AN/FPQ-16 PARCS
The AN/FPQ-16 PARCS is a phased array radar system housed in a 37 m (121 ft) tall structure which continuously provides critical missile warning and space surveillance data to North American Aerospace Defense Command (NORAD), United States Strategic Command (USSTRATCOM), and regional combatant commanders.
Its single-faced phased array radar is pointed northward over Hudson Bay. In normal operation PARCS can spot an object the size of a basketball (24 cm) at 3000 km (2000 miles). Tests during the 1970s & 1980s showed that with proposed software updates (Not carried out) it could spot objects less than 9 cm in size. It analyzes more than 20 000 tracks per day, from giant satellites to space debris.
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