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COSMOS 2557 [GLONASS-K] — Live Satellite Tracking (NORAD 52984)
Track COSMOS 2557 [GLONASS-K] (NORAD catalog number 52984) live on the WatchSat interactive 3D globe above. Its position is propagated in real time from the latest CelesTrak two-line element set using the SGP4/SDP4 orbital model — the same math professional trackers run. It has been on orbit since 2022, launched on the 75th orbital launch of that year (COSPAR designation 2022-075A). As of this element set it had completed roughly 3,243 revolutions of Earth.
Moving at about 3.96 km/s, COSMOS 2557 [GLONASS-K] operates in medium Earth orbit at roughly 19,106–19,168 km altitude, taking about 11.3 hours per revolution (2.13 orbits a day). The orbit is essentially circular (eccentricity 0.0012). Inclined 64.2° to the equator, it overflies every latitude up to about 64° north and south. Its orbital plane crosses the equator northbound at right ascension 311.6°.
Orbital elements
| Orbit regime | medium Earth orbit (MEO) |
|---|---|
| Perigee × apogee altitude | ~19,106 km × 19,168 km |
| Inclination | 64.25° |
| Orbital period | 675.7 min (2.13 rev/day) |
| Eccentricity | 0.00123 |
| Element set epoch | 2026-09-05 |
| COSPAR designation | 2022-075A |
| NORAD catalog number | 52984 |
This page's orbital elements come from the CelesTrak catalog of 2026-09-08. The live 3D view above fetches its own current CelesTrak data when the page opens, through an edge cache that refreshes roughly every 30 minutes.
About the Navigation group
COSMOS 2557 [GLONASS-K] is part of Russia's GLONASS fleet — one of 173 global-navigation satellites in the WatchSat catalog across GPS, GLONASS, Galileo and BeiDou. GNSS spacecraft broadcast precise time signals from orbits around 20,000 km up; a phone fixes its position by comparing several of them at once. See the whole navigation group live in 3D.
Can you see COSMOS 2557 [GLONASS-K] from the ground?
Not with the naked eye. At its altitude COSMOS 2557 [GLONASS-K] is far beyond unaided visibility — following satellites this high takes a telescope and good timing. You can still track it precisely in the live 3D view above, or check pass predictions for your location.
Related satellites
Nearest catalog neighbors of COSMOS 2557 [GLONASS-K] in the Navigation group — usually craft from the same or adjacent launches:
- COSMOS 2559 [GLONASS-K] (NORAD 54031)
- COSMOS 2564 [GLONASS-M] (NORAD 54377)
- NAVSTAR 82 (USA 343) (NORAD 55268)
- GSAT0224 (GALILEO 28) (NORAD 49810)
- GSAT0223 (GALILEO 27) (NORAD 49809)
- BEIDOU-3 G4 (NORAD 56564)
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