The best satellite tracker.

Track 10,000+ active satellites on a real-time 3D globe. Predict every visible pass from your location. Point your phone at the sky to see what's flying over. And — uniquely — pair every satellite with the rocket launch that put it there.

What's tracked

• International Space Station — every visible pass, with crew status
• Starlink — every satellite, grouped by deployment train
• Hubble Space Telescope + James Webb (L2)
• NOAA & NASA Earth observation (GOES, Landsat, Sentinel, Suomi)
• GPS, Galileo, BeiDou, GLONASS — every active GNSS satellite
• Iridium, Globalstar, OneWeb, Kuiper — communications constellations
• SpaceX rideshare deployments — Transporter missions, smallsats
• Geostationary weather satellites — GOES-18, GOES-19, Himawari-9 (the ones LaunchDetect uses for detection)
• 10,000+ tracked objects total — CelesTrak refresh cadence