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Macau Periodical Index (澳門期刊論文索引)

Author
Huang, Xiangjie; Jin, Xin; Lao, Sinhang; Ng, Manhei; Lu, Xiaoping
Title
Research on rotational period of NEA:2011UW158
Journal Name
澳門科技大學學報
Pub. Info
Jun. 2016, Vol.10, No.1, pp. 118-126
Link
http://lib.must.edu.mo/sites/default/files/assets/images/Duu/must_journal_201601.pdf
Keyword
Rotational Period；2011UW157；Asteroid；Light curves；Fourier series
Abstract
Abstract : The research on the rotational period of asteroids, especially the NEA(Near Earth Asteroids) plays very important role in the evolution of the solar system. In this article, we present a method od applying Fourier series to derive the rotational period of the asteroid 2011UW158 based on the light curves observed during three continuous nights at Purple Mountain Observatory in Nanjing. Furthermore, the rotational period is also derived by the Cellinoid shape model, which is consistent with the result by Fourier series method. Paragraph Headings: 1. Introduction 2. Fourier series method and Curve fitting 3. Cellinoid shape model 4. Numercial experiments 5. Conclusions Tables: 1. The fitted parameters for N=12,15,20, respectively Figures: 1. Cellinoid shape model 2. For August 2 of 2015 light curves, when N=12, search best-fitting curves(a), when N=15, search best-fitting curves (b) and when N=20, search best-fitting curves (c).‘*’for the light curves and ‘-’ for the fitted light curves 3. For August 3 of 2015 light curves, when N=12, search best-fitting curves(a), when N=15, search best-fitting curves (b) and when N=20, search best-fitting curves (c).‘*’for the light curves and ‘-’ for the fitted light curves 4. For August 4 of 2015 light curves, when N=12, search best-fitting curves(a), when N=15, search best-fitting curves (b) and when N=20, search best-fitting curves (c).‘*’for the light curves and ‘-’ for the fitted light curves 5. Search the best-fitting period for 2011UW158 asteroid based on Cellinoid shape model.The best-fitting period is 0.61076808 hour which is marked by ‘O’