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[i]It is believed to resemble the Hubble Space Telescope in size and shape, as the satellites were shipped in similar containers. Furthermore, a NASA history of the Hubble, in discussing the reasons for switching from a 3-meter main mirror to a 2.4-meter design, states: "In addition, changing to a 2.4-meter mirror would lessen fabrication costs by using manufacturing technologies developed for military spy satellites." A CIA history states that the primary mirror on the first KH-11s measured 2.34 meters, but sizes increased in later versions. NRO led the development of a computer controlled mirror polishing technique, which was subsequently also used for the polishing of the primary mirror of the Hubble Space Telescope.[/i]
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