1/25/2024 0 Comments Image bucket coronaDuplicate film sources held in the USGS EROS Center archive are used to produce digital copies of the imagery. The original film and technical mission-related documents are maintained by the National Archives and Records Administration (NARA). Early systems (KH-1, KH-2, KH-3, and KH-6) carried a single panoramic camera or a single frame camera (KH-5). The later systems (KH-4, KH-4A, and KH-4B) carried two panoramic cameras with a separation angle of 30° with one camera looking forward and the other looking aft. Mission numbers were a means for indexing the imagery and associated collateral data.Ī variety of camera systems were used with the satellites. The CORONA systems were designated KH-1, KH-2, KH-3, KH-4, KH-4A, and KH-4B. The ARGON systems used the designator KH-5 and the LANYARD systems used KH-6. The intelligence community used Keyhole (KH) designators to describe system characteristics and accomplishments. The exposed film was developed and the images were analyzed for a range of military applications. The capsules or buckets were de-orbited and retrieved by aircraft while the capsules parachuted to earth. The satellite acquired photographs with a telescopic camera system and loaded the exposed film into recovery capsules. The first successful CORONA mission was launched from Vandenberg Air Force Base in 1960. Since the CORONA, ARGON, and LANYARD data were no longer critical to national security and could be of historical value for global change research, the images were declassified by Executive Order 12951 in 1995. In 1992, an Environmental Task Force evaluated the application of early satellite data for environmental studies. The images were originally used for reconnaissance and to produce maps for U.S. The classified military satellite systems code-named CORONA, ARGON, and LANYARD acquired photographic images from space and returned the film to Earth for processing and analysis. photo intelligence satellites collected more than 860,000 images of the Earth’s surface between 19. A section of KH-7 imagery showing the western edge of Dakar, Senegal, Africa (1966)(Public domain)
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