mckero cd70e3654c fix(sources): a custom URL no longer wipes the manual-import type index
The previous commit indexed custom-URL satellites under "Other", which is the key manual
file import already writes. setSatelliteTypeIds overwrites rather than merges, so importing
a file and then updating from a custom URL erased each other's type index - a probe
confirmed it in both directions.

The satellites were never at risk: database rows survive because insertEntries is REPLACE
with no delete, and the selection is a separate id list. What was lost was their grouping in
the type filter. Still worth a distinct key, since a URL and a hand-picked file are
different things.

Custom URLs now use "Custom". Manual import keeps "Other". The test asserts the new key and
that "Other" stays untouched, so the collision cannot come back unnoticed.
2026-08-26 03:51:03 +00:00

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.

License

The Look4Sat application code is licensed under the GNU General Public License v3.0.

The CW decoder in feature/cw bundles the DeepCW neural decoding model, licensed under the GNU Affero General Public License v3.0 only (AGPL-3.0-only). Because the combined work incorporates an AGPL-3.0 component, the combined work is distributed under the GNU Affero General Public License v3.0 — GPL-3.0 Section 13 permits the combination, and AGPL-3.0 Section 13 applies to the combined work as a whole. Model provenance and attribution are documented in feature/cw/licenses/NOTICE.md; the original GPL-3.0 text is preserved at feature/cw/licenses/Look4Sat-GPL-3.0.txt. The CW model runs locally on-device and does not provide services over a network.

Star History

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Description
Satellite tracker and pass predictor for Android, inspired by Gpredict
https://play.google.com/store/apps/details?id=com.rtbishop.look4sat
Readme AGPL-3.0
55 MiB
0 Stars 1 Watchers 0 Forks
v4.6.2
Latest
2026-08-27 15:47:20 +00:00
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