First results of the low energy ion spectrometer onboard a Chinese geosynchronous satellite

作     者：SHAN Xu MIAO Bin CAO Zhe SUN ZhenYu LI YiRen LIU Kai GUO XingYu QU SanBiao SU ZhenPeng SHEN ChengLong PAN ZongHao LI Xin HAO XinJun YANG XiaoPing TIAN Chao JIANG Yu LIU ShuBin AN Qi CHEN XiangJun WANG YuMing SHAN Xu;MIAO Bin;CAO Zhe;SUN ZhenYu;LI YiRen;LIU Kai;GUO XingYu;QU SanBiao;SU ZhenPeng;SHEN ChengLong;PAN ZongHao;LI Xin;HAO XinJun;YANG XiaoPing;TIAN Chao;JIANG Yu;LIU ShuBin;AN Qi;CHEN XiangJun;WANG YuMing

作者机构：Hefei National Research Center for Physical Sciences at the MicroscaleDepartment of Modern PhysicsUniversity of Science and Technology of ChinaHefei230026China CAS Key Laboratory of Geospace EnvironmentSchool of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei230026China State Key Laboratory of Particle Detection and Electronics(IHEP-USTC)Department of Modern PhysicsUniversity of Science and Technology of ChinaHefei230026China Shandong Institute of Space Electronic TechnologyYantai264003China State Key Laboratory of Astronautic DynamicsXi’an Satellite Control CenterXi’an710043China CAS Center for Excellence in Comparative PlanetologyUniversity of Science and Technology of ChinaHefei230026China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2023年第66卷第5期

页      面：1378-1384页

核心收录：

学科分类：08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the grants from Chinese Academy of Sciences(Grant Nos.XDB41000000,QYZDB-SSW-DQC015) the National Natural Science Foundation of China(Grant No.42188101) 

主　　题：low energy ion spectrometer geosynchronous orbit inflight measurement differential energy flux surface charging storm/substorm 

摘      要：A Chinese geosynchronous satellite was launched on June 23,*** carried a plasma detection package to monitor the space environment around the *** we report the inflight performance of a low energy ion spectrometer(LEIS),one of the primary instruments in the plasma detection package,and its initial observations in *** from the state-of-the-art design of a top-hat electrostatic analyzer cooperated with angular scanning deflectors,three-dimensional measurement of ions in space with a large field of view of 360°×90°and a wide energy range from 50 eV to 25 keV per charge has been *** differential energy flux spectra of ions around the orbit have shown clear signatures of surface charging and storm/substorm ion *** occurrence of surface charging could be caused by the lack of photoemission at the Earth s eclipse(near the midnight)or the storm energetic electron injection at the dawn *** present results demonstrated a good performance of the LEIS payload in flight for monitoring the space ion environment around the *** situ measurements of the LEIS payload provide us an opportunity to understand the magnetospheric ion dynamics and forecast the associate space weather impacts.