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Spacecraft information: 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 | 67.842° |
| Eccentricity | 0.57961 |
| RA ascending node | 7.613 hr |
| Argument perigee | 63.831° |
| Mean anomaly | 343.864° |
| Orbital period | 717.024 min |
| Epoch of osculation | 13 Mar 2026, 01:58 |
Derived Quantities
| Min Altitude | 4784.8 km |
| Mean Altitude | 20165.8 km |
| Peak Altitude | 35546.9 km |
Orbital History
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