Precise measurement of the light curves for space debris with wide field of view telescope

doi:10.1007/s10509-019-3527-y

	Precise measurement of the light curves for space debris with wide field of view telescope
	Sun, Rong-yu 1,2; Yu, Sheng-xian 1,2
刊名	ASTROPHYSICS AND SPACE SCIENCE
	2019-03-01
卷号	364 期号:3 页码:8
关键词	Methods: data analysis Techniques: image processing Techniques: photometric Space debris
ISSN号	0004-640X
DOI	10.1007/s10509-019-3527-y
通讯作者	Sun, Rong-yu(rysun@pmo.ac.cn)
英文摘要	Optical means are the main techniques for space debris observations. Wide field of view telescopes play important roles and exhibit specially high efficiency in space debris surveys and catalogue maintenance. However, due to the defects of the extreme optical design of the telescope, as well as the errors caused by non-standard photometric systems, challenges arise for the light curve acquisition and precise photometry. As the rise of the demand of rotational characteristics investigations for space debris and active debris removal, measuring the brightness variations of space debris with high accuracy is crucial and important. Under this circumstance, an improved method which measures the light curves of space debris precisely for wide field of view telescopes is proposed. In our pipeline the background stellar is optimally selected, then the local reference frame is built through consecutive frames, and the brightness variation of the object is obtained directly based on the ratio of the intensity itself and the one of reference star. Trial observations are performed and a number of raw CCD images is utilized to test the method. It is demonstrated that the proposed method exhibits a better accuracy and robustness than the standard photometric technique on measuring the light curves of space debris. It provides a new solution for precise measurement of light curves with wide field of view sensors, and deserves wide applications in researches of light curves and rotational characteristics for space debris.
WOS关键词	GEO ; EVOLUTION ; ROTATION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000460394100001
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/23784]
专题	中国科学院紫金山天文台
通讯作者	Sun, Rong-yu
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210034, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Space Object & Debris Observat, Nanjing 210034, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Sun, Rong-yu,Yu, Sheng-xian. Precise measurement of the light curves for space debris with wide field of view telescope[J]. ASTROPHYSICS AND SPACE SCIENCE,2019,364(3):8.
APA	Sun, Rong-yu,&Yu, Sheng-xian.(2019).Precise measurement of the light curves for space debris with wide field of view telescope.ASTROPHYSICS AND SPACE SCIENCE,364(3),8.
MLA	Sun, Rong-yu,et al."Precise measurement of the light curves for space debris with wide field of view telescope".ASTROPHYSICS AND SPACE SCIENCE 364.3(2019):8.