mckero
16c746f552
findMutualPassesFallback skips a candidate with `if (refinedLos <= refinedAos) continue` but left searchStart untouched, so the next loop iteration called findNextMutualPass with the same start time and received the same pass again. Today that branch is theoretically unreachable: refineEdge's 70 s window always spans findNextMutualPass's 60 s sampling step, so the refined AOS/LOS can only move inward and never cross. But the invariant is fragile - any future change to the search step or the refine window (or a near-horizon pass whose crossings land at the window edges) makes the loop spin forever on one pass, freezing the query coroutine. Advance searchStart past the collapsed pass before skipping, breaking the cycle regardless of how the windows shift. Behaviour for the current reachable paths is unchanged.
Look4Sat: Satellite tracker
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.