Education · Open source
Look4Sat: Satellite tracker
Arty Bishop
Satellite tracker and pass predictor for Android
Opens the official F-Droid page
About Look4Sat: Satellite tracker
Track satellite passes with ease!
Thanks to Celestrak and SatNOGS you have access to over 9000 active satellites.
You can search the entire database by NORAD Catalog Number or the satellite's name.
Orbital positions and passes are calculated relative to your location.
To get reliable data make sure to set the station position via the app Settings.
The application is built using Kotlin, Coroutines, Jetpack Compose and Navigation.
It is now and always will be completely ad-free and open-source.
Main features:
Predicting satellite positions and passes for up to 10 days
Showing the list of currently active and upcoming satellite passes
Showing the active pass progress, polar trajectory and transceivers info
Showing the satellite positional data, footprint and ground track on the map
Custom TLE satellite data import is available via Three Line Element .txt files
Offline first: calculations are made offline. Weekly TLE data update is recommended.
What's new in 4.4.9
* Added AOS/LOS timers to PassItem and NextPassRow components * Replaced Swipe-to-Filter functionality with a Search bar * Tweaked SSTV image saving flow, added permissions #264 * Fixed linear Doppler calculator and offset restore #265 * Corrected CelestialComputer moon calculations error #266 * Added Look4Sat-rPi project ref to app Settings/README #267
How to install Look4Sat: Satellite tracker
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open Look4Sat: Satellite tracker from your app drawer.



