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The author:(作者)qqpublished in(发表于) 2013/11/27 9:14:20 Chang-seven major difficulties facing the third landing， only US-Soviet sow
Original title: Chang faced seven third landing difficulties could break the US-Soviet double BA
National Defense Science and technology industry Council meeting on 26th lunar phase II Tower ", third" Mission Press Conference on "Chang-third" task-related situations. Defense Science and Industry Council spokesman introduction Ng Chee-kin, if the meteorological conditions and take up the "Moon" task of "Chang-third" will be launched in early December this year snagged. Benjamin l. Liebman is Vice Director of lunar exploration program announced at the press conference, China's first moon car-"Chang-third" patrol (Rovers) levy on conclusion of the event worldwide and was eventually named "rabbit".
It is understood that China's lunar exploration program planned for "around, down, back three-period". Lunar phase of the task was implemented around the Moon probing. "The moon lady, first" satellite was launched on October 24, 2007, effective detection 16 months on orbit, successfully controlled crash months in March 2009, China's indigenous satellite into lunar orbit and get a one-month figure. Lunar phase II's mission is to achieve a lunar soft landing and automatic inspection survey, including Tower "second", "Goddess the third", "Chang-fourth" (backup) 3 missions. Led Star Tower ", second" was launched on October 1, 2010, to Tower ", third" verify some of the key technologies and pre-screened for focus detection area of the moon.
Introduction Ng Chee-kin, "said Chang, third" task as the lunar phase ⅱ primary task will complete three major engineering goals and three types of scientific exploration tasks. Three big engineering target including: breakthrough months surface landing, and months surface visits survey, and deep empty measurement and control communications and away operation, and deep empty detection rocket launches, key technology, upgrade aerospace technology; development months surface landing detector and visits detector, established ground deep empty station, obtained including rocket, and moon detector, and launch site, and deep empty measurement and control station, and ground application, zainei of features module, has months surface landing detection of basic capacity; established Moon detection aerospace engineering basic system, A major scientific and effective engineering approach of project implementation. Three types of scientific exploration tasks: the Moon's surface topography and geological structure survey; surface material composition and the resources available to investigate; plasma layer detection and Earth month-based optical Astronomy Observatory.
Li Benzheng, at present, the global total of 129 lunar exploration activities were conducted, which succeed or succeeded 66 times, falling 63 times, the success rate is only 51%. Only a US-Soviet unmanned soft landing on the surface of the Moon successfully implemented 13 times; only the United States achieve a manned moon landing, the Soviet Union held two months of unmanned patrol missions. "The moon lady, third" faces seven major difficulties: experimental verification on the ground, multiple Windows, width of time launch, Lunar soft landing, two players separation, months and teleoperation, lunar surface survival, tracking telemetry command and communication, and so on. (Zhang Xiang)
原标题：嫦娥三号登陆面临七大难点 能否打破美苏双霸
国家国防科技工业局26日召开探月工程二期“嫦娥三号”任务新闻发布会，介绍“嫦娥三号”任务相关情况。国防科工局新闻发言人吴志坚介绍，如果气象等条件具备，肩负“落月”重任的“嫦娥三号”将于今年12月上旬择机发射。探月工程副总指挥李本正在发布会上宣布，中国首辆月球车——“嫦娥三号”巡视器(月球车)全球征名活动结束，最终被命名为“玉兔”号。
据了解，中国探月工程规划为“绕、落、回”三期。探月工程一期的任务是实现环绕月球探测。“嫦娥一号”卫星于2007年10月24日发射，在轨有效探测16个月，于2009年3月成功受控撞月，实现中国自主研制的卫星进入月球轨道并获得全月图。探月工程二期的任务是实现月面软着陆和自动巡视勘察，包括“嫦娥二号”、“嫦娥三号”、“嫦娥四号”(备份)3次任务。先导星“嫦娥二号”于2010年10月1日发射，为“嫦娥三号”验证了部分关键技术，并对预选的落月区域进行重点探测。
吴志坚介绍称，“嫦娥三号”任务作为探月工程二期主任务，将完成三大工程目标和三类科学探测任务。三大工程目标包括：突破月面软着陆、月面巡视勘察、深空测控通信与遥操作、深空探测运载火箭发射等关键技术，提升航天技术水平;研制月面软着陆探测器和巡视探测器，建立地面深空站，获得包括运载火箭、月球探测器、发射场、深空测控站、地面应用等在内的功能模块，具备月面软着陆探测的基本能力;建立月球探测航天工程基本体系，形成重大项目实施的科学有效的工程方法。三类科学探测任务：月表形貌与地质构造调查;月表物质成分和可利用资源调查;地球等离子体层探测和月基光学天文观测。
李本正称，目前，全球共进行了129次月球探测活动，其中成功或基本成功66次，失败63次，成功率仅有51%。仅有美苏成功实施13次无人月球表面软着陆;只有美国实现了载人登月，苏联开展了两次月面无人巡视探测任务。“嫦娥三号”面临七大难点：地面试验验证，多窗口、宽窄度准时发射，月面软着陆，两器分离，月地间遥操作，月面生存，测控通信等。 (张祥)
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