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COSMOS 1666
Launch Details
| Launched | 7 July 1985 |
| Flight ended | 14 June 2025 |
| Status | Decayed |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15889 |
| COSPAR ID | 1985-058A |
| Observing |
Current orbital elements
| Inclination | 82.438° |
| Eccentricity | 0.00171 |
| RA ascending node | 19.805 hr |
| Argument perigee | 286.498° |
| Mean anomaly | 132.963° |
| Orbital period | 87.248 min |
| Epoch of osculation | 15 Jun 2025, 09:11 |
Derived Quantities
| Min Altitude | 134.1 km |
| Mean Altitude | 145.2 km |
| Peak Altitude | 156.3 km |
Orbital History
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