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YAOGAN-17 01B — Live Satellite Tracking (NORAD 39240)
Track YAOGAN-17 01B (NORAD catalog number 39240) 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 2013's 46th orbital launch (COSPAR designation 2013-046B). It went up together with 2 other satellites from that launch still in the active catalog. As of this element set it had completed roughly 63,937 revolutions of Earth.
Its speed swings from 7.00 km/s at apogee to 7.63 km/s at perigee. YAOGAN-17 01B flies in low Earth orbit at an altitude of roughly 772 × 1,420 km, completing one revolution every 107.0 minutes — about 13.5 trips around Earth per day. The orbit is mildly elliptical (eccentricity 0.0434), so its altitude varies between 772 km and 1,420 km over each revolution. Inclined 63.4° to the equator, it overflies every latitude up to about 63° north and south. Its orbital plane crosses the equator northbound at right ascension 239.2°. Earth's equatorial bulge drifts that plane westward about 2.58° per day.
Orbital elements
| Orbit regime | low Earth orbit (LEO) |
|---|---|
| Perigee × apogee altitude | ~772 km × 1,420 km |
| Inclination | 63.38° |
| Orbital period | 107.0 min (13.45 rev/day) |
| Eccentricity | 0.04335 |
| Element set epoch | 2026-09-07 |
| COSPAR designation | 2013-046B |
| NORAD catalog number | 39240 |
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
YAOGAN-17 01B 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 YAOGAN-17 01B from the ground?
Sometimes. Like most low-Earth-orbit spacecraft, YAOGAN-17 01B is visible only around dawn and dusk, when your sky is dark but the satellite is still sunlit — and whether you can spot it depends on its size and reflectivity. See pass predictions for your location for when it is above your horizon and sunlit.
Related satellites
Nearest catalog neighbors of YAOGAN-17 01B in the Other Active Satellites group — usually craft from the same or adjacent launches:
- YAOGAN-17 01A (NORAD 39239)
- YAOGAN-17 01C (NORAD 39241)
- AMOS-4 (NORAD 39237)
- ES'HAIL 1 (NORAD 39233)
- GONETS-M 5 (NORAD 39249)
- GONETS-M 6 (NORAD 39250)
Browse the Other Active Satellites directory or the full satellite directory · What is a TLE? · WatchSat live globe