mckero
e2263668ce
Three contrast defects, each measured with a WCAG relative-luminance probe rather than eyeballed. GridLineColor was 0xFF3A3A3A: 1.65:1 against the navBar background and 1.36:1 against a card, where Material asks 3:1 for non-text elements. Every rule and column separator on the Log page is drawn with it, so the grid the page is built around was barely there - and gone in sunlight. 0xFF6D6D6D is the lowest grey clearing 3:1 against both (3.62:1 and 3.00:1). The upload column was a green tick and nothing else. This app applies a night filter that zeroes green and blue, under which CheckGreen computes to 1.17:1 - the column disappeared entirely. Changing the colour does not fix it, because colour was also the only thing separating sent from waiting, which is the case Material calls out directly. The cell now reads OK or an ellipsis, so the state survives both the filter and colour blindness, and a contact that has not been tried is finally distinguishable from one that has. The linear-transponder passband range was 11sp, below Material's body-small floor of 12sp. That is the frequency an operator reads mid-pass to know where the transponder ends. The session group header stays at 11sp: it is a label, not information. Yellow survives the night filter at 4.69:1 because it is red-dominant, so the swipe and undo affordances needed nothing here.
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.