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Thule Site J (J-Site) is a United States Space Force (USSF) radar station in Greenland near Pituffik Space Base for missile warning and spacecraft tracking.The northernmost station of the Solid State Phased Array Radar System, the military installation was built as the 1st site of the RCA 474L Ballistic Missile Early Warning System and had 5 of 12 BMEWS radars.
The Ballistic Missile Early Warning System (BMEWS) was a radar system built by the United States (with the cooperation of Canada and Denmark on whose territory some of the radars were sited) during the Cold War to give early warning of a Soviet intercontinental ballistic missile (ICBM) nuclear strike, to allow time for US bombers to get off the ground and land-based US ICBMs to be launched, to ...
To accomplish its mission, the squadron operates the solid-state phased-array radar located at the Ballistic Missile Early Warning System (BMEWS), Site I. The BMEWS site is located approximately 11 miles northwest of Pituffik SB . It provides early warning detection of intercontinental ballistic missile (ICBM) launches from the Russian land ...
Thule Air Base was constructed in secret under the code name Operation Blue Jay, but the project was made public in September 1952. Construction for Thule Air Base began in 1951 and was completed in 1953. The construction of Thule is said to have been comparable in scale to the enormous effort required to build the Panama Canal. [9]
Coverage of the original PAVE PAWS and BMEWS systems, later upgraded to SSPARS and eventually to UEWR BMEWS solid-state phased-array radar at RAF Fylingdales. 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 ...
The transition of BMEWS and PAVE PAWS to SSPARS had begun with the 4 AN/FPS-50 BMEWS radars near Thule Air Base being replaced with a Raytheon AN/FPS-120 Solid State Phased Array Radar at Thule Site J (operational "2QFY87").
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BMEWS antennas at Thule, with a modern Satellite Control Network radome on the right. In 1960, the USAF Strategic Air Command (SAC) began Operation Chrome Dome, a Cold War airborne alert program devised by General Thomas S. Power to fly nuclear-armed Boeing B-52 Stratofortress bombers to the borders of the Soviet Union.