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COSMOS 1661
Launch Details
| Launched | 17 June 1985 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15827 |
| COSPAR ID | 1985-049A |
| Observing |
Current orbital elements
| Inclination | 67.771° |
| Eccentricity | 0.55978 |
| RA ascending node | 8.811 hr |
| Argument perigee | 71.063° |
| Mean anomaly | 339.760° |
| Orbital period | 718.580 min |
| Epoch of osculation | 30 Apr 2025, 02:36 |
Derived Quantities
| Min Altitude | 5327.9 km |
| Mean Altitude | 20204.2 km |
| Peak Altitude | 35080.6 km |
Orbital History
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