mckero
9cfa238e5c
根因： PassesViewModel.updateProgress() 计算进度时用 deltaNow / deltaTotal， 如果 TLE 损坏、轨道退化、或数据解析错误导致 losTime <= aosTime， deltaTotal 为 0 或负数，除法触发 ArithmeticException 或产生 Infinity。 触发条件： 1. OMM/CSV 历元解析 bug（已在另一 commit 修复）导致时间错乱 2. 深空卫星 TLE 过期几十年，losTime 计算失败回退到 aosTime 3. 手动导入格式错误的 TLE 修复： 在除法前检查 deltaTotal <= 0f，跳过该过境的进度更新。 用户仍能看到过境列表，但异常过境不显示进度条（优雅降级）。 影响： 避免因单个异常 TLE 导致整个过境列表页面崩溃。
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.