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继“斯波特”(SPOT)系列卫星之后,法国自2001年开始着手研制下一代具有更高分辨率的“昴宿星”(Pleiades)军民两用光学成像卫星,以应对国际卫星遥感数据市场的发展,满足民用及国防对地球观测卫星的需求。Pleiades卫星星座由法国国家航天研究中心(CNES)负责研制,包括2颗卫星。由于种种原因,卫星发射日期却一推再推。2颗Pleiades卫星曾计划分别于2009年和2010年发射,后推迟至2010年和2011年。目前,首颗卫星的发射时间定在2011年年底。
Following the launch of the SPOT series of satellites, France has been working on the next generation of the Pleiades military and civilian dual-use optical imaging satellite with higher resolution since 2001, in response to international The development of the market for satellite remote sensing data meets the needs of civilian and national defense satellites for Earth observation. Pleiades satellite constellation by the French National Space Research Center (CNES) is responsible for the development, including two satellites. Due to various reasons, the launch date of the satellite has been pushed again. Two Pleiades satellites were planned to be launched in 2009 and 2010 respectively and postponed until 2010 and 2011. At present, the launch time of the first satellite is scheduled for the end of 2011.