Hybrid Optimization Algorithm in the Photometric Inversion of Periods for Asteroids

作     者：Xin-Ran Li Yong-Xiong Zhang Hai-Bin Zhao Xiaoping Zhang Xiao-Ping Lu Xin-Ran Li;Yong-Xiong Zhang;Hai-Bin Zhao;Xiaoping Zhang;Xiao-Ping Lu

作者机构：State Key Laboratory of Lunar and Planetary SciencesMacao University of Science and TechnologyMacao 999078China School of Computer Science and EngineeringMacao University of Science and TechnologyTaipaMacao 999078China Key Laboratory of Planetary SciencesPurple Mountain ObservatoryCASNanjing 210023China CAS Center for Excellence in Comparative PlanetologyCASHefei 230026China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2023年第23卷第5期

页      面：66-77页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0704[理学-天文学] 0825[工学-航空宇航科学与技术] 

基　　金：funded by the grant from the Macao Young Scholars Program (Project code: AM201920) the National Natural Science Foundation of China (NSFC, grant No. E11903085) funded by the Science and Technology Development Fund, Macao SAR (File Nos. 0073/ 2019/A2 & 0096/2022/A) supported by the Science and Technology Development Fund, Macao SAR (File No. 0042/ 2018/A2) supported by the B-type Strategic Priority Program of CAS (Grant No. XDB41000000) the NSFC (Grant Nos. 62227901 & 11633009) Space debris and NEO research project (Nos. KJSP2020020204 & KJSP2020020102) Minor Planet Foundation 

主　　题：astrometry-methods numerical-planets and satellites fundamental parameters 

摘      要：Asteroids,as the primitive building blocks for the formation of our solar system,could reveal its evolution mechanism,and have attracted more and more attention from the public and professional institutions in recent *** physical properties,such as rotational period,spin axis and overall shape,can be inverted from ground-and space-based photometric *** the inversion process is very time-consuming,this paper combines the genetic algorithm with the Levenberg–Marquardt(LM) algorithm,and presents a hybrid optimization algorithm based on a Cellinoid shape model for the inversion of rotational periods,which greatly improves the inversion *** proposed hybrid algorithm is applied to the synthetic lightcurves generated for an assumed Cellinoid shape model and the inverted rotational period results are consistent with the preset ones with a reduced search time,compared with the LM ***,multiple numerical experiments on the periods are performed on lightcurves and sparse observations of real asteroids to confirm that the proposed method can perform well in improving computational efficiency.