The 3.67-meter telescope, known as the Advanced Electro-Optical System (AEOS), owned by the Department of Defense, is the United States' largest optical telescope designed for tracking satellites. AEOS can be used simultaneously by many groups or institutions because its light can be channeled through a series of mirrors to seven independent rooms below the telescope. Employing sophisticated sensors that include an adaptive optics system, radiometer, spectrograph, and long-wave infrared imager, the telescope tracks man-made objects in deep space and performs space object identification data collection. (U.S. Air Force photo/Tech. Sgt. Bennie J. Davis III)
14.0-24.0 mm f/2.8
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