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

Metadata Updated: October 26, 2018

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 exposed film was developed and the images were analyzed for a range military applications. The Keyhole (KH) satellite system KH-9 (Hexagon) operated between 1971 and 1984. The imagery generated are of historical interest and expected to support current scientific research on climate change and related fields of inquiry. Almost all of the imagery from this camera was declassified in 2012 as a continuation of Executive Order 12951, the same order that declassified CORONA. A subset of this declassified data was transferred to the U.S. Geological Survey's Earth Resources Observation and Science (EROS) Center. Please check the coverage map in EarthExplorer to verify the extent of coverage for the subset of images available from EROS. The Available images are primarily over the United States, Antarctica, and the Arctic Circle. The KH-9 program was designed to support mapping requirement and exact positioning of geographical points for the military. The KH-9 panoramic cameras captured high resolution (2-4 feet) images and the terrain camera captured high resolution (2-4 feet) images and the terrain camera captured moderate resolution (20-30 feet) images. High resolution images were acquired on 6.5 inch wide variable length film. The moderate resolution terrain camera acquired images that were printed to 9 inch wide variable length film. The digital products are produced from a duplicate positive film source. The use of browse imagery provides an opportunity to determine if the area of interest is covered and to check for cloud cover. The original film sources are maintained by the ( National Archives and Records Administration (NARA).

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Date December 28, 2017
Metadata Created Date October 26, 2018
Metadata Updated Date October 26, 2018
Reference Date(s) December 28, 2017 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from DOI CKAN Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date December 28, 2017
Metadata Created Date October 26, 2018
Metadata Updated Date October 26, 2018
Reference Date(s) December 28, 2017 (publication)
Responsible Party U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center (Point of Contact)
Contact Email
Access Constraints Use Constraints: There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were proved or endorsed by the U.S. Geological Survey. Please refer to for the USGS disclaimer., Access Constraints: Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the USGS Standard Disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and USGS interests.
Bbox East Long 179.3
Bbox North Lat 83.2
Bbox South Lat -84
Bbox West Long -179
Coupled Resource
Frequency Of Update asNeeded
Harvest Object Id 6143f75b-4569-4063-9dcf-172a91b55331
Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Licence Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied, is made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester true

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