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EUTELSAT 172B — Live Satellite Tracking (NORAD 42741)
Track EUTELSAT 172B (NORAD catalog number 42741) 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 is object B of 2017's 29th orbital launch (COSPAR designation 2017-029B). It went up together with 1 other satellite from that launch still in the active catalog. As of this element set it had completed roughly 3,457 revolutions of Earth.
Moving at about 3.07 km/s, EUTELSAT 172B sits in the geostationary belt roughly 35,786 km above the equator, where its 23.9-hour orbit matches Earth's rotation — seen from the ground it stays parked over the same longitude around the clock. The orbit is essentially circular (eccentricity 0.0000). Its near-equatorial 0.0° inclination keeps it above the tropics at all times. Its orbital plane crosses the equator northbound at right ascension 135.2°.
Orbital elements
| Orbit regime | geostationary/geosynchronous orbit (GEO) |
|---|---|
| Perigee × apogee altitude | ~35,793 km × 35,794 km |
| Inclination | 0.02° |
| Orbital period | 1436.1 min (1.00 rev/day) |
| Eccentricity | 0.00002 |
| Element set epoch | 2026-09-07 |
| COSPAR designation | 2017-029B |
| NORAD catalog number | 42741 |
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
EUTELSAT 172B 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 EUTELSAT 172B from the ground?
Not with the naked eye. At its altitude EUTELSAT 172B 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 EUTELSAT 172B in the Other Active Satellites group — usually craft from the same or adjacent launches:
- VIASAT-2 (NORAD 42740)
- QZS-2 (MICHIBIKI-2) (NORAD 42738)
- ECHOSTAR 21 (NORAD 42749)
- HXMT (HUIYAN) (NORAD 42758)
- COSMOS 2518 (EKS 2) (NORAD 42719)
- CARTOSAT-2E (NORAD 42767)
Browse the Other Active Satellites directory or the full satellite directory · What is a TLE? · WatchSat live globe