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COSMOS 1261
Launch Details
| Launched | 30 March 1981 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 12376 |
| COSPAR ID | 1981-031A |
| Observing |
Current orbital elements
| Inclination | 68.594° |
| Eccentricity | 0.60078 |
| RA ascending node | 7.055 hr |
| Argument perigee | 357.755° |
| Mean anomaly | 0.582° |
| Orbital period | 716.831 min |
| Epoch of osculation | 14 Sep 2025, 16:32 |
Derived Quantities
| Min Altitude | 4221.2 km |
| Mean Altitude | 20161.1 km |
| Peak Altitude | 36101.0 km |
Orbital History
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