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Mapping of the lunar surface by average atomic number based on positron annihilation radiation from Chang'e-1 被引量:1
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作者 LiangQuan Ge JianKun Zhao +2 位作者 QingXian Zhang YaoYao Luo Yi Gu 《Earth and Planetary Physics》 2018年第3期238-246,共9页
A map of the average atomic number of lunar rock and soil can be used to differentiate lithology and soil type on the lunar surface.This paper establishes a linear relationship between the average atomic number of lun... A map of the average atomic number of lunar rock and soil can be used to differentiate lithology and soil type on the lunar surface.This paper establishes a linear relationship between the average atomic number of lunar rock or soil and the flux of position annihilation radiation(0.512-Me V gamma-ray) from the lunar surface.The relationship is confirmed by Monte Carlo simulation with data from lunar rock or soil samples collected by Luna(Russia) and Apollo(USA) missions.A map of the average atomic number of the lunar rock and soil on the lunar surface has been derived from the Gamma-Ray Spectrometer data collected by Chang'e-1,an unmanned Chinese lunar-orbiting spacecraft.In the map,the higher average atomic numbers(ZA > 12.5),which are related to different types of basalt,are in the maria region;the highest ZA(13.2) readings are associated with Sinus Aestuum.The middle ZA(~12.1) regions,in the shape of irregular oval rings,are in West Oceanus Procellarum and Mare Frigoris,which seems to be consistent with the distribution of potassium,rare earth elements,and phosphorus as a unique feature on the lunar surface.The lower average atomic numbers(ZA < 11.5)are found to be correlated with the anorthosite on the far side of the Moon. 展开更多
关键词 AVERAGE atomic number lunar rock and soil POSITRON ANNIHILATION RADIATION Monte Carlo simulation change-1 GAMMA-RAY spectrometer
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Latest Scientific Results of China's Lunar and Deep Space Exploration(2022–2024)
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作者 XU Lin LI Lei +8 位作者 LIU Jianzhong LIN Honglei LI Yang LIU Yang XIE Lianghai ZHANG Jinhai QIAO Fuhao HAN Juanjuan ZOU Yongliao 《空间科学学报》 CAS CSCD 北大核心 2024年第4期622-632,共11页
China has successfully launched six lunar probes so far.From Chang'E-1 to Chang'E-4,they completed the circling,landing and roving exploration,of which Chang'E-4 was the first landing on the far side of th... China has successfully launched six lunar probes so far.From Chang'E-1 to Chang'E-4,they completed the circling,landing and roving exploration,of which Chang'E-4 was the first landing on the far side of the Moon in human history.Chang'E-5 was launched in December 2020,bringing back 1731 g of lunar soil samples.Through the detailed analysis of the samples,the scientists understand the history of late lunar volcanism,specifically extending lunar volcanism by about 800 million to 1 billion years,and proposed possible mechanisms.In addition,there are many new understandings of space weathering such as meteorite impacts and solar wind radiation on the Moon.China's first Mars exploration mission Tianwen-1 was successfully launched in July 2021.Through the study of scientific data,a number of important scientific achievements have been made in the topography,water environment and shallow surface structure of Mars.This paper introduces the main scientific achievements of Chang'E-4,Chang'E-5 and Tianwen-1 in the past two years,excluding technical and engineering contents.Due to the large number of articles involved,this paper only introduces part of the results. 展开更多
关键词 lunar and deep space exploration of China change-4 mission change-5 mission Tianwen-1 mission
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The Chang’E-1 orbiter plays a distinctive role in China’s first successful selenodetic lunar mission 被引量:4
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作者 PING JinSong SU XiaoLi +1 位作者 HUANG Qian YAN JianGuo 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2011年第12期2130-2144,共15页
The first Chinese lunar orbiter Chang'E-1 is a successful mission with many fruitful results obtained in various disciplines. The scientific data acquired by the Chang'E-1 payloads can benefit studies of the l... The first Chinese lunar orbiter Chang'E-1 is a successful mission with many fruitful results obtained in various disciplines. The scientific data acquired by the Chang'E-1 payloads can benefit studies of the lunar origin and evolution, as well as other relevant research areas, after careful validation of the data. Among the new results, the Chang'E-1 selenodetic products are continually uncovering characteristics of the lunar surface, undersurface and inner structure. Successful lunar orbiters such as the Clementine, Lunar Prospector, KAGUYA/SELENE, Chang'E-1, Lunar Reconnaissance Orbiter and GRAIL have been revealing, with increasing clarity, global selenodetic characteristics with state-of-the-art fine resolution and high precision. In particular, the Chang'E-1 plays an important distinctive role in selenodetic exploration through enhancing lunar topography and gravity models. The gravity model has been successfully improved with a factor of two after applying the Chang'E-1 long-wavelength tracking data. Using the new models, some medium-scale lunar surface characteristics such as basins and volcanoes have been identified. Furthermore, the old mascon basins of Bouguer, gravity anomaly and craters have been discovered with the Chang'E-1 selenodetic data. 展开更多
关键词 change-1 lunar orbiter lunar science selenodesy TOPOGRAPHY GRAVITY
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Inversion of the Main Mineral Compositions and Subdivision of Tectonic Units on Lunar LQ-4 based on Chang'e Data 被引量:1
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作者 WANG Xiang CHEN Jianping +3 位作者 XU Yanbo ZHENG Yongchun YAN Bokun WU Yunzhao 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2015年第6期1882-1894,共13页
Spectra are sensitive in detecting main minerals on the lunar surface from visible light to infrared light. Since spectral characteristics of minerals are closely related to their compositions and the maturity level o... Spectra are sensitive in detecting main minerals on the lunar surface from visible light to infrared light. Since spectral characteristics of minerals are closely related to their compositions and the maturity level of soil on the Moon, studying the compositions and distribution of elements and minerals on the lunar surface can help to understand the evolution of the Moon through remote sensing technology. The correlation between the spectral characteristics of Chang'e-1 interference imaging spectrometry(IIM) reflectance images and the mineral contents of LSCC(Lunar Soil Characterization Consortium) lunar surface mineral samples was discussed and the spatial distributions of Fe O and Al_2O_3 contained in both pyroxene and plagioclase on LQ-4 were studied using the improved angle parameter method, MNF, and band ratio statistics. A comparison of the mapping results of the optical models by Lucey, Shkuractov and other researchers on Clementine and the gamma ray spectrometry data shows that the content error is within 0.6% for lunar mare areas and close to 1% for the highland areas. The tectonic framework on the lunar surface was also investigated. And based on integrated analysis of previous findings on topography of the lunar surface, Chang'e LAM, CCD and LOLA images and the gravity anomalies data(Clementine GLGM-2), the tectonic unit subdivision was established for LQ-4, the idea of subdividing the lunar tectonic units was proposed, and this will provide a good foundation for studying the lunar tectonic evolution. 展开更多
关键词 lunar chang'e-1 mineral composition MNF tectonic units tectonic elements
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The global image of the Moon obtained by the Chang'E-1:Data processing and lunar cartography 被引量:23
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作者 LI ChunLai1, LIU JianJun1, REN Xin1, MOU LingLi1, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAO BaoChang2, YANG JianFeng2, ZOU XiaoDuan1, WANG Min1, XU Chun1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, LI JunDuo1 & OUYANG ZiYuan11 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China 《Science China Earth Sciences》 SCIE EI CAS 2010年第8期1091-1102,共12页
The global lunar image of the first phase of Chinese Lunar Exploration Program is the first image that covered all over the surface of the Moon. It will serve as a critical foundation for succeeding exploration and sc... The global lunar image of the first phase of Chinese Lunar Exploration Program is the first image that covered all over the surface of the Moon. It will serve as a critical foundation for succeeding exploration and scientific research. In this paper, the acquisition, characteristics, and data quality of Chang'E-1 CCD image data are described in detail. Also described are the methodology and procedure of data processing. According to rule of planetary cartography, the image data have been processed, geometrically corrected, and then mosaicked and merged in a scale of 1:2.5 million. The results of data processing and charting show that the image data of Chang'E-1 CCD and their geometric precision meet the demand of charting a map in the scale of 1:2.5 million. The relative geometric positioning precision of the global image is better than 240 m, and the absolute geometric positioning precision is slightly better than that of the ULCN2005 and Clementine lunar basemap (V2.0). The plane positioning precision is approximately 100-1500 m. This global image proves to be the best global image of the Moon so far in terms of space coverage, image quality, and positioning precision. 展开更多
关键词 change-1 lunar CCD data processing lunar IMAGE POSITION lunar GLOBAL IMAGE
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Primary scientific results of Chang'E-1 lunar mission 被引量:14
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作者 OUYANG ZiYuan1,2, LI ChunLai1, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, LIU JianJun1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAO BaoChang3, WANG JianYu4, YANG JianFeng3, CHANG Jin5, WANG HuanYu6, ZHANG XiaoHui7, WANG ShiJin7, WANG Min1, REN Xin1, MU LingLi1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, ZHENG YongChun1, LI JunDuo1, ZOU XiaoDuan1, XU Chun1, SHI ShuoBiao1, GAO YiFei1 & GAO GuanNan1 1 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China +4 位作者 3 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China 4 Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China 5 Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China 6 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 7 Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China 《Science China Earth Sciences》 SCIE EI CAS 2010年第11期1565-1581,共17页
The strategic plan for the development of the unmanned Chinese Lunar Exploration Program is characterized by three distinct stages: "orbiting around", "landing on" and "returning from" th... The strategic plan for the development of the unmanned Chinese Lunar Exploration Program is characterized by three distinct stages: "orbiting around", "landing on" and "returning from" the Moon. The first Chinese lunar probe, Chang'E-1, which was successfully launched on October 24th, 2007 at Xichang Satellite Launch Center, and guided to crash on the Moon on March 1st, 2009, at 52.36°E, 1.50°S, in the north of Mare Fecunditatis, is the first step towards the "orbiting around" stage. The Chang'E-1 mission lasted 495 days, exceeding the expected life-span by about four months. A total of 1.37 TB raw data was received from Chang'E-1. It was then processed into 4 TB scientific data products at various levels. Many scientific results have been obtained by analyzing these data, including especially the "global lunar image from the first Chinese lunar explora- tion mission". All scientific goals of Chang'E-1 have been achieved. It provides much useful materials for further advances of lunar sciences and planetary chemistry. Meanwhile, these results will serve as a firm basis for future Chinese lunar missions. 展开更多
关键词 lunar orbiter change-1 SCIENTIFIC data RESULTS
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Laser altimetry data of Chang'E-1 and the global lunar DEM model 被引量:20
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作者 LI ChunLai1, REN Xin1, LIU JianJun1, ZOU XiaoDuan1, MU LingLi1, WANG JianYu2, SHU Rong2, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, WANG Min1, XU Chun1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, LI JunDuo1 & OUYANG ZiYuan1 1 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China 《Science China Earth Sciences》 SCIE EI CAS 2010年第11期1582-1593,共12页
The Laser AltiMeter (LAM), as one of the main payloads of Chang'E-1 probe, is used to measure the topography of the lunar surface. It performed the first measurement at 02:22 on November 28th, 2007. Up to December... The Laser AltiMeter (LAM), as one of the main payloads of Chang'E-1 probe, is used to measure the topography of the lunar surface. It performed the first measurement at 02:22 on November 28th, 2007. Up to December 4th 2008, the total number of measurements was approximately 9.12 million, covering the whole surface of the Moon. Using the LAM data, we constructed a global lunar Digtal Elevation Model (DEM) with 3 km spatial resolution. The model shows pronounced morphological characteristics, legible and vivid details of the lunar surface. The plane positioning accuracy of the DEM is 445 m (1σ), and the vertical accuracy is 60 m (1σ). From this DEM model, we measured the full range of the altitude difference on the lunar sur-face, which is about 19.807 km. The highest point is 10.629 km high, on a peak between crater Korolev and crater Dirichlet-Jackson at (158.656°W, 5.441°N) and the lowest point is -9.178 km in height, inside crater Antoniadi (172.413°W, 70.368°S) in the South Pole-Aitken Basin. By comparison, the DEM model of Chang'E-1 is better than the USA ULCN2005 in accuracy and resolution and is probably identical to the DEM of Japan SELENE, but the DEM of Chang'E-1 reveals a new lowest point, clearly lower than that of SELENE. 展开更多
关键词 change-1 LASER ALTIMETRY lunar DEM topographic TOPS of the MOON
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Lunar topographic model CLTM-s01 from Chang’E-1 laser altimeter 被引量:22
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作者 PING JinSong HUANG Qian +3 位作者 YAN JianGuo CAO JianFeng TANG GeShi SHU Rong 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2009年第7期1105-1114,共10页
More than 3 million range measurements from the Chang’E-1 Laser Altimeter have been used to produce a global topographic model of the Moon with improved accuracy. Our topographic model, a 360th degree and order spher... More than 3 million range measurements from the Chang’E-1 Laser Altimeter have been used to produce a global topographic model of the Moon with improved accuracy. Our topographic model, a 360th degree and order spherical harmonic expansion of the lunar radii, is designated as Chang’E-1 Lunar Topography Model s01 (CLTM-s01). This topographic field, referenced to a mean radius of 1738 km, has an absolute vertical accuracy of approximately 31 m and a spatial resolution of 0.25° (~7.5 km). This new lunar topographic model has greatly improved previous models in spatial coverage, accuracy and spatial resolution, and also shows the polar regions with the altimeter results for the first time. From CLTM-s01, the mean, equatorial, and polar radii of the Moon are 1737103, 1737646, and 1735843 m, respectively. In the lunar-fixed coordinate system, this model shows a COM/COF offset to be (?1.777, ?0.730, 0.237) km along the x, y, and z directions, respectively. All the basic lunar shape parameters derived from CLTM-s01 are in agreement with the results of Clementine GLTM2, but CLTM-s01 offers higher accuracy and reliability due to its better global samplings. 展开更多
关键词 change-1 LASER ALTIMETER (LAM) lunar topographic MODEL
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Automatic extraction of lunar impact craters from Chang'E-1 satellite photographs 被引量:8
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作者 WAN Cong CHENG WeiMing +2 位作者 ZHOU ZengPo ZHAO ShangMin XIA Yao 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2012年第1期162-169,共8页
The distribution characteristics of the impact craters can provide a large amount of information on impact history and the lunar evolution process. In this research, based on the digital elevation model (DEM) data o... The distribution characteristics of the impact craters can provide a large amount of information on impact history and the lunar evolution process. In this research, based on the digital elevation model (DEM) data originating from Change'E-1 CCD stereo camera, three automatic extraction methods for the impact craters are implemented in two research areas: direct extraction from flooded DEM data (the Flooded method), object-oriented extraction from DEM data by using ENVI ZOOM function (the Object-Oriented method) and novel object-oriented extraction from flooded DEM data (the Flooded Object-Oriented method). Accuracy assessment, extracted degree computation, cumulative frequency analysis, shape and age analysis of the extracted craters combined display the following results. (1) The Flooded Object-Oriented method yields better accuracy than the other two methods in the two research areas; the extraction result of the Flooded method offers the similar accuracy to that of the Object-Oriented method. (2) The cumulative frequency curves for the extracted craters and the confirmed craters share a simi- lar change trajectory. (3) The number of the impact craters extracted by the three methods in the Imbrian period is the largest and is of various types; as to their age earlier than lmbrain, it is difficult to extract because they could have been destroyed. 展开更多
关键词 automatic extraction lunar impact craters Object-Oriented method accuracy assessment cumulative frequencyanalysis chang'e-1 data
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Super-resolution reconstruction and higher-degree function deformation model based matching for Chang’E-1 lunar images 被引量:3
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作者 LI LiChun YU QiFeng +3 位作者 YUAN Yun SHANG Yang LU HongWei SUN XiangYi 《Science China(Technological Sciences)》 SCIE EI CAS 2009年第12期3468-3476,共9页
This article intends to solve the matching problem of 2C level lunar images by Chang’E-1(CE-1)lunar probe satellite.A line-scanner image matching method is proposed which represents deformation by the quadric functio... This article intends to solve the matching problem of 2C level lunar images by Chang’E-1(CE-1)lunar probe satellite.A line-scanner image matching method is proposed which represents deformation by the quadric function along the camera motion direction and bases on the deformation model for a relief terrain’s imaging on sensors of the satellite borne three-line scanner camera.A precise matching is carried out for the normal view,the frontward view,and the backward view images of the CE-1 by combining the proposed method with the standard correlation method.A super-resolution(SR)reconstruction algorithm based on the wavelet interpolation of non-uniformly sampled data is also adopted to realize SR reconstruction of CE-1 lunar images,which adds the recognizable targets and explores CE-1 lunar images to the full. 展开更多
关键词 IMAGE MATCHING 3-line-scanner quadric FUNCTION DEFORMATION super resolution change-1 lunar IMAGE
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Preface: Joint researches are benefiting the Chang’E-1 comprehensive lunar scientific studies which probe ever deeper 被引量:1
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作者 ZhiYong Xiao ZuoXun Zeng +2 位作者 Long Xiao WenZhe Fa Qian Huang 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2010年第12期2135-2135,共1页
PrefacePreface: Joint researches are benefiting the Chang’E-1 comprehensive lunar scientific studies which probe ever deeper
关键词 IIM VLBI e-1 comprehensive lunar scientific studies which probe ever deeper Joint researches are benefiting the chang PREFACE
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Triaxial ellipsoid models of the Moon based on the laser altimetry data of Chang'E-1 被引量:2
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作者 WANG WenRui1,2,3, LI Fei1, LIU JianJun1, REN Xin2, ZOU XiaoDuan2,3, MU LingLi2, YAN JianGuo1, ZOU YongLiao2, ZHANG HongBo2, Lü Chang2, LIU JianZhong2, ZUO Wei2, SU Yan2, WEN WeiBin2, BIAN Wei2, WANG Min2, LI ChunLai2 & OUYANG ZiYuan2 1 School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China 2 National Astronomical Observatory of Chinese Academy of Sciences, Beijing 100012, China 3 Graduate School of Chinese Academy of Sciences, Beijing 100049, China 《Science China Earth Sciences》 SCIE EI CAS 2010年第11期1594-1601,共8页
Lunar geodetic parameters, which play an important role in lunar exploration, can be calculated from the gravity and topography data. With the CE-1 altimetry data and LP gravity model, we calculate such geodetic param... Lunar geodetic parameters, which play an important role in lunar exploration, can be calculated from the gravity and topography data. With the CE-1 altimetry data and LP gravity model, we calculate such geodetic parameters as the principle moment of inertia, the principle inertia axes, equatorial radius, polar radius, mean radius, flattening and offset between center of mass and center of figure (DCOM-COF). According to the CE-1 altimetry data and the above geodetic parameters, a tri-axial ellipsoid (CE-1-LAM-GEO) and a tri-axial level ellipsoid (CE-1-LAM-LEVEL) are calculated individually, providing mass center and figure center offset (DCOM-COF) and parameters more reliable in direction and magnitude. 展开更多
关键词 change-1 LASER ALTIMETRY data lunar ELLIPSOID lunar GRAVITY
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Scheme design of the CHANG'E-5T1 extended mission 被引量:3
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作者 Lei LIU Chunyang HU 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2018年第7期1559-1567,共9页
Flight schemes for the CHANG'E-5T1 extended mission are investigated in this paper.In the flight scheme and trajectory design, the remaining propellant of the CHANG'E-5T1 mission is utilized. The CHANG'E-5T1 missio... Flight schemes for the CHANG'E-5T1 extended mission are investigated in this paper.In the flight scheme and trajectory design, the remaining propellant of the CHANG'E-5T1 mission is utilized. The CHANG'E-5T1 mission is firstly introduced with feasible flight goals derived based on the terminal trajectory and satellite status. The flight schemes are designed to include a lunar return and the libration points in the Sun-Earth/Moon and Earth-Moon systems, with an emphasis on the Earth-Moon triangle libration point thus far unexplored. Secondly, three schemes are proposed for the CHANG'E-5T1 extended mission with different flight goals. The direct libration point orbit transfer and injection method is adopted to solve the issue in the transfer trajectory design.Furthermore, an innovative concept is proposed to transfer from the Earth-Moon collinear libration point to the triangle point using the Sun-Earth/Moon libration point. Finally, the merits and drawbacks of the three schemes are discussed in terms of flight time, control energy and frequency, flight distance, and goal value. As a result, the scheme including a lunar return and the Earth-Moon L2 libration point is selected for the CHANG'E-5T1 extended mission. A flight to the Earth-Moon libration point is achieved, replicating the achievement of the ARTEMIS mission. 展开更多
关键词 chang'e-5T1 mission Extended mission Flight scheme Libration point lunar exploration Trajectory design
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嫦娥一号卫星成像光谱仪光学系统设计与在轨评估 被引量:30
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作者 赵葆常 杨建峰 +3 位作者 常凌颖 陈立武 贺应红 薛彬 《光子学报》 EI CAS CSCD 北大核心 2009年第3期479-483,共5页
介绍了嫦娥一号卫星干涉成像光谱仪的科学目标、总体设计思想、方案选型、工作原理、光学实施方案、光学系统设计及评价、空间环境适应性考虑、发射前光学图像质量检测、在轨运行情况及在轨性能评测.
关键词 月球探测 嫦娥一号 CCD立体相机 干涉成像光谱仪 在轨图像质量
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探月光学 被引量:8
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作者 赵葆常 杨建峰 +3 位作者 贺应红 常凌颖 陈立武 薛彬 《光子学报》 EI CAS CSCD 北大核心 2009年第3期461-467,共7页
介绍了我国首次绕月探测嫦娥一号卫星的主载荷CCD立体相机与干涉成像光谱仪的原理、设计思想、技术措施与特色、设计结果以及在轨图像质量评估与检测.CCD立体相机采用一个广角物镜加一块面阵CCD的独特技术方案,从而使立体相机具有结构... 介绍了我国首次绕月探测嫦娥一号卫星的主载荷CCD立体相机与干涉成像光谱仪的原理、设计思想、技术措施与特色、设计结果以及在轨图像质量评估与检测.CCD立体相机采用一个广角物镜加一块面阵CCD的独特技术方案,从而使立体相机具有结构紧凑、小型轻量、配准精度高、航天环境适应性强等优点.4种曝光时间与4种电子学增益共16组合,可以实现同轨不同纬度的曝光量调整.干涉成像光谱仪采用了大比尺缩小的图像传递、2×2像元合并、矩形孔径光阑、2种曝光时间与3种电子学增益共6种组合的在轨曝光量调整等技术措施.在轨运行表明,各项技术措施有效,达到了预期目标. 展开更多
关键词 月球探测 嫦娥一号 CCD立体相机 干涉成像光谱仪 在轨图像质量
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Bouguer gravity anomaly of the Moon from CE-1 topography data:Implications for the impact basin evolution 被引量:5
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作者 LIANG Qing CHEN Chao +2 位作者 HUANG Qian CHEN Bo PING JinSong 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2009年第12期1867-1875,共9页
In this study,the terrain correction for lunar free-air gravity anomaly (FAGA) is calculated in spherical coordinates based on the global topography data detected by the laser altimeter on Chang'E-1 (CE-1). The ob... In this study,the terrain correction for lunar free-air gravity anomaly (FAGA) is calculated in spherical coordinates based on the global topography data detected by the laser altimeter on Chang'E-1 (CE-1). The obtained lunar Bouguer gravity anomaly (BGA) reveals density irregularities of the interior mass. BGA is important in characterizing the mascon basins. According to the BGA of the Moon,the South Pole-Aitken (SPA) basin is considered the largest mascon basin on the Moon,and the feature of BGA in the basin implies the impacting direction. Further,the mascon basins seem to be classified into two types,Type Highland and Type Plain. For the mascon basins of Type Highland the dense materials mainly come from the shallow crust,which are associated with the basalt deposits. The other type,Type Plain,includes mascon basins whose major dense materials may be located deep at the litho-sphere,corresponding to the uplifted mantle. 展开更多
关键词 change-1 lunar Bouguer GRAVITY ANOMALY mascon BASIN evolution
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Positioning of the CE-1's impact site based on CCD image data photographed during the controlled impact on the Moon
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作者 LIU JianJun REN Xin +3 位作者 ZOU XiaoDuan WANG WenRui MOU LingLi LI ChunLai 《Science China Earth Sciences》 SCIE EI CAS 2012年第1期83-89,共7页
Up to now, many lunar explorations concluded their scientific mission through the impact on the lunar surface. The prediction and positioning of impact sites are based on the extrapolated orbiting data together with t... Up to now, many lunar explorations concluded their scientific mission through the impact on the lunar surface. The prediction and positioning of impact sites are based on the extrapolated orbiting data together with the real time orbiting data and observations from ground based telescope provided by TT & C System. As most lunar missions carded cameras onboard, a new method of positioning of CE-1 impact site is put forward. It is based on the CCD image data photographed during the con- trolled impact and the existing lunar terrain data. Test results from this new method also validate the published impact site po sition. 展开更多
关键词 chang'e-1 lunar impact POSITIONING
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New features of the Moon revealed and identified by CLTM-s01 被引量:7
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作者 HUANG Qian PING JinSong +2 位作者 SU XiaoLi SHU Rong TANG GeShi 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2009年第12期1815-1823,共9页
Previous analyses showed a clear asymmetry in the topography,geological material distribution,and crustal thickness between the nearside and farside of the Moon. Lunar detecting data,such as topography and gravity,hav... Previous analyses showed a clear asymmetry in the topography,geological material distribution,and crustal thickness between the nearside and farside of the Moon. Lunar detecting data,such as topography and gravity,have made it possible to interpret this hemisphere dichotomy. The high-resolution lunar topographic model CLTM-s01 has revealed that there still exist four unknown features,namely,quasi-impact basin Sternfeld-Lewis (20°S,232°E),confirmed impact basin Fitzgerald-Jackson (25°N,191°E),crater Wugang (13°N,189°E) and volcanic deposited highland Yutu (14°N,308°E). Furthermore,we analyzed and identified about eleven large-scale impact basins that have been proposed since 1994,and classified them according to their circular characteristics. 展开更多
关键词 change-1 laser ALTIMETER lunar TOPOGRAPHY DICHOTOMY new FEATURE
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Origin of pit chains in the floor of lunar Copernican craters 被引量:4
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作者 XIAO ZhiYong ZENG ZuoXun +2 位作者 XIAO Long FA WenZhe HUANG Qian 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2010年第12期2145-2159,共15页
There are small pit chains in the floor of lunar Copernican craters. They are usually so small in scale that there are few lunar spacecrafts to detect their detailed morphology. Combining camera data from Lunar Orbite... There are small pit chains in the floor of lunar Copernican craters. They are usually so small in scale that there are few lunar spacecrafts to detect their detailed morphology. Combining camera data from Lunar Orbiter, Lunar Reconnaissance Orbiter (LRO), Kaguya and Chang’e-1 missions, 5 representative large Copernican craters on various terrains of the lunar surface are chosen to study the origin of the pit chains in the crater floor. The morphology and distribution characteristic of the pit chains are referred by the high resolution images in this research. It is suggested that it is the magma activities from the subsurface magma layer combining with the existence of fractures and faults under the crater floor that leaded the formation of the pit chains. The model is further verified and discussed using the regolith thickness data in the crater floor. Our model suggests that the pit chains are still developing in the floor of the Copernican craters and the Moon may not be totally cold. Finally, the model limitation and potential future work are discussed based on available data. 展开更多
关键词 lunar Copernican crater pit chains LRO LROC Kaguya change-1
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Construction of a virtual lunar environment platform 被引量:3
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作者 Min Chen Hui Lin +2 位作者 Yongning Wen Li He Mingyuan Hu 《International Journal of Digital Earth》 SCIE EI 2013年第5期469-482,共14页
Many of the world’s powerful and wealthy nations,including China,have devoted both large amounts of funding and considerable promotion to lunar research and exploration.The launch of Chinese Chang’e-1 satellite and ... Many of the world’s powerful and wealthy nations,including China,have devoted both large amounts of funding and considerable promotion to lunar research and exploration.The launch of Chinese Chang’e-1 satellite and the construction of the scientific observation data platform created a favourable opportunity for research into the lunar geometrical,physical and chemical environment.Based on this background,a Wide Area Network(WAN)based virtual lunar environment was constructed for observation data sharing and further exploration.The systematic architecture and framework were introduced and then strategies of mass data(e.g.lunar digital elevation model,lunar digital orthophoto map and typical thematic lunar data)organisation,integration,management and scheduling were then set up to achieve the 3D visualisation of typical lunar geomorphic features.Furthermore,the integration method of 3D lunar data and the process model of impact craters were studied;thus,the whole lunar and celestial collision process could be dynamically simulated.The results indicate that the WAN-based virtual lunar platform can be used effectively for public information sharing,scientific exploration and further to promote the development of deep space exploration in China. 展开更多
关键词 virtual lunar environment change-1 satellite platform construction digital earth
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