Satellites/COSMOS 2557 [GLONASS-K]
COSMOS 2557 [GLONASS-K]
Satellite · RussiaActive
Who
Owner / operatorVVKOV/IACG
ManufacturerOAO M. Reshetnev Information Satellite Systems
CountryRussia
Catalogue owner codeCIS
Orbit
OrbitingEarth
Orbit classMEO
Perigee19,096 km
Apogee19,164 km
Inclination64.21°
Period675.7 min
Radar cross-section—
Latest Orbital Elements
Epoch (UTC)2026-11-09 02:38:41
Mean motion2.13101865 rev/day
Eccentricity0.0013302
Inclination64.2079°
Right ascension of node309.3668°
Argument of perigee272.8691°
Mean anomaly86.9888°
B* drag term0.0000e+0
Element set999
Revolutions at epoch3,380
Mean elements (OMM) for the SGP4 model, refreshed every 6 hours. They describe the orbit at the epoch shown and drift as time passes, fastest for low orbits.
Source: CelesTrak satellite catalogue and GP data (celestrak.org); owner and manufacturer from GCAT (J. McDowell, CC BY 4.0).