Chinese Space Science and Technology ›› 2026, Vol. 46 ›› Issue (4): 93-106.doi: 10.16708/j.cnki.1000-758X.2026.0099

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Progress in the study of Yarkovsky and YORP effects on Near-Earth Objects

JIANG Molei1,2,JI Jianghui1,2,*,YING Jiajun1,2,HU Shoucun1,2   

  1. 1.Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023,China
    2.School of Astronomy and Space Sciences,University of Science and Technology of China,Hefei 230026,China
  • Received:2025-10-10 Revision received:2025-12-22 Accepted:2026-01-07 Online:2026-07-16 Published:2026-07-31

Abstract: As the most significant non-gravitational force, the Yarkovsky and Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effects, jointly govern the orbital evolution of Near-Earth Objects(NEOs). They are indispensable for constraining physical properties and assessing impact risks. Over the past three decades, these effects have been widely applied to precise orbit determination and resolving key planetary science questions. Starting from the fundamental principles and theoretical models of both effects, this paper provided intuitive examples to clarify their mechanisms. New and past studies addressing identical problems were critically compared, with proposing plausible explanations of unreasonable conclusions and methodological improvements. We also summarized some recent observations. Through analysing dynamics and physical properties of NEOs in detail, previous studies have partially reconstructed the early solar system environment and addressed planetary formation and evolution challenges. However, there are still many deficiencies, so these goals will continue to guide future efforts to unravel unresolved questions.modulates the Yarkovsky effect. It is necessary to conduct integrated research.

Key words: Near-Earth Objects, Yarkovsky effect, YORP effect, dynamical evolution