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Look4Sat: Satellite tracker

Radio satellite tracker and pass predictor for Android
New in version 2.6.0
Fixed James Webb Space Telescope crash
However still reporting erroneous data
Fixed DataParser bug, issues #77 & #80
Track satellite passes with ease!

Thanks to the huge database provided by Celestrak and SatNOGS you have access to more than 3000 active satellites orbiting Earth. You can search the entire DB by satellite name or by NORAD catnum.

Satellite positions and passes are calculated relative to your location. To get reliable info make sure to set the observation position using GPS or QTH Locator in the Settings menu.

The application is built using Kotlin, Coroutines, Architecture Components and Jetpack Navigation. It is now and always will be completely ad-free and open-source.

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 2.6.0 (260) suggested Added on 2022-01-11

    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.
    • 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 1.6 MiB PGP Signature | Build Log

  • Version 2.5.9 (259) - Added on 2021-12-15

    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.
    • 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 1.6 MiB PGP Signature | Build Log

  • Version 2.5.7 (257) - Added on 2021-10-31

    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.
    • 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 1.9 MiB PGP Signature | Build Log