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Precise CCD positions of Apophis in 2013
Wang, N.1,2; Peng, Q. Y.1,2; Zhang XL(张西亮)2,3; Zhang, Q. F.1,2; Li, Z.1,2; Meng, X. H.1,2
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2015-12-21
Volume454Issue:4Pages:3805-3809
DOI10.1093/mnras/stv2236
Contribution Rank第3完成单位
Indexed BySCI
Keywordtechniques: image processing astrometry minor planets, asteroids: individual: (99942) Apophis
Abstract

298 CCD observations during the year 2013 have been reduced to derive the precise positions of near-Earth asteroid (99942) Apophis. The observations were made by the 2.4-m telescope at Yunnan Observatory over 10 nights. The position and proper motion errors of the reference stars in the USNO CCD Astrograph Catalogue 4 (UCAC4) star catalogue are corrected by using the newest correction table provided by Farnocchia et al. The geometric distortion of the field of view is also derived from the unbiased star positions in UCAC4 and removed. The theoretical position of Apophis was retrieved from the Jet Propulsion Laboratory Horizons system. Our results show that the mean O-Cs (observed minus computed) are 0.016 and 0.034 arcsec in right ascension and declination, respectively. The dispersions of our observations are estimated at 0.041 and 0.045 arcsec in right ascension and declination, respectively.

Funding ProjectCAS ; People's Government of Yunnan Province ; National Natural Science Foundation of China[11273014] ; National Natural Science Foundation of China[U1431227] ; National Natural Science Foundation of China[11403008] ; National Natural Science Foundation of China[11203070] ; Natural Science Foundation of Guangdong ; Science and Technology Innovation Funds for Universities of Department of education of Guangdong Province[2013KJCX0020] ; Fundamental Research Funds for the Central Universities
Funding OrganizationCAS ; People's Government of Yunnan Province ; National Natural Science Foundation of China[11273014, U1431227, 11403008, 11203070] ; Natural Science Foundation of Guangdong ; Science and Technology Innovation Funds for Universities of Department of education of Guangdong Province[2013KJCX0020] ; Fundamental Research Funds for the Central Universities
Language英语
Subject Area天文学 ; 天体物理学 ; 实测天体物理学 ; 天体测量学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000368001600039
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSKY SURVEY 2MASS ; GEOMETRIC DISTORTION ; CATALOG ; YARKOVSKY
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9404
Collection丽江天文观测站(南方基地)
Corresponding AuthorWang, N.
Affiliation1.Department of Computer Science, Jinan University, Guangzhou 510632, China
2.Sino-French Joint Laboratory for Astrometry, Dynamics and Space Science, Jinan University, Guangzhou 510632, China
3.Yunnan observatories, Chinese Academy of Sciences (CAS), PO Box 110, Kunming 650011, China
Recommended Citation
GB/T 7714
Wang, N.,Peng, Q. Y.,Zhang XL,et al. Precise CCD positions of Apophis in 2013[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,454(4):3805-3809.
APA Wang, N.,Peng, Q. Y.,Zhang XL,Zhang, Q. F.,Li, Z.,&Meng, X. H..(2015).Precise CCD positions of Apophis in 2013.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,454(4),3805-3809.
MLA Wang, N.,et al."Precise CCD positions of Apophis in 2013".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 454.4(2015):3805-3809.
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