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题名: An improved astrometric calibration technique for space debris observation
作者: Sun, Rong-Yu1, 2; Zhao, Chang-Yin1, 2; Lu, Yao1, 2, 3
刊名: RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期: 2016-02-01
卷号: 16, 期号:2
关键词: techniques: image processing ; space vehicles ; astrometry ; methods: data analysis
DOI: 10.1088/1674-4527/16/2/029
文章类型: Article
英文摘要: An optical survey is the main technique for detecting space debris. Due to the specific characteristics of observation, the pointing errors and tracking errors of the telescope as well as image degradation may be significant, which make it difficult for astrometric calibration. Here we present an improved method that corrects the pointing and tracking errors, and measures the image position precisely. The pipeline is tested on a number of CCD images obtained from a 1-m telescope administered by Xinjiang Astronomical Observatory while observing a GPS satellite. The results show that the position measurement error of the background stars is around 0.1 pixel, while the time cost for a single frame is about 7.5 s; hence the reliability and accuracy of our method are demonstrated. In addition, our method shows a versatile and feasible way to perform space debris observation utilizing non-dedicated telescopes, which means more sensors could be involved and the ability to perform surveys could be improved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: OPTICAL OBSERVATIONS ; ASTRONOMICAL IMAGES ; SOURCE EXTRACTION ; GEO OBJECTS ; ALGORITHM ; RATIO
收录类别: SCI
项目资助者: National Natural Science Foundation of China(11125315 ; Youth Innovation Promotion Association of CAS(2015252) ; 11403108 ; 11273069)
语种: 英语
WOS记录号: WOS:000369252500009
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16121
Appears in Collections:空间目标与碎片观测研究基地_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Space Object & Debris Observat, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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