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In-orbit operation and research progress of the CHASE mission
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Chuan LI1, 2, Cheng FANG1, Mingde DING1, Zhen LI1, Ye QIU2, Shihao RAO1, Pengfei CHEN1, Yu DAI1, Xin CHENG1, Yang GUO1, Wei ZHANG3, 4, Weiqiang CHENG4, Wei YOU3, Xi LU3, Jianxin CHEN3, Chengshan HAN5, Qiang LIU5
Science & Technology Review | 2025, 43(16) : 35 - 42
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Science & Technology Review | 2025, 43(16): 35-42
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In-orbit operation and research progress of the CHASE mission
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Chuan LI1, 2, Cheng FANG1, Mingde DING1, Zhen LI1, Ye QIU2, Shihao RAO1, Pengfei CHEN1, Yu DAI1, Xin CHENG1, Yang GUO1, Wei ZHANG3, 4, Weiqiang CHENG4, Wei YOU3, Xi LU3, Jianxin CHEN3, Chengshan HAN5, Qiang LIU5
Affiliations
  • 1. School of Astronomy and Space Science, Nanjing University, Nanjing 210023, China
  • 2. Institute of Science and Technology for Deep Space Exploration, Suzhou Campus, Nanjing University, Suzhou 215163, China
  • 3. Shanghai Institute of Satellite Engineering, Shanghai 201109, China
  • 4. Shanghai Academy of Spaceflight Technology, Shanghai 201109, China
  • 5. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Published: 2025-08-28 doi: 10.3981/j.issn.1000-7857.2025.03.00035
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The Chinese Hα Solar Explorer (CHASE), dubbed "Xihe" – Goddess of the Sun, is China's first solar space mission for both scientific and technological experiments. Since its launch on October 14, 2021, it has been operating well in orbit with excellent scientific data quality. Based on a new type of satellite platform with ultra-high pointing accuracy and ultra-high stability, the Hα Imaging Spectrograph (HIS) onboard the CHASE mission has, for the first time in the world, achieved space-based spectroscopic observations in the solar Hα waveband. The pixel spectral resolution reaches~0.024 Å, the full-disk scanning time is~46 seconds, and the spatial resolution is~1.2 arcseconds. Using the high-quality data from CHASE, researchers have achieved a series of original scientific results in the dynamic processes of solar activities in the lower atmosphere, the formation, evolution, and eruption of solar filaments, as well as comparative studies of solar and stellar eruptions.

solar physics  /  space-based telescope  /  solar activity  /  photosphere  /  chromosphere
Chuan LI, Cheng FANG, Mingde DING, Zhen LI, Ye QIU, Shihao RAO, Pengfei CHEN, Yu DAI, Xin CHENG, Yang GUO, Wei ZHANG, Weiqiang CHENG, Wei YOU, Xi LU, Jianxin CHEN, Chengshan HAN, Qiang LIU. In-orbit operation and research progress of the CHASE mission[J]. Science & Technology Review, 2025 , 43 (16) : 35 -42 . DOI: 10.3981/j.issn.1000-7857.2025.03.00035
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Year 2025 volume 43 Issue 16
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doi: 10.3981/j.issn.1000-7857.2025.03.00035
  • Receive Date：2025-03-10
  • Online Date：2025-12-18
  • Published：2025-08-28
Article Data
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History
  • Received：2025-03-10
  • Revised：2025-04-07
Funding
Affiliations
    1. School of Astronomy and Space Science, Nanjing University, Nanjing 210023, China
    2. Institute of Science and Technology for Deep Space Exploration, Suzhou Campus, Nanjing University, Suzhou 215163, China
    3. Shanghai Institute of Satellite Engineering, Shanghai 201109, China
    4. Shanghai Academy of Spaceflight Technology, Shanghai 201109, China
    5. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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