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Spacecraft information: COSMOS 1261 DEB
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 | 35507 |
| COSPAR ID | 1981-031N |
| Observing |
Current orbital elements
| Inclination | 62.127° |
| Eccentricity | 0.73977 |
| RA ascending node | 20.848 hr |
| Argument perigee | 42.196° |
| Mean anomaly | 355.405° |
| Orbital period | 713.245 min |
| Epoch of osculation | 15 Mar 2026, 14:06 |
Derived Quantities
| Min Altitude | 510.3 km |
| Mean Altitude | 20072.5 km |
| Peak Altitude | 39634.8 km |
Orbital History
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