Field comparison of the total station-based QDaedalus and the zenith telescope-based CODIAC astrogeodetic systems for measurements of the deflection of the vertical

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-03-24 DOI:10.1080/00396265.2022.2054108

M. Albayrak, D. Willi, S. Guillaume

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引用次数: 4

Abstract

The precision and accuracy of a Leica MultiStation 60-based QDaedalus astrogeodetic measurement system are determined through observations at two locations in Switzerland. The precision of the QDaedalus was determined as 0.1″ for the N-S and E-W deflections of the verticals (DoVs) through 118 series of observations collected over 13 nights (in a 44-day observation period) at the HEIG-VD test station. The accuracy of the QDaedalus system was established by simultaneous parallel observations over two nights using the CODIAC system at the Zimmerwald Observatory. The differences between them were found to be 0.09″ and 0.02″ for the N-S and E-W DoV components, respectively. From these results, the accuracies of both DoV components can be interpreted as 0.1″. We also found a large systematic trend in the observed N-S DoV data at the HEIG-VD test station (0.008″/day). This study is the most extensive thus far for determining the precision and accuracy of the QDaedalus system for astrogeodetic measurements; it is also the first time that QDaedalus system’s accuracy has been established using parallel observations.

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基于全站仪的QDaedalus和基于天顶望远镜的CODIAC天文大地测量系统的垂直偏转测量的现场比较

通过在瑞士两个地点的观测，确定了基于徕卡多站60的q代达罗斯天体大地测量系统的精度和准确性。通过在heigs - vd试验站13个夜晚(44 d观测周期)采集的118组观测数据，确定了q代达勒斯卫星垂直方向(dov)的N-S和E-W偏转精度为0.1″。q代达罗斯系统的准确性是通过齐默尔瓦尔德天文台的CODIAC系统在两个晚上同时平行观测而建立的。N-S和E-W DoV分量的差异分别为0.09″和0.02″。从这些结果来看，两个DoV分量的精度可以解释为0.1″。HEIG-VD试验站观测到的N-S DoV数据也有较大的系统趋势(0.008″/day)。本研究是迄今为止最广泛的确定代达罗斯天体大地测量系统的精度和准确性的研究;这也是第一次利用平行观测来确定代达罗斯系统的精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.