Inside America’s Silent Sentinels: The Untold Story of GSSAP in Space Surveillance
GSSAP-1 and GSSAP-2 launched July 28, 2014, from Cape Canaveral, with GSSAP-3 and GSSAP-4 following in 2016 and GSSAP-5 and GSSAP-6 in 2022, expanding the U.S. surveillance constellation in geosynchronous orbit. The satellites have drawn international scrutiny for close approaches to Russian and Chinese GEO satellites. GSSAP-2 was retired to graveyard orbit in August 2023. GSSAP-7 and 8 are planned for launch by 2027.