On August 19, 2016 at 04:52 UTC the “Delta-4” rocket-carrier was launched from Cape Canaveral launch site of US Air Force. The launch was performed by United Launch Alliance supported by the 45th Space Wing of US Air Force. The rocket orbited two surveillance satellites - GSSAP (Geosynchronous Space Situational Awareness Program). Although many of the technical specifications of the GSSAP satellites remain classified, the Air Force says the spacecraft have optical payloads to image the location, orbit, size and status of space objects.