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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 | 67.792° |
| Eccentricity | 0.56334 |
| RA ascending node | 8.604 hr |
| Argument perigee | 69.751° |
| Mean anomaly | 340.367° |
| Orbital period | 718.246 min |
| Epoch of osculation | 25 Jun 2025, 23:36 |
Derived Quantities
| Min Altitude | 5229.8 km |
| Mean Altitude | 20196.0 km |
| Peak Altitude | 35162.2 km |
Orbital History
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