rt-bishop/Look4Sat

Health v2 · maintenance only

Adoption not part of the score

1300 stars · 144 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Look4Sat is an open-source, ad-free satellite tracker and pass predictor for Android, inspired by Gpredict. It calculates satellite positions and passes offline using TLE data from Celestrak, SatNOGS, or custom imports, showing polar trajectories, ground tracks, and transceiver info.

Use cases

• predict upcoming satellite passes over my location
• track ham radio satellites on Android
• find when the ISS or Starlink satellites pass overhead
• import custom TLE files to track specific satellites
• view satellite ground track and footprint on a map
• get transceiver info for active satellite passes
• offline satellite tracking without internet

When to choose

• you need an Android app to track satellites and predict passes
• you want offline-first calculations with weekly TLE updates
• you're a ham radio operator or SDR enthusiast looking for pass schedules
• you want a free, open-source alternative to Gpredict on mobile

When to avoid

• you need desktop satellite tracking with rotor/antenna control
• you're on iOS or another non-Android platform
• you need real-time satellite telemetry decoding rather than pass prediction

Facets

application · maturity active

simulation data-visualization geospatial astronomy mobile-development jvm satellite-tracking pass-prediction ham-radio sdr tle gpredict-inspired offline-first jetpack-compose radio android mobile

Member repositories

For agents

markdown · JSON · MCP: product_card(name="rt-bishop/Look4Sat")