COSMOS 1137

COSMOS 1137 is an active satellite operated by Russia (CIS), launched on 1979-09-25 from PKMTR. With over 47 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Low Earth Orbit (LEO) at altitudes between 1,473 km and 1,514 km with an inclination of 74.0°. It travels at approximately 25,629 km/h (7.12 km/s), completing one full orbit every 116 minutes — that’s roughly 12.43 orbits per day. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is thousands of years. Orbital Radar tracks COSMOS 1137 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

COSMOS 1137 orbits at an average altitude of 1,494 km in the uppermost reaches of Low Earth Orbit. At this altitude, orbital decay is effectively zero without active deorbiting, and coverage footprints are significantly larger than lower LEO, though at the cost of higher latency. Within ±50 km of COSMOS 1137’s average altitude, there are currently 258 active payloads and 249 tracked debris or rocket body fragments. With an inclination of 74.0°, COSMOS 1137 passes over latitudes between 74.0°N and 74.0°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 1,285 active satellites in total, of which 249 share a similar altitude band with COSMOS 1137.