COSMOS 1833

COSMOS 1833 is an active satellite operated by Russia (CIS), launched on 1987-03-18 from Baikonur, Kazakhstan. With over 39 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Low Earth Orbit (LEO) at altitudes between 832 km and 865 km with an inclination of 70.9°. It travels at approximately 26,750 km/h (7.43 km/s), completing one full orbit every 102 minutes — that’s roughly 14.13 orbits per day. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~100–500 years. Orbital Radar tracks COSMOS 1833 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

COSMOS 1833 orbits at an average altitude of 849 km in the upper LEO band, where atmospheric drag is negligible and objects can persist for centuries to millennia. This altitude is used by broadband constellations like OneWeb and by scientific missions requiring stable orbits far from the densest debris bands. Within ±50 km of COSMOS 1833’s average altitude, there are currently 249 active payloads and 2,064 tracked debris or rocket body fragments — notable neighbours include NOAA 20, ONEWEB-0179, ONEWEB-0455. With an inclination of 70.9°, COSMOS 1833 passes over latitudes between 70.9°N and 70.9°S, covering most populated land masses in both hemispheres. This mid-inclination band balances global coverage with efficient launch energy requirements. Russia (CIS) operates approximately 1,286 active satellites in total, of which 47 share a similar altitude band with COSMOS 1833.