The Solid State Phased Array Radar System[1] (SSPARS), colloquially Ballistic Missile Early Warning System radar network (BMEWS radar network),[2] is a United States Space Force radar, computer, and communications system for missile warning and space surveillance. There are SSPARS systems at five sites: Beale Air Force Base, CA, Cape Cod Space Force Station, MA, Clear Space Force Station, AK, RAF Fylingdales, UK, and Pituffik Space Base, Greenland.[3] The system completed replacement of the RCA 474L Ballistic Missile Early Warning System when the last SSPAR was operational at then-Clear Air Force Station in 2001.[1]
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