Astrometric Support for the Lunar-based Ultraviolet Telescope

	Astrometric Support for the Lunar-based Ultraviolet Telescope
	Qi, Zhaoxiang1 ; Yu, Yong1 ; Cao, Li 2; Cai, Hongbo 2; Qiu, Yunlei 2; Wei, Jianyan 2; Tang, Zhenghong1 ; Wang, Jing 2; Deng, Jinsong 2; Liao, Shilong1,3
刊名	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
	2015-11-01
卷号	127 期号:957 页码:1152-1160
英文摘要	The Lunar-based Ultraviolet Telescope (LUT) is an astronomical instrument aboard Chang'e 3, the lunar probe of China's Lunar Exploration Program that successfully landed on the northern part of the Moon's Mare Imbrium (340.4884E, 44.1214N) in late 2013. LUT is charting an ultraviolet map of the plane of the Milky Way and is also providing long-term light variability monitoring for a sample of RR Lyrae stars. However, the principal goal of the computer-controlled landing of the probe was a safe descent to a stable resting-place, and therefore, the precise orientation of LUT was never a priority. For this reason, at least theoretically, touch-down could have occurred anywhere and, for LUT, at any attitude, which would make the pointing and tracking of the wanted celestial objects practically impossible. Moreover, to reduce the data transmission load, the whole frame of every exposure could not be downloaded: only the image data containing the objects can make it to the ground; also, in order to save on electricity, the telescope does not usually track objects, which means that targets' accurate positions and velocities (within the focal plane CCD) are both needed. This paper presents the astrometric solution devised to solve these problems: feasibility is first shown with experiments done from Earth, and then confirmed with actual LUT observations from the Moon's surface.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
收录类别	SCI
语种	英语
WOS记录号	WOS:000364814000006
公开日期	2016-01-19
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/28397]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Qi, Zhaoxiang,Yu, Yong,Cao, Li,et al. Astrometric Support for the Lunar-based Ultraviolet Telescope[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2015,127(957):1152-1160.
APA	Qi, Zhaoxiang.,Yu, Yong.,Cao, Li.,Cai, Hongbo.,Qiu, Yunlei.,...&Guo, Sufen.(2015).Astrometric Support for the Lunar-based Ultraviolet Telescope.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,127(957),1152-1160.
MLA	Qi, Zhaoxiang,et al."Astrometric Support for the Lunar-based Ultraviolet Telescope".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 127.957(2015):1152-1160.