Implementation Issues Surrounding the New IAU Reference Systems for Astrodynamics
Implementation Issues Surrounding the New IAU Reference Systems for Astrodynamics
复制标题
围绕新的 IAU 天体动力学参考系统的实施问题
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
D. Vallado
中科院分区：
文献类型：
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作者：
D. Vallado
近年来，由于观测技术的进步，天体和地球参考系的实现越来越精确。由于其极高的精度，最新的IAU-2000参考系统的实施可能会给习惯于以前系统的用户带来许多挑战。本文回顾了国际天文学联合会的有关决议，提出了简要的方程，讨论了准确性和时间，审查必要的术语，讨论新的参考系统，并提供了建议的实施做法。最后给出了算例，说明了数值试验结果和不同实现方式之间的精度差异
The realizations of celestial and terrestrial reference systems have grown increasingly accurate in recent years, due to advancements in observational technology. Because of its extremely high precision, implementation of the latest IAU-2000 reference systems may pose numerous challenges for users accustomed to the former systems. This paper reviews the relevant IAU resolutions, presents summary equations, discusses accuracy and timing, examines nomenclature necessary to discuss the new reference systems, and offers recommended practices for implementation. Examples are provided to demonstrate the numerical test results and the precision differences between various implementations