天文学进展Issue(2)：246-258,13.DOI:10.3969/j.issn.1000-8349.2014.02.08
上海天马65m射电望远镜归心测量
Local Survey of Shanghai Tianma 65-m Radio Telescope
摘要
Abstract
A geodetic local survey was implemented at the newly constructed Shanghai Tianma 65-m radio telescope. The geocentric three-dimensional coordinates of the reference point of this telescope in the precision of millimeters (formal error) were determined, and the axis-offset was shown not significant on the precision level of 3 mm. Specifically, the coordinates of the reference point in ITRF2008 are as follows,X Y Z=-2 826 708.604 54 679 237.054 2 3 274 667.531 4m±0.42 0.45 0.43mm . The reference epoch is taken as UTC 0h, 29 June 2013. The axis-offset f¯ is determined as the following, f¯=(2.95 ± 3.26) mm. <br> The outcome provides important reference to the subsequent activities of antenna main-tenance and scientific application, including the establishment of precise antenna orientation model, orientation guidance, fringe searching in data cross-correlation, analysis and applica-tion studies of VLBI observations. It is also important archive data for monitoring possible subsidence and lateral displacement of antenna foundation as well as deformation of antenna tracking-rail and structure.关键词
VLBI/GPS/参考点/轴线偏差/归心测量Key words
VLBI/GPS/reference point/axis-offset/local survey分类
天文与地球科学引用本文复制引用
李金岭,熊福文,余成磊,张津维,郭丽,范庆元..上海天马65m射电望远镜归心测量[J].天文学进展,2014,(2):246-258,13.基金项目
国家自然科学基金(11178024,11373060，U1331205)；探月工程(嫦娥三号)；上海市科学技术委员会(06DZ22101)；国家863计划(2012AA121603) （11178024,11373060，U1331205）
