SatRadar: Satellite Tracker

Free. No account, no subscription, no ads.
The free version tracks everything, not just the ISS.

Ten thousand satellites are flying over your head right now. SatRadar shows you every one of them, where they actually are, doing what they actually do — drawn from the same orbital telemetry that mission controllers and ground stations use every day. Open the app and the sky is already alive.

Accurate to the second: real orbital telemetry, the same TLE data NORAD publishes, checked against ground truth.

This is the sky we built. The Space Age started as one beep from Sputnik in 1957 and turned into a near-continuous procession of launches that has put more than ten thousand active spacecraft above us — Starlink and OneWeb meshing the planet in broadband, the GPS / GLONASS / Galileo / BeiDou networks holding civilisation's clocks, weather sentinels watching whole oceans, the ISS and Tiangong with humans aboard. SatRadar lets you watch all of it move, in real time, at the scale it actually is.

Free to use, with no account required:

• The International Space Station and Tiangong, traced across the sky in real time
• The complete global navigation networks: GPS, GLONASS, Galileo, and BeiDou
• Weather sentinels watching from geostationary perches: GOES, NOAA, METEOSAT
• Full orbital trails on the GNSS fleet, so you can see the mathematical poetry of a 12-hour orbit at a glance
• Tap any satellite to see what it is, where it is going, and how high above you it sits right now

A one-time Starlink unlock opens the full mesh — nearly ten thousand satellites appearing as a living lattice around the planet, every laser cross-link drawn between its real endpoints, every hop between birds animated in actual sequence. The same unlock brings the rest of low Earth orbit with it: OneWeb threads its broadband shell, Iridium NEXT lights up the polar planes, the commercial Earth-observation fleets from Planet, Spire, and IceEye start watching, and the communications constellations of Astranis, O3B, Orbcomm, and Globalstar show up in their actual orbital planes. It is the most complete picture of human activity in low Earth orbit you can hold in your hand.

A second one-time unlock — Time Travel — turns the whole thing into a time machine. Go back to October 1957 and the sky empties to a single object: Sputnik 1, circling a planet that had never seen an arti