Scientific objectives and payloads of Tianwen-1, China’s first Mars exploration mission |
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| Authors: | Yongliao Zou Yan Zhu Yunfei Bai Lianguo Wang Yingzhuo Jia Weihua Shen Yu Fan Yang Liu Chi Wang Aibing Zhang Guobin Yu Jihong Dong Rong Shu Zhiping He Tielong Zhang Aimin Du Mingyi Fan Jianfeng Yang Yongqing Peng |
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| Institution: | 1. National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;2. State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190,China;3. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China;4. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;5. Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;6. Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China;7. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;8. China Electronics Technology Group Corporation-38, Hefei 230088, China;9. Xi’an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi’an 710119, China;10. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China;11. Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou 730000, China;12. Beijing Research Institute of Telemetry, Beijing 100076, China |
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| Abstract: | This paper describes the scientific objectives and payloads of Tianwen-1, China’s first exploration mission to Mars. An orbiter, carrying a lander and a rover, lifted-off in July 2020 for a journey to Mars where it should arrive in February 2021. A suite of 13 scientific payloads, for in-situ and remote sensing, autonomously commanded by integrated payload controllers and mounted on the orbiter and the rover will study the magnetosphere and ionosphere of Mars and the relation with the solar wind, the atmosphere, surface and subsurface of the planet, looking at the topography, composition and structure and in particular for subsurface ice. The mission will also investigate Mars climate history. It is expected that Tianwen-1 will contribute significantly to advance our scientific knowledge of Mars. |
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| Keywords: | China’s first Mars exploration Scientific tasks Scientific payloads |
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