Declass 3 (2013) = USGS Subset of Hexagon Missions - KH-9: 1971 - 1984

• Main Author: U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center
• Format: Dataset
• Language: unknown
• Published: USGS Science Data Catalog 2016
• Subjects: Infrared Imagery; Satellite; Photo-Reconnaissance; Photography; Panoramic Camera; Cartographic Camera; Photographs; U.S. Geological Survey (USGS); Environmental; Declassified; Earth Resources Observation and Science (EROS) Center; Imagery; Visible Imagery; Visible Wavelengths; Infrared Wavelengths; Arctic; Eros; Keyhole; The Keyhole; Antarc*; Antarctica; Climate change
• Online Access: https://search.dataone.org/view/50b24bc8-928a-4cae-9b48-e324348b3c62

Keyhole (KH) satellite systems- KH-9 acquired photographs of the Earth's surface with a telescopic camera system and transported the exposed film through the use of recovery capsules. The capsules or buckets were de-orbited and retrieved by aircraft while the capsules parachuted to earth. The e...