中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 云南天文台
  3. 中国科学院云南天文台
  4. 丽江天文观测站（南方基地）
Improved precise positions of Apophis in 2013: recalibration based on Gaia DR3 and differential colour refraction correction

文献类型：期刊论文

作者Fang, X Q2,3; Peng, Q Y2,3; Lu, X2,3,4; Guo, B F1; Zhang XL(张西亮)5; Lin, F R6
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2025-11
卷号543期号:4页码:4130-4135
关键词methods: data analysis techniques: image processing astrometry minor planets, asteroids: individual: (99942) Apophis
ISSN号0035-8711
DOI10.1093/mnras/staf1646
产权排序第5完成单位
文献子类Article
英文摘要The near-Earth asteroid (99942) Apophis is recognized as potentially hazardous and will pass Earth at a close-approach distance in 2029. High-precision astrometry of Apophis is essential for refining its orbital parameters. In our previous study, we published 298 CCD observations of Apophis during the year 2013, with a precision of about 0.04 arcsec in either right ascension or declination. However, the differential colour refraction (DCR) effect was not addressed for observations when using the Johnson-B or no filters. Additionally, we now have the opportunity to utilize the high-accuracy Gaia DR3 catalogue. These considerations motivated us to reanalyse our previous data based on Gaia DR3 and DCR correction. Furthermore, we discuss the trailing problem evident in the Apophis images. We found that the modified moment centering method can effectively handle slightly trailed images. After re-reduction, the mean (O-C)s (observed minus computed) are more consistent over several nights, and the precision improves from 0.040 to 0.023 arcsec in right ascension and from 0.043 to 0.025 arcsec in declination, respectively. We believe that these improved precise positions of Apophis will be very useful for refining its orbital parameters.
学科主题天文学 ; 天体测量学
URL标识查看原文
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
WOS关键词ASTROMETRY ; PROGRAM ; STARS
资助项目CAS; CAS; People's Government of Yunnan Province[2022YFE0116800]; National Key R&D Program of China[12563011]; National Key R&D Program of China[12503073]; National Key R&D Program of China[12203019]; National Key R&D Program of China[11873026]; National Key R&D Program of China[11273014]; National Natural Science Foundation of China[20242BAB20033]; Natural Science Foundation of Jiangxi Province[CMS-CSST-2025-A16]; Natural Science Foundation of Jiangxi Province[CMS-CSST-2025-A19]; Natural Science Foundation of Jiangxi Province[CMS-CSST-2025-A20]; Natural Science Foundation of Jiangxi Province[CMS-CSST-2021-B08]; Natural Science Foundation of Jiangxi Province[U1431227]; China Manned Space Program
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001600619400001
出版者OXFORD UNIV PRESS
资助机构CAS ; CAS ; People's Government of Yunnan Province[2022YFE0116800] ; National Key R&D Program of China[12563011, 12503073, 12203019, 11873026, 11273014] ; National Natural Science Foundation of China[20242BAB20033] ; Natural Science Foundation of Jiangxi Province[CMS-CSST-2025-A16, CMS-CSST-2025-A19, CMS-CSST-2025-A20, CMS-CSST-2021-B08, U1431227] ; China Manned Space Program
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28675]  
专题云南天文台_丽江天文观测站（南方基地）
通讯作者Peng, Q Y
作者单位1.Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences (CAS), Beijing 100094, China;
2.Department of Computer Science, Jinan University, Guangzhou 510632, China;
3.Sino-French Joint Laboratory for Astrometry, Dynamics and Space Science, Jinan University, Guangzhou 510632, China;
4.Department of Physics, College of Physics & Optoelectronic Engineering, Jinan University, Guangzhou 510632, China;
5.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650011, China;
6.College of Artificial Intelligence, Jiangxi Normal University, Nanchang 330022, China
推荐引用方式
GB/T 7714		 Fang, X Q,Peng, Q Y,Lu, X,et al. Improved precise positions of Apophis in 2013: recalibration based on Gaia DR3 and differential colour refraction correction[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2025,543(4):4130-4135.
APA Fang, X Q,Peng, Q Y,Lu, X,Guo, B F,张西亮,&Lin, F R.(2025).Improved precise positions of Apophis in 2013: recalibration based on Gaia DR3 and differential colour refraction correction.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,543(4),4130-4135.
MLA Fang, X Q,et al."Improved precise positions of Apophis in 2013: recalibration based on Gaia DR3 and differential colour refraction correction".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 543.4(2025):4130-4135.

入库方式： OAI收割

来源：云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。