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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 | 82.911° |
Eccentricity | 0.00371 |
RA ascending node | 3.880 hr |
Argument perigee | 163.437° |
Mean anomaly | 331.291° |
Orbital period | 104.810 min |
Epoch of osculation | 15 Jul 2025, 04:21 |
Derived Quantities
Min Altitude | 965.4 km |
Mean Altitude | 992.7 km |
Peak Altitude | 1020.0 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.
Launched alongside
SL-8 R/B