Cobra Dane
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The AN/FPS-108 COBRA DANE is a PESA
phased array In antenna (radio), antenna theory, a phased array usually means an electronically scanned array, a computer-controlled Antenna array, array of antennas which creates a radio beam, beam of radio waves that can be electronically steered to point ...
radar Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track ...
installation operated by
Raytheon Raytheon is a business unit of RTX Corporation and is a major U.S. defense contractor and industrial corporation with manufacturing concentrations in weapons and military and commercial electronics. Founded in 1922, it merged in 2020 with Unite ...
for the
United States Space Force The United States Space Force (USSF) is the space force branch of the United States Department of Defense. It is one of the six United States Armed Forces, armed forces of the United States and one of the eight uniformed services of the Unite ...
(originally for the
United States Air Force The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its ori ...
) at Eareckson Air Station on the island of
Shemya Shemya or Simiya () is a small island in the Semichi Islands group of the Near Islands chain in the Aleutian Islands archipelago southwest of Alaska, at . It has a land area of , and is about southwest of Anchorage, Alaska. It is wide and long ...
,
Aleutian Islands The Aleutian Islands ( ; ; , "land of the Aleuts"; possibly from the Chukchi language, Chukchi ''aliat'', or "island")—also called the Aleut Islands, Aleutic Islands, or, before Alaska Purchase, 1867, the Catherine Archipelago—are a chain ...
,
Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
. The system was built in 1976 and brought online in 1977 for the primary mission of gathering intelligence about Russia's
ICBM An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...
program in support of verification of the SALT II arms limitation treaty. Its single face diameter phased array radar antenna faces the
Kamchatka Peninsula The Kamchatka Peninsula (, ) is a peninsula in the Russian Far East, with an area of about . The Pacific Ocean and the Sea of Okhotsk make up the peninsula's eastern and western coastlines, respectively. Immediately offshore along the Pacific ...
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 "COBRA" designation indicates a general Defense Intelligence program and, in accordance with the Joint Electronics Type Designation System, the "AN/FPS-108" designation represents the 108th design of an Army-Navy fixed radar (pulsed) electronic device for searching.


Description

It initially employed a
Control Data Corporation Control Data Corporation (CDC) was a mainframe and supercomputer company that in the 1960s was one of the nine major U.S. computer companies, which group included IBM, the Burroughs Corporation, and the Digital Equipment Corporation (DEC), the N ...
Cyber 74 mainframe computer for data processing. Data from the radar is sent to the
North American Aerospace Defense Command North American Aerospace Defense Command (NORAD ; , CDAAN), known until March 1981 as the North American Air Defense Command, is a Combined operations, combined organization of the United States and Canada that provides aerospace warning, air ...
(NORAD) at
Peterson Space Force Base Peterson Space Force Base, previously Peterson Air Force Base, Peterson Field, and Army Air Base, Colorado Springs, is a United States Space Force base that shares an airfield with the adjacent Colorado Springs Municipal Airport and is home to ...
, Colorado. It is also listed as a partner of the NASA Orbital Debris Program Office and works with the
Missile Defense Agency The Missile Defense Agency (MDA) is a component of the Federal government of the United States, United States government's United States Department of Defense, Department of Defense responsible for developing a comprehensive Missile defense, defe ...
, under the control of the 21st Operations Group. The Cobra Dane radar has been upgraded to be integrated in the Missile Defense Agency's (MDA) Ballistic Missile Defense System (BMDS). The improvement includes midcourse BMDS sensor coverage by providing acquisition, tracking, object classification, and data that can be used for cueing, launch of interceptor missiles, and course updates of interceptors while retaining the site's legacy intelligence and space track missions. The Space Force maintains responsibility for the Cobra Dane radar operations, maintenance, and sustainment.


Technical specifications

*Traveling wave tube l-fed phased-array, all-weather, long-range radar *Provides midcourse coverage for the Ballistic Missile Defense System. Detects sea-launched or intercontinental ballistic missiles; Classifies reentry vehicles and other missile objects. Provides real-time information to Fire Control. *Provides tracking of threat ballistic missiles sufficiently accurate to commit the launch of interceptors and to update the target tracks to the interceptor while the interceptor is in flight *Has one radar face providing 136° of azimuth coverage. The radar face is approximately 95 feet in diameter; overall radar height is 120 feet. Detects objects out to 2000 miles. It operates in the L-band frequency.https://www.mda.mil/global/documents/pdf/cobradane.pdf


See also

* Cobra Ball * Cobra Eye * AN/SPQ-11 Cobra Judy * PAVE PAWS * BMEWS *
Eareckson Eareckson Air Station , formerly Shemya Air Force Base, is a United States Air Force military airport located on the island of Shemya, in the Alaskan Aleutian Islands. The airport was closed as an active Air Force Station on 1 July 1994. However, ...
Air Station, Shemya island,
Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
*Specific US radar and locations ** Thule Air Base,
Greenland Greenland is an autonomous territory in the Danish Realm, Kingdom of Denmark. It is by far the largest geographically of three constituent parts of the kingdom; the other two are metropolitan Denmark and the Faroe Islands. Citizens of Greenlan ...
** Clear Space Force Station,
Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
** RAF Fylingdales,
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
**
Cape Cod Space 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 ...
,
Massachusetts Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
**
Beale Air Force Base Beale Air Force Base (AFB) is a United States Air Force base in Yuba County, California, Yuba County, California. It is outside Linda, California, Linda, about east of the towns of Marysville, California, Marysville and Yuba City, and abo ...
,
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
** Cavalier Air Force Station,
North Dakota North Dakota ( ) is a U.S. state in the Upper Midwest, named after the indigenous Dakota people, Dakota and Sioux peoples. It is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north and by the U.S. states of Minneso ...
* List of radars * List of military electronics of the United States


References


External links


National Security Space Roadmap COBRA DANE Overview



Raytheon
– Upgrades, etc.
Space Surveillance Sensors: The Cobra Dane Radar
Article at the Mostlymissiledefence Blog. {{DEFAULTSORT:Cobra Dane 1977 establishments in Alaska Buildings and structures in Aleutians West Census Area, Alaska Cobra radars Ground radars United States Space Surveillance Network Equipment of the United States Space Force Military equipment introduced in the 1970s Military electronics of the United States