SpaceTrackorg

SpaceTrack.org is an online data service operated by the United States Space Surveillance Network, a component of the U.S. Space Force. The site provides publicly accessible orbital data for objects in Earth orbit, including two-line element sets (TLEs) and information about cataloged satellites and debris. The service is used to monitor and predict satellite positions and to support conjunction assessment and space situational awareness.

SpaceTrack.org disseminates orbital data such as TLEs, NORAD catalogue numbers, object type, epoch, and orbital elements. Data are produced from radar and optical tracking networks and are updated regularly.

Access is primarily through registration; public TLE data are widely used by researchers, satellite operators, and hobbyists. The platform also offers restricted or authenticated data and application programming interfaces (APIs) for programmatic access by registered entities.

Operated by the US Space Force's Space Surveillance Network, SpaceTrack.org is part of the nation's space domain awareness infrastructure. As a government data service, data quality and latency reflect national security considerations; users should consult official documentation for limitations and licensing.

SpaceTrack.org is one of several services for space-tracking data; it complements commercial and academic datasets, and is integrated with other DoD and civil space data-sharing efforts.