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<正>由嫦娥二号卫星拍摄的分辨率达到米级的月面虹湾局部影像图11月8日精彩亮相。该影像图的传回标志着嫦娥二号任务所确定的工程目标全部实现,科学目标也正在陆续实现,探月工程二 相似文献
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据国防科工局消息,11月28日,探月工程三期再入返回飞行试验器服务舱飞抵地月系统拉格朗日L2点,实施了地月L2点绕飞期间第一次轨道维持控制。在完成地月L2点探测活动后,服务舱将返回月球并进入环月轨道开展后续拓展试验项目。 相似文献
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2014年10月24日,我国探月工程三期再入返回飞行试验器——“嫦娥”5号试验器成功发射升空,大家都亲切叫它“小飞”。其主要目的是突破和掌握探月航天器再入返回的关键技术,为嫦娥五号月球采样返回任务提供技术支持。11月1日,“小飞”的返回器在内蒙古四子王旗预定区域顺利着陆,标志着我国探月工程三期首次再人返回飞行试验任务实现了“准时发射、精确入轨,可靠飞行、精准回收”的目标。 相似文献
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2008年,无疑是个航天大年,在这一年,印度所进行的探月活动是仅次于中国的神七出舱活动的大事件:2008年10月22日,也就是在中国“嫦娥一号”完成全月图的拍摄后,印度将一颗名为“月船一号”的探测器发射升空,随后在2008年11月14日晚,“月船一号”释放了一颗月球探测器成功撞击月球表面。 相似文献
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北京时间2010年10月1日18时59分57秒,长征三号丙火箭在西昌卫星发射中心顺利点火升空,将中国探月工程二期的先导星——嫦娥二号卫星准确送入地月转移轨道。嫦 相似文献
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《Space Policy》2014,30(3):156-162
The development of the Global Exploration Roadmap (GER) by 12 space agencies participating in the International Space Exploration Coordination Group broadly outlines a pathway to send humans beyond low Earth orbit for the first time since Apollo. Three themes have emerged: Exploration of a Near-Earth Asteroid, Extended Duration Crew Missions, and Humans to the Lunar Surface. The lack of detail within each of these themes could mean that realizing the goals of the GER would be significantly delayed. The purpose of this paper is to demonstrate that many of the details needed to fully define and evaluate these themes in terms of scientific rationale, economic viability, and technical feasibility already exist and need to be mapped to the GER. Here, we use the Humans to the Lunar Surface theme as an example to illustrate how this process could work. By mapping documents from a variety of international stakeholders, this process can be used to cement buy-in from the current partners and attract new ones to this effort. 相似文献
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《Space Policy》2014,30(3):170-173
The Global Exploration Roadmap (GER) is driven by several goals and objectives that include space science, the search for life as well as preparatory science activities to enable human space exploration. The Committee on Space Research (COSPAR), through its Commissions and Panels provides an international forum that supports and promotes space exploration worldwide. COSPAR's Panel on Exploration (PEX) investigates a stepwise approach of preparatory research on Earth and in Low Earth Orbit (LEO) to facilitate a future global space exploration program. We summarize recent activities and workshops of PEX in support of the GER. 相似文献
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紫外月球敏感器的几个关键问题 总被引:5,自引:1,他引:5
论述了紫外月球敏感器的由来和功能,从基本原理、消杂光设计、能量 与孔径选择、月像处理和姿态提取算法、超大视场消杂光等关键问题的解决进行 了阐述,并得出结论。 相似文献
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The envisaged future space research programmes, whether in the field of space exploration or Earth observation are becoming more and more technically complicated and so costly that a single nation can hardly afford to realize them. Major non-European space-faring nations, China and India will progressively play an important role besides US, Russia and Japan. The Space Advisory Group of the European Commission recommended that the European Commission supports within Horizon 2020 a comprehensive Robotic Mars-Exploration Programme under European leadership that should become an essential element of a coordinated international space research programme. The International Space Station (ISS) experience shows that cooperative space programmes build links between industries and laboratories from around the world, which then further develop in non-space related activities, with positive impact on the economy and scientific research. Strategies need to be developed to mitigate the gradual increasing risks incurred by climate change. In order to lower their entry barrier to engage in space emerging and developing space nations need to be included in cooperative space programmes. We present the recommendations of the Space Advisory Group of the European Commission concerning Europe's participation to global space endeavours. 相似文献
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基于用高频靶标法测试调制传递函数(MTF)时不能准确地体现出CCD器件的平均采样的情况。该文探讨用低频靶标法测试MTF,介绍它的原理;通过数字仿真CCD的光学镜头的模糊和采样平均过程,分析不同频率靶标的MTF测试结果,并分析相位造成的影响。 相似文献
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面向浅层月壤的小型取样器研究 总被引:2,自引:0,他引:2
面向浅层月壤取样,设计一种重量轻、功耗低、收缩体积小的卷簧式可伸缩月壤取样器,分别给出取样臂的静力学和动力学模型,并进行有限元分析,研究取样臂几何参数对其最大推力的影响,给出最大推力的数学估计公式,研究取样臂为不同长度时取样器的振动模态,得出取样器谐振频率与取样臂长度呈幂函数关系。实验证明取样器能够在模拟月壤、水泥及黄沙样品表面以下10cm内定量取样,取样器在有、无振动时取样的比较实验表明振动法能够有效提高钻进效率、钻进深度和样品抛丢效率。理论分析、仿真及实验验证了取样器设计的合理性及振动法取样的有效性。 相似文献