Satellite tracker — how to track satellites live
Cosmik is a free, real-time satellite tracker: over 20,000 tracked objects orbit Earth right now — space stations, internet constellations, weather satellites, telescopes, and rocket debris. Here's how live tracking works and how to see it all yourself in 3D, free: open the live map →
How satellite tracking works
Radars and telescopes (led by the US Space Force) measure every object's orbit and publish it as TLEs (two-line element sets) via services like CelesTrak. From a fresh TLE, the SGP4 algorithm predicts a satellite's exact position minutes or days ahead — that's what Cosmik computes live in your browser for the whole catalogue, no server needed.
Track satellites in 4 steps
- 1. Open gocosmik.com — the 3D map runs in any modern browser, mobile included.
- 2. Zoom to Earth — every satellite appears in its true position, updated continuously. Filter Starlink, GPS, weather satellites and more.
- 3. Switch to the sky view with your location on — see exactly what's crossing your sky right now, and when the next pass comes.
- 4. Follow anything with ★ — free push or email alerts before it flies over, plus launch and reentry notifications.
What to track first
- The ISS — the brightest artificial object in the sky. See pass times for your city.
- A fresh Starlink train — the famous line of lights after each SpaceX launch.
- Hubble and Tiangong — icons you can watch cross the sky.
- Whatever just launched — follow the launch news and watch new satellites deploy in 3D.
