Space Detection and Tracking System

Space Detection and Tracking System, or SPADATS, was built in 1960 to integrate defense systems built by different branches of the United States Armed Forces and was placed under North American Aerospace Defense Command (NORAD). The Air Force had a program called Spacetrack, which was a network of space-probing cameras and radar. The Navy had a system called SPASUR, a space surveillance system that was "an electronic fence" the protected the southern United States.