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COSMOS 2546 (EKS 4) — Live Satellite Tracking (NORAD 45608)
Track COSMOS 2546 (EKS 4) (NORAD catalog number 45608) 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 2020, launched on the 31st orbital launch of that year (COSPAR designation 2020-031A). As of this element set it had completed roughly 4,597 revolutions of Earth.
Its speed swings from 1.59 km/s at apogee to 9.44 km/s at perigee. COSMOS 2546 (EKS 4) follows a highly elliptical orbit, completing a revolution every 12.0 hours. The orbit is strongly elliptical (eccentricity 0.7115): each revolution swings from 1,290 km at perigee out to 39,086 km at apogee. Inclined 63.2° to the equator, it overflies every latitude up to about 63° north and south. Its orbital plane crosses the equator northbound at right ascension 56.9°. Earth's equatorial bulge drifts that plane westward about 0.13° per day.
Orbital elements
| Orbit regime | highly elliptical orbit (HEO) |
|---|---|
| Perigee × apogee altitude | ~1,290 km × 39,086 km |
| Inclination | 63.16° |
| Orbital period | 717.9 min (2.01 rev/day) |
| Eccentricity | 0.71153 |
| Element set epoch | 2026-08-31 |
| COSPAR designation | 2020-031A |
| NORAD catalog number | 45608 |
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 Other Active Satellites group
COSMOS 2546 (EKS 4) is one of 4,471 active satellites in WatchSat's general catalog — the broad population of Earth-observation, communications, science, amateur-radio and technology spacecraft outside the giant broadband constellations. Browse all other active satellites live in 3D.
Can you see COSMOS 2546 (EKS 4) from the ground?
Not with the naked eye. At its altitude COSMOS 2546 (EKS 4) 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 2546 (EKS 4) in the Other Active Satellites group — usually craft from the same or adjacent launches:
- XINGYUN-2 02 (NORAD 45603)
- XINGYUN-2 01 (NORAD 45602)
- GAOFEN-9 02 (NORAD 45625)
- HAIYANG-1D (NORAD 45721)
- ANDESITE (NORAD 45726)
- M2 PATHFINDER (NORAD 45727)
Browse the Other Active Satellites directory or the full satellite directory · What is a TLE? · WatchSat live globe