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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 | 67.472° |
| Eccentricity | 0.50900 |
| RA ascending node | 6.719 hr |
| Argument perigee | 103.563° |
| Mean anomaly | 315.837° |
| Orbital period | 718.008 min |
| Epoch of osculation | 21 Jun 2025, 10:15 |
Derived Quantities
| Min Altitude | 6670.5 km |
| Mean Altitude | 20190.1 km |
| Peak Altitude | 33709.7 km |
Orbital History
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