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  • Det 4, 21st Operations Group

    Detachment 4, 21st Operations Group, provides optical surveillance for the Space Surveillance Network. The unit is located at Morón Air Base, Spain, about 35 miles southeast of Seville, Spain. It is a geographically separated unit which reports to the 21st Operations Group, and is assigned to the 21st Space Wing, Peterson Air Force Base, Colo. The
  • Det 2, 21st Operations Group

    Detachment 2, 21st Operations Group is a dedicated space surveillance unit on the island of Diego Garcia, in the British Indian Ocean Territories. MISSION The primary mission of the detachment is to detect, track, and identify all tasked space objects within its area of coverage. The unit provides data on deep space objects in the orbits from 3,000
  • 20th Space Control Squadron, Detachment 1

    20th Space Control Squadron, Detachment 1, operates the Air Force Space Surveillance System, which is comprised of the Alternate Space Control Center and Air Force Fence headquartered in Dahlgren, Va. The Air Force Fence currently consists of three transmitters and six receivers located along the 33rd parallel in the United States. MISSION The
  • 76th Space Control Squadron

    The 76th Space Control Squadron, Peterson AFB, Colo., provides combat space superiority effects to the Commander, Joint Forces Component Command - Space and theater Combatant Commanders. THE 76th SPCS ... · Operates and maintains the Counter Communications System · Deploys globally to conduct mobile and transportable space superiority operations as
  • Det 3, 21st Operations Group

    Detachment 3, 21st OPERATIONS GROUP Maui, Ground-based Electro-Optical Deep Space Surveillance (GEODSS) Detachment 3, 21st Operations Group is a dedicated space surveillance unit in the state of Hawaii, on the island of Maui, approximately 100 miles southeast of Hickam Air Force Base (AFB) on the island of Oahu. The detachment operates at the Maui
  • Det 1 21st Operations Group

    Detachment 1, 21st Operations Group is a dedicated space surveillance unit in the northwest corner of the U.S. Army's White Sands Missile Range, approximately 30 miles southeast of the town of Socorro, N.M. The detachment was the first operational site in the Ground-based Electro-Optical Deep Space Surveillance system. MISSION The primary mission
  • Pave PAWS FAQs

    The Pave Phased Array Warning System is an Air Force Radar system designed to guard North America against sea-launched and intercontinental ballistic missiles.The Pave PAWS radar uses small active antenna elements coordinated by two computers; one computer is on-line at all times, while the second automatically takes control if the first fails. The

    Detachment 3 is the largest and northernmost unit of eight worldwide satellite tracking stations in the Air Force Satellite Control Network (AFSCN). The 22nd Space Operations Squadron, a unit of the 50th Space Wing headquartered at Schriever Air Force Base, Colorado, operationally controls Det .3 within the AFSCN. Detachment 3 is located
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Pave PAWS Radar

PAVE PAWS is an Air Force Space Command radar system operated by three 21st Space Wing squadrons for missile warning and space surveillance. PAVE PAWS radars are located at Cape Cod Air Force Station, Mass., Beale Air Force Base, Calif., and Clear AFS, Alaska. Read full Pave PAWS factsheet Click here for more information.



The AN/FPS-85 Phased Array Space Surveillance Radar provides space situational awareness for U.S. Strategic Command's space control mission area. It is one of 29 sensors that comprise the global Space Surveillance Network (SSN), and is the only phased array radar dedicated to space surveillance. Read the full AN/FPS-85 fact sheet Click here for more information.



Ground-Based Electro-Optical Deep Space Surveillance System, or GEODSS, plays a vital role in tracking deep space objects.
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