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COSMOS 1684
Launch Details
| Launched | 23 September 1985 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 16064 |
| COSPAR ID | 1985-084A |
| Observing |
Current orbital elements
| Inclination | 67.479° |
| Eccentricity | 0.50928 |
| RA ascending node | 6.686 hr |
| Argument perigee | 103.342° |
| Mean anomaly | 316.076° |
| Orbital period | 717.963 min |
| Epoch of osculation | 01 Jul 2025, 09:35 |
Derived Quantities
| Min Altitude | 6662.7 km |
| Mean Altitude | 20189.0 km |
| Peak Altitude | 33715.4 km |
Orbital History
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