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BEIDOU-2 IGSO-4 — Live Satellite Tracking (NORAD 37763)
Track BEIDOU-2 IGSO-4 (NORAD catalog number 37763) 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 2011, launched on the 38th orbital launch of that year (COSPAR designation 2011-038A). As of this element set it had completed roughly 5,544 revolutions of Earth.
Moving at about 3.12 km/s, BEIDOU-2 IGSO-4 flies a geosynchronous orbit roughly 35,786 km up: its 23.9-hour period matches Earth's rotation, but at 54.6° inclination it is not geostationary — seen from the ground it traces a daily figure-eight around a fixed longitude, swinging about 55° north and south of the equator. The orbit is essentially circular (eccentricity 0.0161). Inclined 54.6° to the equator, it overflies every latitude up to about 55° north and south. Its orbital plane crosses the equator northbound at right ascension 165.0°.
Orbital elements
| Orbit regime | inclined geosynchronous orbit (IGSO) |
|---|---|
| Perigee × apogee altitude | ~35,117 km × 36,472 km |
| Inclination | 54.60° |
| Orbital period | 1436.1 min (1.00 rev/day) |
| Eccentricity | 0.01607 |
| Element set epoch | 2026-09-04 |
| COSPAR designation | 2011-038A |
| NORAD catalog number | 37763 |
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
BEIDOU-2 IGSO-4 is part of China's BeiDou 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 BEIDOU-2 IGSO-4 from the ground?
Not with the naked eye. At its altitude BEIDOU-2 IGSO-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 BEIDOU-2 IGSO-4 in the Navigation group — usually craft from the same or adjacent launches:
- NAVSTAR 66 (USA 232) (NORAD 37753)
- GSAT0101 (GALILEO-PFM) (NORAD 37846)
- GSAT0102 (GALILEO-FM2) (NORAD 37847)
- COSMOS 2476 [GLONASS-M] (NORAD 37867)
- COSMOS 2477 [GLONASS-M] (NORAD 37868)
- COSMOS 2475 [GLONASS-M] (NORAD 37869)
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