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| 1 | Global inventory of Helium-3 in lunar regoliths estimated by a multi-channel microwave radiometer on the Chang-E 1 lunar satellite显示文摘Helium-3(3He) implanted by solar wind in the lunar regolith is a valuable resource because of its potential as a fusion fuel.On the basis of the Apollo regolith samples,a linear relationship between 3He abundance and solar wind flux,optical maturity and TiO2 content has been presented.China successfully launched its first lunar exploration satellite Chang-E 1(CE-1) on October 24,2007.A multi-channeled microwave radiometer was aboard the satellite with the purpose of measuring microwave thermal emission from the lunar surface layer.From the multi-channel brightness temperature(Tb) observed by CE-1,the global distribution of the regolith thickness was inverted from the multi-channel Tb,and was used to evaluate the total amount of 3He per unit area in the lunar regolith.The global inventory of 3He was estimated as being 6.6×108 kg;3.7×108 kg for the lunar nearside and 2.9×108 kg for the lunar farside. | FA WenZhe JIN YaQiu | 2010 | Chinese Science Bulletin2010，55，35： | 9 |
| 2 | 嫦娥五号探测器交会对接段定轨精度研究显示文摘嫦娥五号任务中,四器分离后,轨返组合体经过4次调相进入交会对接任务轨道;着上组合体则进行降轨、落月、起飞和4次远程导引后到达交班点,高精度的定轨预报是保证精准进行轨道控制、完成交会对接任务的重要前提.本文对嫦娥五号探测器交会对接段定轨预报精度进行研究,首先对轨返组合体长弧精密定轨精度进行分析,重叠弧段定轨分析表明,对于200 km高度的环月圆轨道, 12 h弧长定轨三维位置精度为18 m,其中径向为0.4 m.其次对上升器短弧定轨预报精度进行分析,由于上升器轨控频繁,短弧定轨除了用于控后轨道快速恢复,还需要对下个轨控点的位置速度进行预报,计算结果表明,测距联合VLBI数据5 min短弧定轨预报4 h与长弧定轨结果三维位置差异为3 km,速度差异为2.5 m/s;定轨弧长为0.5 h,三向测量数据(2站)定轨预报6 h三维位置最大差异为1 km,速度差异为1 m/s,联合VLBI数据定轨预报精度有量级上的提高,三维位置最大差异优于250 m,速度0.223 m/s;定轨弧长少于2 h (1圈),单站测距数据单独定轨结果不收敛,联合VLBI定轨并预报3 h三维位置差异150 m;当短弧定轨弧长大于3.5 h (近2圈),测距单独定轨预报6 h三维位置的最大差异优于30 m, VLBI数据的加入对定轨精度提高1倍至十几米.分析结果表明,嫦娥五号200 km圆轨道长弧定轨精度可以达到18 m, VLBI数据对提高嫦娥五号交会对接环月轨道的短弧定轨精度具有显著贡献. | 李培佳 黄勇 樊敏 杨鹏 刘思语 | 2021 | 中国科学:物理学、力学、天文学2021，51，11： | 6 |
| 3 | Photometric modeling of the Moon using Lommel-Seeliger function and Chang'E-1 IIM data显示文摘The imaging interferometer(IIM)aboard the Chang’E-1 lunar orbiter is the first multispectral imaging spectrometer for Chinese lunar missions.Before science applications(e.g.,FeO and TiO2mapping)of the IIM raw data,the radiance variation due to changes in illumination and viewing geometry has to be removed from the radiometrically calibrated IIM Level 2A images.To achieve this,we fit the IIM Level 2A radiance data with a Lommel-Seeliger photometric model consisting of an exponential term and a fourth order polynomial in the phase function,without distinguishing between lunar maria and highlands.The exponential and the fourth order polynomial parameters are derived separately by fitting to two datasets divided at a solar phase angle threshold,avoiding a decrease in the phase function close to zero phase angle.Different phase angle thresholds result in coincident fitting curves between 20°and 75°,while large discrepancies occur at other phase angles.Then the derived photometric model is used to normalize the IIM Level 2A data to radiance values at an incidence and phase angle of 30°and emission angle of 0°.Our photometric model is validated by comparing two photometrically normalized IIM radiance spectra covering the same areas,showing a relative deviation consistent with the IIM preflight calibration. | ZHANG Jiang LING ZongCheng ZHANG WenXi REN Xin LI ChunLai LIU JianZhong | 2013 | Chinese Science Bulletin2013，58，36： | 3 |
| 4 | Geological Characteristics and Model Ages of Marius Hills on the Moon显示文摘Marius Hills is a volcanic plateau on the nearside of the Moon.It is of great interest for its high concentration of volcanic features,including domes,cones,ridges,and rilles.However,the morphological and chronological characteristics of this plateau were not well studied due to the low resolution of early mission data.This study describes the detailed morphology of the volcanic features using the latest high spatial resolution images of the Terrain Camera(TC) onboard Selene-1(10 m/pix) and Narrow Angle Camera(NAC) onboard the Lunar Reconnaissance Orbiter(LRO) (0.5 m/pix) .We report here some new structures such as skylights and remnants of lava tubes.We have divided spectrally homogenous areas with Clementine UVVIS data and did crater size frequency distribution(CSFD) measurements with Lunar Orbiter(LO) IV and TC images in every spectral unit.We first report absolute model ages of 1.10 Ga for Marius basalt 1,1.49 Ga for Flamsteed basalt,and 1.46 Ga for Schiaparelli Basalt.In addition,we have identified several younger lava events:they are Marius basalt 2(814 Ma) ,medium to low titanium basalt(949 Ma) ,and undifferentiated medium titanium basalt(687 Ma) .Finally,we propose a mantle plume scenario for the formation of Marius Hills,which could solve the inconsistency of previous models. | 黄俊 肖龙 贺新星 乔乐 赵健楠 李卉 | 2011 | Journal of Earth Science2011，22，5： | 2 |
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