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]
Under the Joint Electronics Type Designation System (JETDS), all U.S. military radar and tracking systems are assigned a unique identifying alphanumeric designation. The letters “AN” (for Army-Navy) are placed ahead of a three-letter code. [4]
The AN/FPS-132 Upgraded Early Warning Radar (UEWR) is a series of phased array radar systems used for long-range early warning and space surveillance, operating as part of the United States Missile Defense and Space Surveillance Network.
Thus, the AN/FPS-132 represents the 132nd design of an Army-Navy “Fixed, Radar, Search” electronic device. [4] [5]
The Solid State Phased Array Radar System is a phased array radar with 2500 "solid state transmitter" modules. [6]
It began replacing PAVE PAWS when the first AN/FPS-115 face was taken off-line for the radar upgrade. New AN/FPS-123 Early Warning Radars became operational in (Beale) and (Cape Cod) in each base's existing PAVE PAWS "Scanner Building". [7]
In 2001 SSPARS equipment included:
After the Fylingdales BMEWS radars had been replaced by Raytheon/Cossor AeroSpace and Control Data Corporation (embedded CDC-Cyber computer) at a cost of US $100M,[ citation needed ] in February 1995 the "missile warning center at Cheyenne Mountain AS [was] undergoing a $450 million upgrade program". [15] The entire SSPARS became operational on January 31, 2001 when the "SSPARS Site" [16] at Clear AFS (separate from the BMEWS site) had Initial Operational Capability. [17] The Clear AN/FPS-120 was subsequently "upgraded to the AN/FPS-123 model" SSPA Radar, [18] and the SSPARS was modified in the Early Warning Radar Service Life Extension Program [1] The US approved sale of an[ which? ] AN/FPS-115 to Taiwan in 2000 [19] and it was introduced in 2006. [20]
The UK and Alaska BMEWS stations became SSPARS radar stations when their respective Raytheon AN/FPS-126 radar [21] and 2001 Raytheon AN/FPS-120 became operational. [22] In 2007, 100 owners/trustees of amateur radio repeaters near AN/FPS-123 radars were notified to lower their power output to mitigate interference, [23] and AN/FPS-123s were part of the Air Force Space Surveillance System by 2009. [24] BAE Systems began a 2007 contract for SSPARS maintenance. [25] The SSPARS radar electronics was subsequently upgraded, e.g., the Beale radar [19] and the Fylingdales FPS-126 each became an AN/FPS-132 Upgraded Early Warning Radar (UEWR) [26] by Raytheon. [27] The Beale AN/FPS-123 was upgraded to a Raytheon AN/FPS-132 (UEWR) with capabilities to operate in the Ground-based Midcourse Defense (GMD) ABM system—the Beale UEWR included "Avionics", "T/R modules", [28] "FEX/TTG", "BSG", "Signal Processor", and other changes. [29] After additional UEWR installations for GMD at Thule Site J and the UK (contracted 2003), [30] a 2012 ESD/XRX Request for Information for replacement, and remote operation, of the remaining "PAVE PAWS/BMEWS/PARCS systems" at Cape Cod, Alaska, and North Dakota was issued. [31] The Alaska AN/FPS-132 was contracted in fall 2012 [32] and the Cape Cod installation in 2013. [19]
The AN/FPS-132 Block-5 was ordered by the Qatar Emiri Air Force, and is in construction. [33]
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PAVE PAWS is a complex Cold War early warning radar and computer system developed in 1980 to "detect and characterize a sea-launched ballistic missile attack against the United States". The first solid-state phased array deployed used a pair of Raytheon AN/FPS-115 phased array radar sets at each site to cover an azimuth angle of 240 degrees. Two sites were deployed in 1980 at the periphery of the contiguous United States, then two more in 1987–95 as part of the United States Space Surveillance Network. One system was sold to Taiwan and is still in service.
The RCA 474L Ballistic Missile Early Warning System was a United States Air Force Cold War early warning radar, computer, and communications system, for ballistic missile detection. The network of twelve radars, which was constructed beginning in 1958 and became operational in 1961, was built to detect a mass ballistic missile attack launched on northern approaches [for] 15 to 25 minutes' warning time also provided Project Space Track satellite data.
Royal Air Force Fylingdales is a Royal Air Force station on Snod Hill in the North York Moors, England. Its motto is Vigilamus. It is a radar base and is also part of the Ballistic Missile Early Warning System (BMEWS). As part of intelligence-sharing arrangements between the United States and United Kingdom, data collected at RAF Fylingdales are shared between the two countries. Its primary purpose is to give the British and US governments warning of an impending ballistic missile attack. A secondary role is the detection and tracking of orbiting objects; Fylingdales is part of the United States Space Surveillance Network. As well as its early-warning and space-tracking roles, Fylingdales has a third function – the Satellite Warning Service for the UK. It keeps track of spy satellites used by other countries, so that secret activities in the UK can be carried out when they are not overhead. The armed services, defence manufacturers and research organisations, including universities, take advantage of this facility.
Rome Laboratory is a U.S. Air Force research laboratory for "command, control, and communications" research and development and is responsible for planning and executing the USAF science and technology program.
The United States Space Surveillance Network (SSN) detects, tracks, catalogs and identifies artificial objects orbiting Earth, e.g. active/inactive satellites, spent rocket bodies, or fragmentation debris. The system is the responsibility of United States Space Command and operated by the United States Space Force and its functions are:
Clear Space Force Station is a United States Space Force radar station for detecting incoming ICBMs and submarine-launched ballistic missiles to NORAD's command center and to provide Space Surveillance data to the United States Space Force. Clear's AN/FPS-123 Upgraded Early Warning Radar is part of the Solid State Phased Array Radar System (SSPARS) which also includes those at Beale AFB, Cape Cod Space Force Station, RAF Fylingdales and Thule Site J. The "historic property" was one of the Alaska World War II Army Airfields and later a Cold War BMEWS site providing NORAD data to Colorado's BMEWS Central Computer and Display Facility (CC&DF).
Cavalier Space Force Station, North Dakota, is a United States Space Force installation, where the 10th Space Warning Squadron, Space Delta 4, United States Space Force monitors and tracks potential missile launches against North America with the GE AN/FPQ-16 Enhanced Perimeter Acquisition Radar Attack Characterization System (PARCS). The PARCS also monitors and tracks over half of all earth-orbiting objects to enable space situation awareness and space control. In addition to contractors, NORAD has US and Canadian military members assigned to the facility.
The AN/FPS-108 COBRA DANE is a PESA phased array radar installation operated by Raytheon for the United States Space Force at Eareckson Air Station on the island of Shemya, Aleutian Islands, Alaska. The system was built in 1976 and brought online in 1977 for the primary mission of gathering intelligence about Russia's ICBM program in support of verification of the SALT II arms limitation treaty. Its single face 29 m (95 ft) diameter phased array radar antenna 52.7373°N 174.0914°E faces the Kamchatka Peninsula and Russia's Kura Test Range. COBRA DANE operates in the 1215–1400 MHz band and can track items as small as a basketball sized drone at distances of several hundred miles.
The 21st Wing is an inactive wing of the United States Air Force.
The 13th Space Warning Squadron (13SWS) is a missile warning unit assigned to the United States Space Force and located at Clear Space Force Station 5 miles (8 km) south of Anderson, Alaska
Eldorado Air Force Station located 35 miles (56 km) south of San Angelo, Texas was one of the four unique AN/FPS-115 PAVE PAWS, early-warning phased-array radar systems. The 8th Space Warning Squadron, 21st Space Wing, Air Force Space Command operated at Eldorado Air Force Station.
Cape Cod Space Force Station is a United States Space Force station located in the northwest corner of Joint Base Cape Cod, United States, on Flatrock Hill in Bourne, Massachusetts. Cape Cod Space Force Station began construction in 1976 as Cape Cod Missile Early Warning Station and was renamed Cape Cod Air Force Station in 1982, before assuming its current name in 2021.
The 7th Space Warning Squadron (SWS) is the premier Space Domain Awareness sensor on the West Coast. The unit was originally established to guard the U.S. West Coast against sea-launched ballistic missiles from the eastern outskirts of Beale Air Force Base approximately 8 miles (13 km) east of Marysville, California. 7 SWS is a geographically separated unit of Space Delta 4.
The United States Air Force's 9th Space Warning Squadron was a United States Air Force missile warning unit located at Robins AFB, Georgia.
The 213th Space Warning Squadron of the Alaska Air National Guard provides early warning of Intercontinental ballistic missiles and Submarine-launched ballistic missiles to the Missile Correlation Center of North American Aerospace Defense Command. The squadron is a geographically separated unit assigned to the 168th Wing at Eielson Air Force Base.
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 station has the following structures:
The AN/FPQ-16 Perimeter Acquisition Radar Attack Characterization System is a powerful United States Space Force passive electronically scanned array radar system located in North Dakota. It is the second most powerful phased array radar system in the US Space Force's fleet of missile warning and space surveillance systems, behind the more modern PAVE PAWS phased array radar.
The Missile Warning Center (MWC) is a center that provides missile warning and defense for United States Space Command's Combined Force Space Component Command, incorporating both space-based and terrestrial sensors. The MWC is located at Cheyenne Mountain Space Force Station.
Eglin AFB Site C-6 is a United States Space Force radar station which houses the AN/FPS-85 phased array radar, associated computer processing system(s), and radar control equipment designed and constructed for the U. S. Air Force by the Bendix Communications Division, Bendix Corporation. Commencing operations in 1969, the AN/FPS-85 was the first large phased array radar. The entire radar/computer system is located at a receiver/transmitter building and is supported by the site's power plant, fire station, 2 water wells, and other infrastructure for the system. As part of the US Space Force's Space Surveillance Network its mission is to detect and track spacecraft and other manmade objects in Earth orbit for the Combined Space Operations Center satellite catalogue. With a peak radiated power of 32 megawatts the Space Force claims it is the most powerful radar in the world, and can track a basketball-sized object up to 22,000 nautical miles (41,000 km) from Earth.
Space Delta 2 is the United States Space Force's space domain awareness delta and is headquartered at Peterson Space Force Base, Colorado. Space Delta 2 tracks and monitors all human made objects from low Earth orbit to geosynchronous orbit and further out to deep space. It also partners with the National Oceanic and Atmospheric Administration to provide weather satellite observation for the U.S. Armed Forces. It consists of the 15th Space Surveillance, 18th Space Defense Squadron, 19th Space Defense Squadron, and 20th Space Surveillance Squadron.
BMEWS was replaced by the Solid State Phased Array Radar System (SSPARS) in 2001.
Technical Facility/Scanner Building (HAER No. MA-151-A), which houses the AN/FPS-1152 radar and related equipment… PAVE PAWS Site 1 … AN/FSS-7…designed by Avco Electronics Division… The first two PAVE PAWS sites in Massachusetts and California represented the first two-faced phased array radars deployed by the U.S.
AN/FPS-49 has a traditional azimuth bearing assembly (race and steel balls) while the AN/FPS-92 has a hydrostatic bearing (antenna floats on a high pressure film of hydraulic fluid). AN/FPQ-16 Radar Set, Perimeter Acquisition Radar Attack Characterization System - PARCS: PARCS is a single faced phased array radar system consisting of AN/FPQ-16 radar and an AN/FSQ-100 computer system located at Cavalier AFS, ND. The primary mission of the PARCS is to provide the CMC with TW/AA data on all SLBMs penetrating the coverage area. ... FORCE MANAGEMENT SYSTEM (FMS) PROVIDES THE CONUS NORAD REGION COMMANDER WITH TIME SENSITIVE INFORMATION
in March 1963 an Air Ministry review of ABM systems said of MIDAS that 'performance to date has been disappointing'.78 … A teletype circuit was established between NORAD and the ADOC in Britain to pass information derived from Site 1 at Thule.95 This was supplemented by a voice circuit with agreed formatted messages, and both were operational by October 1960. … AN/FPS-49 Range resolution 240 nm Maximum range 2,650 nm Minimum target at 1,650 m 2.8 m2 Impact accuracy North America 135 nm
North American Aerospace Defense Command and U.S. Space Command command center. ... For more than 30 years, the crews operating the missile warning center inside Cheyenne Mountain have maintained an early warning trip line [for] incoming ballistic missiles
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: CS1 maint: archived copy as title (link)Perimeter Acquisition Vehicle Entry Phased-Array Weapons System (PAVE PAWS)
The PAVE PAWS and BMEWS Beam Steering Unit (BSU), Receiver Exciter (REX), Receiver Beam Former (RBF), Array Group Driver (AGD), Radio Frequency Monitor (RFM), Frequency Time Standard (FTS), and the Corporate Feed (CFD) were built for these five radars in the late 1970s and were upgraded in the 1980s. … The PARCS Signal Processing Group (SPG) has received only "band-aid" fixes since the site's Initial Operating Capability (IOC) in 1975