Home › Starlink › STARLINK-2131
STARLINK-2131 — Live Satellite Tracking (NORAD 47728)
Track STARLINK-2131 (NORAD catalog number 47728) 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 G of 2021's 17th orbital launch (COSPAR designation 2021-017G). It went up together with 22 other satellites from that launch still in the active catalog. As of this element set it had completed roughly 30,613 revolutions of Earth.
Moving at about 7.72 km/s, STARLINK-2131 flies in low Earth orbit at an altitude of roughly 325 × 331 km, completing one revolution every 90.9 minutes — about 15.8 trips around Earth per day. The orbit is essentially circular (eccentricity 0.0004). Inclined 53.1° to the equator, it overflies every latitude up to about 53° north and south. Its orbital plane crosses the equator northbound at right ascension 46.7°. Earth's equatorial bulge drifts that plane westward about 5.04° per day.
Orbital elements
| Orbit regime | low Earth orbit (LEO) |
|---|---|
| Perigee × apogee altitude | ~325 km × 331 km |
| Inclination | 53.06° |
| Orbital period | 90.9 min (15.83 rev/day) |
| Eccentricity | 0.00044 |
| Element set epoch | 2026-09-07 |
| COSPAR designation | 2021-017G |
| NORAD catalog number | 47728 |
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 Starlink group
STARLINK-2131 is one of 10,717 SpaceX Starlink broadband satellites in the current WatchSat catalog — the largest satellite constellation ever flown. Starlink operates in low-Earth-orbit shells around 540–570 km. See the whole Starlink constellation move live in 3D.
Can you see STARLINK-2131 from the ground?
Sometimes. Like most low-Earth-orbit spacecraft, STARLINK-2131 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 STARLINK-2131 in the Starlink group — usually craft from the same or adjacent launches:
- STARLINK-2140 (NORAD 47730)
- STARLINK-2107 (NORAD 47723)
- STARLINK-2143 (NORAD 47733)
- STARLINK-2068 (NORAD 47722)
- STARLINK-2144 (NORAD 47734)
- STARLINK-2147 (NORAD 47736)
Browse the Starlink directory or the full satellite directory · What is a TLE? · WatchSat live globe