mckero
aac1fa0da5
The map info panel chose which pass to describe with
allPasses.find { it.catNum == catnum && it.progress < 1 }
but OrbitalPass.progress defaults to 0 and nothing in the repository or the
prediction layer ever assigns it - PassesViewModel computes progress on its own
local copy of the list and never writes it back. The predicate was therefore
always true, so the lookup returned the satellite's *first* pass forever.
Simulated over an ISS timeline with three passes (10:00, 12:00, 14:00), 4 of 6
sampled instants were wrong: from 10:30 onwards the panel still pointed at the
10:00 pass with its countdown frozen at 00:00:00, instead of counting down to the
12:00 and 14:00 passes. Only re-fetching the pass list refreshed it.
Select by time now: the pass currently in progress, otherwise the earliest one
still upcoming. Extracted as the pure internal selectCurrentOrNextPass so it is
testable, with the reasoning recorded so the progress field is not reintroduced
as a filter here.
Restoring the old predicate fails 5 of the 6 new tests; with the fix
:feature:map:testDebugUnitTest, :core:domain:test, :core:data:testDebugUnitTest
and :feature:roaming:testDebugUnitTest are all green.
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.