RECONNAISSANCE SATELLITES
KH-11
The KH-11 KENNAN is a type of reconnaissance satellite launched by the American National Reconnaissance Office since December 1976. Manufactured by Lockheed in Sunnyvale, California, the KH-11 was the first American spy satellite to utilize electro-optical digital imaging, and create a real-time optical observation capability.
Current model satellites include signals intelligence capabilities and greater sensitivity in broader light spectrums (probably into infrared). These satellites also havelarger mirrors, with a diameter of around 2.9–3.1 m. The secondary mirror in the Cassegrain reflecting telescope system can also be moved, allowing images to be taken from angles unusual for a satellite. These satellites also can take images every five seconds.
Current model satellites include signals intelligence capabilities and greater sensitivity in broader light spectrums (probably into infrared). These satellites also havelarger mirrors, with a diameter of around 2.9–3.1 m. The secondary mirror in the Cassegrain reflecting telescope system can also be moved, allowing images to be taken from angles unusual for a satellite. These satellites also can take images every five seconds.