.360 min |
| Epoch of osculation | 25 Aug 2026, 12:49 |
Derived Quantities
| Min Altitude | 903.5 km |
| Mean Altitude | 924.6 km |
| Peak Altitude | 945.7 km |
Orbital History
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