Experiments on Space-Ground Cooperative Monitoring and Precise Orbit Determination of Near-Earth Asteroids

Abstract

Based on the Space Debris Experiment Telescope of the National Astronomical Observatories of the Chinese Academy of Sciences，together with the Yangwang-1 and Jilin-1 satellites，a space-based and ground-based collaborative monitoring experiment for near-Earth asteroids was designed and carried out. By using image processing and orbit determination methods，target detection and astronomical positioning of observation images were realized，and the orbit of near-Earth asteroids was precisely determined. Based on the analysis，the existing equipment can realize space-ground collaborative monitoring and orbit cataloging of near-Earth asteroids，and provide orbital data support for the study and estimating of impact risk of near-Earth asteroids.

Key words： near-Earth asteroids; space-based and ground-based collaborative monitoring; precise orbit determination; data fusion

References

[1] MATTHEW D，LINDLEY J，RENATA K，et al. National near-Earth object preparedness strategy and action plan for near-Earth object hazards and planetary defense[C]//Proceedings of Interagency Working Group for Detecting and Mitigating the Impact of Earth-Bound Near-Earth Objects. Washington：White House Office of Science，Technology，and Policy （OSTP），2023.
[2] STOKES G H，BRENT W B，WILLIAM F B，et al. Update to determine the feasibility of enhancing the search and characterization of NEOs[R]. USA：NASA，2017.
[3] NATHAN M. Comparing NEO search telescopes[J]. Publications of the Astronomical Society of the Pacific，2016，128（962）：045004.
[4] YANG H，KIM M J. Observation campaign of （99942） Apophis in the 2021 apparition[C]//Proceedings of Apophis T-7 Years：Knowledge Opportunities for the Science of Planetary Defense. USA：USRA/LPI，2022.
[5] IVEZIC J A. LSST：comprehensive NEO detection，characterization，and orbits[C]//Proceedings of the International Astronomical Union. Cambridge：Cambridge University Press，2007 .
[6] SONNETT S，MAINZER A.，NEOCam/NEO surveyor survey cadence：discovery，self-follow-up，and orbital quality[C]//Proceedings of 51st Lunar and Planetary Science Conference. Texas：USRA/LPI，2020.
[7] SONG Y Z. Near-Earth asteroids orbit determination by DRO space-based optical observations[C]//Proceedings of EGU General Assembly. Austria：EGU，2023.
[8] 胡寿村，季江徽，赵玉晖，等. 嫦娥二号飞越小行星试验中图塔蒂斯轨道确定与精度分析[J]. 中国科学：技术科学，2013，43：506-511.
HU S C，JI J H，ZHAO Y H，et al. Orbit determination and accuracy analysis of asteroid Toutatis in Chang'e 2 flyby[J]. Scientia Sinica Technologica，2013，43：506-511.
[9] CHESLEY S R，OSTRO S J，VOKROUHLICKY D，et al. ，Direct detection of the Yarkovsky effect via radar ranging to the near Earth asteroid 6489 Golevka[J]. Science，2003，302：1739-1742.
[10] PÉREZ-HERNÁNDEZ J A，BENET L. Non-zero Yarkovsky acceleration for near-Earth asteroid（99942）Apophis[J]. Communication Earth & Environment 2022，10 （3）：99507.
[11] LIU X H，YANG X Y，GAN Z T，et al. Measuring the orbit drift of near-Earth asteroids by the yarkovsky effect[J]. The Astrophysical Journal，2023，950（1）：50.
[12] 解延浩，马驰，钟兴，等. 基于“吉林一号”视频卫星的天基空间目标观测研究[J]. 空间碎片研究，2019（4）：13-20.
XIE Y H，MA C，ZHONG X，et al. Research on space-based space target observation based on “Jilin-1” video satellite[J]. Space Debris Research，2019（4）：13-20.
[13] 刘林，汤靖师. 卫星轨道理论与应用[M]. 北京：电子工业出版社，2015.