Concept

CORONA (satellite)

Summary
The Corona program was a series of American strategic reconnaissance satellites produced and operated by the Central Intelligence Agency (CIA) Directorate of Science & Technology with substantial assistance from the U.S. Air Force. The CORONA satellites were used for photographic surveillance of the Soviet Union (USSR), China, and other areas beginning in June 1959 and ending in May 1972. In 1957, the Soviet Union launched Sputnik 1, the first artificial Earth satellite. Officially, Sputnik was launched to correspond with the International Geophysical Year, a solar period that the International Council of Scientific Unions declared would be ideal for the launching of artificial satellites to study Earth and the solar system. However, the launch led to public concern about the perceived technological gap between the West and the Soviet Union. The unanticipated success of the mission precipitated the Sputnik Crisis, and prompted President Dwight D. Eisenhower to authorize the Corona program, a top priority reconnaissance program managed jointly by the Air Force and the CIA. Satellites were developed to photograph denied areas from space, provide information about Soviet missile capability and replace risky U-2 reconnaissance flights over Soviet territory. CORONA started under the name "Discoverer" as part of the WS-117L satellite reconnaissance and protection program of the U.S. Air Force in 1956. The WS-117L was based on recommendations and designs from the RAND Corporation. The primary goal of the program was to develop a film-return photographic satellite to replace the U-2 spyplane in surveilling the Sino-Soviet Bloc, determining the disposition and speed of production of Soviet missiles and long-range bombers assets. The CORONA program was also used to produce maps and charts for the Department of Defense and other U.S. government mapping programs. The CORONA project was pushed forward rapidly following the shooting down of a U-2 spy plane over the Soviet Union on 1 May 1960.
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