Education · Open source

Look4Sat: Satellite tracker

Arty Bishop

Satellite tracker and pass predictor for Android

Download

Opens the official F-Droid page

Look4Sat: Satellite tracker screenshot 1Look4Sat: Satellite tracker screenshot 2Look4Sat: Satellite tracker screenshot 3Look4Sat: Satellite tracker screenshot 4

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

  1. Tap Download — the app's official page on F-Droid opens.
  2. Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
  3. If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
  4. Open Look4Sat: Satellite tracker from your app drawer.

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