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Look4Sat: Radio satellite tracker

Amateur radio satellite tracker and pass predictor
New in version 2.5.5
Now correctly using the hours ahead setting #66
Fixed broken pass progress indicator #67
Fixed satellite data update crash
Lots of refactoring, getting codebase ready for new features
Let this app look for satellites for you!

Thanks to the huge database provided by Celestrak and SatNOGS you have access to more than 3000
active satellites orbiting Earth at this very moment. You can search the entire DB by satellite
name or by NORAD catalog number. Track them with ease!

Satellite positions and passes are calculated relative to your location. In order to get reliable
predictions set the observation position using GPS or QTH Locator in the Settings menu.

The application is built using predict4java library, Kotlin, Coroutines, Dagger2, Retrofit2, Moshi,
Architecture Components and Jetpack Navigation. It is now and always will be completely ad-free
and open-source. Make sure you check the app developer's
GitHub repository.

Main features:

  • Predicting satellite positions and passes for up to 4 days (96 hours)

  • 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 a map

  • Custom TLE data import is available via files with TXT or TLE extensions

  • Offline first: calculations are made offline. Weekly update of TLE data is recommended.

Packages

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 2.5.5 (255) suggested Added on 2021-09-24

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

    Download APK 2 MiB PGP Signature | Build Log

  • Version 2.5.3 (253) - Added on 2021-06-24

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

    Download APK 2.4 MiB PGP Signature | Build Log

  • Version 2.5.2 (252) - Added on 2021-05-23

    This version requires Android 5.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

    Download APK 2.4 MiB PGP Signature | Build Log