Spacecraft information: COSMOS 1684
| 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 | 67.657° |
| Eccentricity | 0.51532 |
| RA ascending node | 6.006 hr |
| Argument perigee | 98.736° |
| Mean anomaly | 320.428° |
| Orbital period | 717.058 min |
| Epoch of osculation | 23 Jan 2026, 04:21 |
Derived Quantities
| Min Altitude | 6491.4 km |
| Mean Altitude | 20166.7 km |
| Peak Altitude | 33842.0 km |
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.