Journal of Astronautics ›› 2020, Vol. 41 ›› Issue (6): 790-799.doi: 10.3873/j.issn.1000-1328.2020.06.016

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Longjiang 2 : the First Independent Earth Moon Transfer Microsatellite

WEI Ming chuan, HU Chao ran, YAN Jing ye, Mohammed Bin Othman, ZHANG Zhe, WANG Feng, KONG Xian ren, CAO Xi bin   

  1. 1. Research Center of Satellite Technology, Harbin Institute of Technology, Harbin 150080, China; 2. National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China; 3. King Abdulaziz City for Science and Technology, Riyadh 12354, Saudi Arabia; 4. Lunar Exploration and Space Engineering Center, Beijing 100037, China
  • Received:2020-03-11 Revised:2020-05-14 Online:2020-06-15 Published:2020-06-25

Abstract: Longjiang-2, the world’s first microsatellite that completed lunar transfer, lunar insertion and lunar orbiting independently, is introduced in this paper. Firstly, the mission objects and design overview of the microsatellite are expounded. Then, the technical difficulties of the microsatellite, including orbit design and control, measurement and suppression of onboard electromagnetic interference, and wide-field 3D baseline interferometry, are analyzed. In addition, the implementation process of the mission is reviewed. Finally, the onboard payloads, including the low frequency radio interferometer, the Saudi optical camera, the VHF/UHF radio and the student CMOS camera, are elaborated; Moreover, the flight results of the onboard payloads are presented.

Key words: Lunar exploration, Microsatellite, Low frequency radio astronomy, Space cooperation

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