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Starlink

Every Starlink satellite in orbit, on one map. The positions aren't downloaded: your browser computes them, several times a second, from the published orbital elements. Each dot is a satellite about the size of a car, doing roughly 27,000 km/h.

… satellites in orbit
… in sunlight right now
… average altitude
--:--:-- UTC
Loading orbital elements…

Selected

Click a dot on the map, or search for a name.

Above you

How many are above your horizon right now? Your location stays in your browser.

The data

Source
CelesTrak
Elements fetched
…
Propagation
SGP4
Dots refreshed
…

How this works

Every few hours the box behind huuu.nl fetches the current two-line element sets for all Starlink satellites from CelesTrak, which publishes them from the US Space Force catalogue. A TLE is two lines of numbers describing an orbit at a moment in time. The page runs SGP4, the standard model for these, to work out where each satellite is now: latitude, longitude, altitude and speed. The further the elements are from now, the less exact the position gets, which is why they're refreshed regularly.

The shells

Starlink flies in shells: groups of orbital planes at the same height and inclination. Most satellites are in the 53° shells, which cover the populated middle latitudes. The 43° shell adds capacity over the busiest parts of the world, and the polar shells at 70° and 97.6° reach the far north and south. Satellites that are still raising their orbit after launch, or lowering it at the end of their life, sit lower than 450 km and are shown in grey.

Why "above you" says 25°

A Starlink dish only talks to satellites well above the horizon, roughly 25° or more, so that's the cut-off used here. Below it, there are always many more.

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