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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 4,709 revolutions of Earth.

Its speed swings from 1.58 km/s at apogee to 9.48 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 0.7139): each revolution swings from 1,226 km at perigee out to 39,137 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 49.5°. Earth's equatorial bulge drifts that plane westward about 0.13° per day.

Orbital elements

Orbit regime	highly elliptical orbit (HEO)
Perigee × apogee altitude	~1,226 km × 39,137 km
Inclination	63.17°
Orbital period	717.7 min (2.01 rev/day)
Eccentricity	0.71388
Element set epoch	2026-10-26
COSPAR designation	2020-031A
NORAD catalog number	45608

This page's orbital elements come from the CelesTrak catalog of 2026-10-31. 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 4,848 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 the “When can I see it?” panel in the live view.

Related satellites

Nearest catalog neighbors of COSMOS 2546 (EKS 4) in the Other Active Satellites group — usually craft from the same or adjacent launches:

Browse the Other Active Satellites directory or the full satellite directory.

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