基于batc 1999-2008十年观测值班记录的兴隆天气情况统计（Statistics of booming weather conditions based on batc 1999-2008 and ten year observation of duty record）.doc

基于batc 1999-2008十年观测值班记录的兴隆天气情况统计（Statistics of booming weather conditions based on batc 1999-2008 and ten year observation of duty record） Statistics of booming weather conditions based on BATC 1999-2008 and ten year observation of duty record Zhang Wei, Zhou Xu, Jiang Zhaoji, Ma Jun, Wu Jianghua, Wu Zhenyu, Li Qisheng (National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012) Biography: Zhang Wei, male, Ph. D., research interests: formation and evolution of galaxies Abstract: the observation of nearly ten years of the BATC survey group records based on the statistics of XINLUNG station observation time with monthly changes, results show that there are about 195 observable night per year (about 1986 hours), of which about 87 observation nights (about 918 hours) to survey, there are about 18 observations night to light. In addition, the statistics of XINLUNG station Schmidt telescope ten years observation area as the polar star image full width at half maximum (FWHM) with monthly changes, results show that within a year the average star like full width half maximum is about 2.3 pixels (old CCD) or 2.2 pixels (New CCD). Generally speaking, summer stars are better than winter, which is basically consistent with the results of [2] in 2003 by Liu Ying and others (Liu). Keywords: Observatory; astronomical observation; weather quality CLC number: P 113, document identification code: A, article number: XXX 1 Overview China Academy of Sciences and the National Observatory XINLUNG station was built in 1968, is located in the prosperous county of Hebei Province, the Yanshan mountains, northeast in Beijing, east longitude 117.5 degrees, 40.4 degrees north latitude, 960 meters above sea level, 110 kilometers away from Beijing straight away. The national major science XINLUNG station is 2.16 meters, 1.26 meters optical telescope infrared telescope, 60/90 cm, 85 cm Schmidt telescope reflecting telescope, 80 cm, 60 cm reflector telescope reflecting telescop