We distill the GPS broadcast ephemerides and almanacs from the navigation message received by our vast ground network.

Both the broadcast ephemerides and the the broadcast almanacs for each GPS satellite are available in a RINEX-like file format. We include the ("Klobuchar") ionosphere correction parameters in the broadcast ephemerides files. The full resolution broadcast ephemerides are also available in a streaming socket format.

File data is updated once every 5 minutes while socket access is a continuous repeating feed. We provide these data formats from multiply redundant data centers for very high distribution and access reliability.