A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation

The light curve period of an asteroid plays an important role in determining the rotation period, the collision evolution and the YORP effect. There are many period extraction algorithms used to find the light curve period of asteroids with long term observation, which are mainly based on the freque...

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Autores principales:	Yang Liu, Liming Wu, Tianqi Sun, Pengfei Zhang, Xi Fang, Liyun Cheng, Bin Jiang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	asteroids general methods data analysis techniques photometric Elementary particle physics QC793-793.5
Acceso en línea:	https://doaj.org/article/57bf65151dc04015a21dfa155ed90ca0
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id	oai:doaj.org-article:57bf65151dc04015a21dfa155ed90ca0
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spelling	oai:doaj.org-article:57bf65151dc04015a21dfa155ed90ca02021-11-25T19:09:42ZA Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation10.3390/universe71104292218-1997https://doaj.org/article/57bf65151dc04015a21dfa155ed90ca02021-11-01T00:00:00Zhttps://www.mdpi.com/2218-1997/7/11/429https://doaj.org/toc/2218-1997The light curve period of an asteroid plays an important role in determining the rotation period, the collision evolution and the YORP effect. There are many period extraction algorithms used to find the light curve period of asteroids with long term observation, which are mainly based on the frequency, time and time–frequency domains. This paper presents a comprehensive and unparalleled comparison of the popular algorithms based on the DAMIT (Database of Asteroid Models from Inversion Techniques) data set to show the statistical results. Considering the quoted period, absolute magnitude, diameter, albedo, time span and number of observations, we analyze the accuracy of five popular methods using the light curve data of 2902 asteroids. We find that although the performance of all the algorithms varies little, Phase Dispersion Minimization (PDM) performs better, followed by Lomb-Scargle (LS), while Conditional Entropy (CE) is not better than the others under certain conditions. We also analyze the cases which are more suitable for searching by frequencies or by periods.Yang LiuLiming WuTianqi SunPengfei ZhangXi FangLiyun ChengBin JiangMDPI AGarticleasteroidsgeneralmethodsdata analysistechniquesphotometricElementary particle physicsQC793-793.5ENUniverse, Vol 7, Iss 429, p 429 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	asteroids general methods data analysis techniques photometric Elementary particle physics QC793-793.5
spellingShingle	asteroids general methods data analysis techniques photometric Elementary particle physics QC793-793.5 Yang Liu Liming Wu Tianqi Sun Pengfei Zhang Xi Fang Liyun Cheng Bin Jiang A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation
description	The light curve period of an asteroid plays an important role in determining the rotation period, the collision evolution and the YORP effect. There are many period extraction algorithms used to find the light curve period of asteroids with long term observation, which are mainly based on the frequency, time and time–frequency domains. This paper presents a comprehensive and unparalleled comparison of the popular algorithms based on the DAMIT (Database of Asteroid Models from Inversion Techniques) data set to show the statistical results. Considering the quoted period, absolute magnitude, diameter, albedo, time span and number of observations, we analyze the accuracy of five popular methods using the light curve data of 2902 asteroids. We find that although the performance of all the algorithms varies little, Phase Dispersion Minimization (PDM) performs better, followed by Lomb-Scargle (LS), while Conditional Entropy (CE) is not better than the others under certain conditions. We also analyze the cases which are more suitable for searching by frequencies or by periods.
format	article
author	Yang Liu Liming Wu Tianqi Sun Pengfei Zhang Xi Fang Liyun Cheng Bin Jiang
author_facet	Yang Liu Liming Wu Tianqi Sun Pengfei Zhang Xi Fang Liyun Cheng Bin Jiang
author_sort	Yang Liu
title	A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation
title_short	A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation
title_full	A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation
title_fullStr	A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation
title_full_unstemmed	A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation
title_sort	comprehensive comparison of period extraction algorithms for asteroids with long term observation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/57bf65151dc04015a21dfa155ed90ca0
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A Comprehensive Comparison of Period Extraction Algorithms for Asteroids with Long Term Observation

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