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COSMOS 1821
Launch Details
| Launched | 17 February 1987 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 17525 |
| COSPAR ID | 1987-017A |
| Observing |
Current orbital elements
| Inclination | 82.909° |
| Eccentricity | 0.00367 |
| RA ascending node | 7.209 hr |
| Argument perigee | 354.892° |
| Mean anomaly | 57.478° |
| Orbital period | 104.810 min |
| Epoch of osculation | 08 May 2025, 22:43 |
Derived Quantities
| Min Altitude | 965.7 km |
| Mean Altitude | 992.7 km |
| Peak Altitude | 1019.7 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.
Launched alongside
SL-8 R/B