Satellite Tracker

Real-time SGP4 positions (same-origin TLE cache). Click a satellite name to zoom and draw past 12 h (dashed) and next 12 h (solid) tracks. Click the map to pin a site and list next-pass times for a week.

Last update: —
Optical SAR Altimetry Weather
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Passes

Click the map to pin a site.

Tracked satellites

Coverage over Great Lakes

The Great Lakes region (41°N–49°N, 74°W–92°W) receives regular coverage from multiple satellite constellations:

TLE cache is served from /data/tle (Celestrak is blocked outbound from this host). Not for navigation.