Advances in Space Research ( IF 2.8 ) Pub Date : 2021-03-26 , DOI: 10.1016/j.asr.2021.03.018 Vishwa Vijay Singh , Liliane Biskupek , jürgen Müller , Mingyue Zhang
Lunar Laser Ranging (LLR) measures the distance between observatories on Earth and retro-reflectors on Moon since 1970. In this paper, we study the effect of non-tidal station loading (NTSL) in the analysis of LLR data. We add the non-tidal loading effect provided by three data centres: the German Research Centre for Geosciences (GFZ), the International Mass Loading Service (IMLS) and EOST loading service of University of Strasbourg in France, as observation level corrections of the LLR observatories in our analysis. This effect causes deformations of the Earth surface up to the centimetre level. Its addition in the Institute of Geodesy (IfE) LLR model, it leads to a change in the uncertainties (3- values) of the station coordinates resulting in a 0.60% improvement, an improvement in the post-fit LLR residuals of up to 9%, and a decrease in the power of the annual signal in the LLR post-fit residuals of up to 57%.
中文翻译:
LLR中非潮汐站负荷的影响
月球激光测距(LLR)测量地球上的观测站之间的距离复古月球自1970年以来-reflectors在本文中,我们研究了非潮汐站装载(NTSL)的LLR数据的分析效果。我们添加了法国斯特拉斯堡大学三个地球数据中心提供的非潮汐效应:德国地球科学研究中心(GFZ),国际质量载荷服务(IMLS)和EOST载荷服务,作为对LLR观测值的修正我们分析中的天文台。这种影响导致地球表面的变形达到厘米级。将其添加到大地测量研究所(IfE)LLR模型中后,会导致不确定性发生变化(3- 值),导致0.60%的改善,拟合后LLR残差的改善高达9%,并且LLR拟合后残差的年度信号功率降低了57% 。