近地轨道器激光测距的极点坐标和日长

IF 0.5 4区 物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS
V. Ya. Choliy
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引用次数: 0

摘要

本文研究了利用特殊设计卫星激光测距观测数据的再处理确定地球方位参数的方法。这些是激光地球动力学卫星Lageos和ettalon以及低地球轨道卫星Lares, Ajisai, Starlette和Stella。作者开发了新的软件,提出了分析各种地球动力学现象模型的新方法;转换或过程首先单独测试,然后才包含到包中。重点分析了利用激光测距数据对近地轨道飞行器进行EOP测定的可能性。结果表明,尽管Lares的轨道(高度为700公里)比Lageos的轨道(7000公里)低得多,但从Lares数据得到的EOP系列总体上具有相同的精度。它是通过新的软件和一种新的研究模型的方法来实现的。最终的EOP数据集同时通过组合来自每个卫星的原始EOP或组合条件方程来计算。在后一种情况下,最终溶液的精度提高10-15%。它使我们能够永久推荐低地球轨道飞行器用于地球动力学。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pole Coordinates and Length of Day from Laser Ranging of Low Earth Orbiters

This article is devoted to determining Earth’s Orientation Parameters (EOP) from reprocessing of the Laser ranging observations of the specially designed satellites. These are laser geodynamics satellites Lageos and Etalon and Low Earth Orbiters Lares, Ajisai, Starlette, and Stella. New software was created by the author and a new approach was proposed to analyze each model of geodynamics phenomena; a transformation or process was first tested separately and only then included into the package. The main attention was paid to the analysis of the possibility to use Laser Ranging data to Low Earth Orbiters for EOP determination. It was shown that, despite the much lower Lares’s orbit (height is 700 km) than the Lageos’s orbit (7000 km), the resulting EOP series from Lares data have the same precision in general. It was achieved by new software and a new author approach to the study of the models. Final EOP data sets were computed at the same time by a combination of raw EOPs from each satellite or from the combination of the conditional equations. In the latter case, the precision of the final solution is 10–15% better. It allows us to recommend Low Earth orbiters for geodynamics on a permanent basis.

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来源期刊
Kinematics and Physics of Celestial Bodies
Kinematics and Physics of Celestial Bodies ASTRONOMY & ASTROPHYSICS-
CiteScore
0.90
自引率
40.00%
发文量
24
审稿时长
>12 weeks
期刊介绍: Kinematics and Physics of Celestial Bodies is an international peer reviewed journal that publishes original regular and review papers on positional and theoretical astronomy, Earth’s rotation and geodynamics, dynamics and physics of bodies of the Solar System, solar physics, physics of stars and interstellar medium, structure and dynamics of the Galaxy, extragalactic astronomy, atmospheric optics and astronomical climate, instruments and devices, and mathematical processing of astronomical information. The journal welcomes manuscripts from all countries in the English or Russian language.
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