mckero
8f646d76f9
Two defects in our own AMSAT page, both found by auditing the change that exposed them. The day columns claimed to be dates but were a rolling window anchored on the fetch time. Fetching at 06:07 UTC put 17.9 hours of yesterday into the cell labelled today; measured against a live amsat.org page of 1021 reports, 73% of them landed in the wrong day column and none matched the official cell. Days are now UTC calendar days and slots are fixed UTC bands - slot 0 is 22:00-24:00, slot 11 is 00:00-02:00 - so a cell's contents match its label whenever it is fetched. The day cell painted one colour for the whole day, taken from the first slot that had a report, so a satellite that worked all morning and failed all afternoon looked identical to one that worked once - the reported symptom. It now draws one stripe per two-hour slot in the same 64x28 dp footprint. Twelve stripes are about 5 dp each, roughly 15 px at 440 dpi, and runs of the same status merge visually, so a day reads as a few blocks rather than twelve lines. Every density from ldpi up allocates all twelve without dropping one, and the 4 dp corner radius leaves 95% of the end stripes visible. The report count text is gone; tapping a day still lists every report from it, which was already the richer view. buildStatuses and ApiReport are internal rather than private so the grid contract can be tested. AmSatSlotBuildTest drives it directly: fetchStatus cannot be tested here because the parsing around it uses Android's JSONObject, a JVM stub that makes every call return null - eight of nine tests written against it failed for that reason before being rewritten. Also corrects three KDoc comments claiming 5 days when the code builds 3, and records in AGENTS.md that the status colours are ARGB literals in core:data, duplicated in MainTheme, which anything needing themeable or colour-blind-safe colours has to fix first.
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.