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Table Mountain Observatory : ウィキペディア英語版 | Table Mountain Observatory
Table Mountain Observatory (TMO) is an astronomical observation facility operated by NASA's Jet Propulsion Laboratory (California Institute of Technology). It is located in Angeles National Forest near Wrightwood, California.〔 Located north-northeast of Los Angeles, TMO is part of JPL's Table Mountain Facility (TMF). The larger site hosts a number of non-astronomical projects. The site was first used by the Smithsonian Institution in 1924, which conducted atmospheric, solar, and astronomical observations for many years. JPL took over the lease in 1962.〔 TMO conducts high-precision astrometric observations to support NASA and international spacecraft mission navigation, confirmation and recovery of Near-Earth objects such as comets and asteroids that may potentially impact the Earth, and technology development.〔 ==Instruments==
* The Pomona College Telescope is a Cassegrain reflector built at Pomona College. It first became operation in 1985, and had new mirrors installed in 1996.〔〔 * A 0.6 m Ritchey-Chrétien reflector built by Astro Mechanics was installed in 1966. It is attached to an off-axis German equatorial mount.〔
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