Space-Track — independent third-party profile of a public API surface, by API Evangelist. US military space surveillance REST API providing Two-Line Element (TLE) sets, conjunction data messages, orbital element sets, satellite catalog data, and decay predictions for tracked satellites and debris operated by the 18th Space Control Squadron.
space tle satellites apis-json space-surveillance orbital-data us-military debris-tracking conjunction-data
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Updated
Sep 12, 2026