Geosynchronous Space Situational Awareness Program

The Geosynchronous Space Situational Awareness Program is a constellation of satellites in service with the U.S. Space Force designed to track and identify satellites in geosynchronous orbit from near-geosynchronous orbit. The satellites were built by Orbital ATK (now Northrop Grumman Innovation Systems).

The exact capabilities and sensors of the satellites remain classified. They are known to be capable of performing rendezvous and proximity operations, in which the satellite...