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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Lincoln Near-Earth Asteroid Research ： ウィキペディア英語版 Lincoln Near-Earth Asteroid Research The Lincoln Near-Earth Asteroid Research (LINEAR) project is a collaboration of the United States Air Force, NASA, and the MIT's Lincoln Laboratory for the systematic discovery and tracking of near-Earth asteroids. LINEAR was responsible for the majority of asteroid detections from 1998 until it was overtaken by the Catalina Sky Survey in 2005.〔 , LINEAR had detected 231,082 new objects, of which at least 2,423 were near-Earth asteroids and 279 were comets.〔 The instruments used by the LINEAR program are located at the Lincoln Laboratory's site on the White Sands Missile Range (WSMR) near Socorro, New Mexico. ==History== In the late 1970s, a prototype called the Lincoln Laboratory Experimental Test System (ETS) (MPC code 704) was built at WSMR.〔 The project used low-light video cameras.〔 In 1994 a new proposal was made for automated detection of asteroids, this time using newer digital detector technology.〔 The LINEAR project began operating a near-Earth object (NEO) discovery facility in 1996 using a aperture telescope designed for the Air Force Space Command's Ground-based Electro-Optical Deep Space Surveillance (GEODSS). The wide-field Air Force telescopes were designed for optical observation of Earth-orbiting spacecraft. Initial field tests used a 1024 × 1024 pixel charge-coupled device (CCD) detector. While this CCD detector filled only about one fifth of the telescope's field of view, four near-earth objects were discovered. A 1960 × 2560 pixel CCD which covered the telescope's two-square degree field of view was then installed, and both detectors were used in later tests.〔 The first LINEAR telescope became fully operational in March 1998.〔 Beginning in October 1999, a second 1.0 m telescope was added to the search effort.〔 In 2002, a telescope equipped with the original CCD was brought on-line to provide follow-up observations for the discoveries made by the two search telescopes.〔 This allowed about 20% more of the sky to be searched each night. Data recorded by the telescopes is sent to a Lincoln Laboratory facility at Hanscom Air Force Base in Lexington, Massachusetts for processing. Detections are then forwarded to the Minor Planet Center.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lincoln Near-Earth Asteroid Research」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.