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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2022, Vol. 43 ›› Issue (3): 626689.doi: 10.7527/S1000-6893.2021.26689

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Technical innovations of the Tianwen-1 Mission

ZHANG Rongqiao1, GENG Yan1, SUN Zezhou2, LI Dong3, ZHONG Wenan4, LI Haitao5, CUI Xiaofeng6, LIU Jianjun7   

  1. 1. Lunar Exploration and Space Engineering Center, Beijing 100190, China;
    2. Beijing Institute of Spacecraft System Engineering, Beijing 100094, China;
    3. China Academy of Launch Vehicle Technology, Beijing 100076, China;
    4. Xichang Satellite Launch Center, Xichang 615099, China;
    5. Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094, China;
    6. Beijing Aerospace Control Center, Beijing 100094, China;
    7. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2021-11-23 Revised:2021-12-01 Online:2022-03-15 Published:2021-12-10
  • Supported by:
    National Science and Technology Major Project

Abstract: Tianwen-1 is the first mission in the world to achieve the three goals of Mars orbiting, landing and roving in one mission, and has made some key-technology breakthroughs. The mission objectives and flight progress are introduced, and eight kinds of innovation achievements and the main technical breakthroughs are comprehensively summarized in this paper. Specifically, the key technologies include the overall design of Mars orbiting, landing and roving objectives strongly coupled, multi-trajectory launch of Earth escape orbit, interplanetary flight and Mars capture, Mars enter, descent and landing, solutions adaptive to Martian harsh environment, 400-million-kilometer communication, advanced payloads of remote sensing and patrol detection, and Mars environmental modeling and ground validation. The complete success of the mission has made China become one of the advanced countries in the field of deep space exploration.

Key words: Tianwen-1, Mars exploration, orbiting, landing and roving, innovation achievement, key technology

CLC Number: