Astrometric Observations of a Near-Earth Object Using the Image Fusion Technique | |
Zhang YG(张益恭)1,3,4,5; Wang JC(王建成)1,3,4,5; Su J(苏婕)1,3,4,5; Cheng XM(程向明)1,3,4,5; Zhang, Zhenjun2 | |
刊名 | ASTRONOMICAL JOURNAL |
2021-12 | |
卷号 | 162期号:6 |
ISSN号 | 0004-6256 |
DOI | 10.3847/1538-3881/ac2c6f |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | The precise astrometric observation of small near-Earth objects (NEOs) is an important observational research topic in the astrometric discipline, which greatly promotes multidisciplinary research, such as the origin and evolution of the solar system, the detection and early warning of small NEOs, and deep-space navigation. The characteristics of small NEOs, such as faintness and fast moving speed, restrict the accuracy and precision of their astrometric observations. In the paper, we present a method to improve the accurate and precise astrometric positions of NEOs based on image fusion technique. The noise analysis and astrometric test from the observed images of the open cluster M23 are given. Using the image fusion technique, we obtain the sets of superimposed images and original images containing reference stars and moving targets, respectively. The final fused image set includes background stars with high signal-to-noise ratios and ideal NEO images simultaneously and avoids the saturation of background stars. Using the fused images, we can reduce the influence of telescope tracking and NEO ephemeris errors on astrometric observations, and our results indicate that the accuracy and precision of NEO Eros astrometry are improved obviously after we choose suitable image fuse mode. |
学科主题 | 天文学 ; 天体测量学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11503083] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12173085] |
WOS关键词 | DISTORTION SOLUTION ; ORIGIN |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000720537000001 |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11503083, 12173085] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/24681] |
专题 | 云南天文台_天体测量及应用研究组 |
通讯作者 | Zhang YG(张益恭) |
作者单位 | 1.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 2.Anyang institute of technology, Anyang 455000, People's Republic of China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 4.Yunnan Astronomical Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; zhyg@ynao.ac.cn, jcwang@ynao.ac.cn; 5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, People's Republic of China; |
推荐引用方式 GB/T 7714 | Zhang YG,Wang JC,Su J,et al. Astrometric Observations of a Near-Earth Object Using the Image Fusion Technique[J]. ASTRONOMICAL JOURNAL,2021,162(6). |
APA | Zhang YG,Wang JC,Su J,Cheng XM,&Zhang, Zhenjun.(2021).Astrometric Observations of a Near-Earth Object Using the Image Fusion Technique.ASTRONOMICAL JOURNAL,162(6). |
MLA | Zhang YG,et al."Astrometric Observations of a Near-Earth Object Using the Image Fusion Technique".ASTRONOMICAL JOURNAL 162.6(2021). |
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