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The idea that the Casa Grande range was developed for the CORONA program is asinine when looking at the timelines of range construction, stories about the range’s purpose twice posted on the front page of a local newspaper, the government photogrammetry description, and the technical aspects of what
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When completed, the Casa Grande test range will consist of 273 points positioned horizontally and vertically by precision survey methods. Each point will be elaborately paneled, and all points will be located according to an orderly arrangement within a 16-mile square area.” (Emphasis
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the
National Reconnaissance Program photographic satellites required for calibration. The use of satellites for reconnaissance and surveillance ostensibly remained close hold until the declassification of the NRO in 1992 and the release of CORONA programmatic information in 1995.
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And to hammer home the linkage to aerial photogrammetry, I found this description from John O. Phillips the Chief of the
Geodesy Division, Coast and Geodetic Survey, circa 1966:
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The Casa Grande was designed to be a superaccurate range for use in dynamic calibration of aerial cameras.
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It seems these test targets had nothing to do with the CORONA
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