Default ephemeris data

By default, AWS Ground Station uses publicly available data from Space-Track, and no action is required to supply AWS Ground Station with these default ephemerides. These ephemerides are two-line element sets (TLEs) associated with your satellite's NORAD ID. All default ephemerides have a priority of 0. As a result, they will be overridden, always, by any non-expired, custom ephemerides uploaded via the ephemeris API, which must always have a priority of 1, or greater.

Satellites without a NORAD ID must upload custom ephemeris data to AWS Ground Station. For example, satellites that have just launched or that are intentionally omitted from the Space-Track catalog would have no NORAD ID and would need to have custom ephemerides uploaded. For more information on providing custom ephemeris data, see: Providing Custom Ephemeris Data.