atsunatsu d57832b0d4 fix(i18n): use system locale for date formatting instead of English
PassesViewModel and PassesScreen used Locale.ENGLISH for
SimpleDateFormat, causing day-of-week names like 'Sun' to
always show in English. Changed to Locale.getDefault() so
the device's language setting is respected.

Affects: 'EEE, dd MMM yyyy' date labels in the pass list
(group headers and sun times), and 'HH:mm:ss' time format.
2026-08-02 19:30:42 +08:00

Look4Sat: Satellite tracker

Look4Sat CI

Get it on Google Play Get it on F-Droid

Radio satellite tracker and pass predictor for Android, inspired by Gpredict

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.

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Readme GPL-3.0
53 MiB
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Kotlin 79.6%
Java 20.4%