2015 – U.S.: ATRR, GSSAP, ANGELS, and SBSS – Snapshot

The majority of known space-based SSA satellites are run by the U.S. Air Force’s 1st Space Operations Squadron (1 SOPS) from Schriever Air Force Base, Colorado.10“Fact Sheet: 1ST Space Operations Squadron.” USAF. April 16, 2015. http://www.schriever.af.mil/library/factsheets/factsheet.asp?id=3912. (...