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arXiv 2503.19998astro-ph.IMastro-ph.EP

面向阿波菲斯任务的拉美西斯号射电科学实验

A Radio Science Experiment for the Ramses Mission to Apophis

Riccardo Lasagni Manghi, Marco Zannoni, Edoardo Gramigna, Paolo Tortora, Giacomo Paialunga, Andrea Negri, Giovanni Cucinella, Pier Luigi De Rubeis, Lorenzo Simone

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AI总结:

本文提出面向阿波菲斯任务的拉美西斯号射电科学实验,利用地基测量、光学成像和星间链路,高精度估计小行星质量、重力场和自旋状态,以研究其受潮汐力影响的变化。

AI中文摘要:

本文概述了为拉美西斯号(RAMSES)任务提出的射电科学实验(RSE),该任务将前往小行星(99942)阿波菲斯(Apophis),后者将于2029年4月经历一次近距离地球飞掠。这一事件为研究该小行星在强潮汐力作用下的物理和动力学变化提供了独特机会。该实验结合了地基无线电测量、光学成像以及拉美西斯号母船与阿波菲斯附近可部署子卫星之间的星间链路。利用高精度多普勒和光学导航数据,RSE旨在以前所未有的精度估计小行星的质量、重力场和自旋状态,从而加深我们对近地小行星演化和内部结构的理解。仿真结果显示了所提任务场景的稳健性,突出了多探测器配置和新型星间链路技术在实现精确重力科学结果中的关键作用。

英文摘要:

This paper outlines the Radio Science Experiment (RSE) proposed for the RAMSES mission to asteroid (99942) Apophis, which will undergo a close Earth encounter in April 2029. This event provides a unique opportunity to study the asteroid's physical and dynamical changes under strong tidal forces. The experiment leverages a combination of Earth-based radiometric measurements, optical imaging, and inter-satellite links between the RAMSES mothercraft and deployable subcraft in proximity to Apophis. Using high-precision Doppler and optical navigation data, the RSE aims to estimate the asteroid's mass, gravity field, and spin state with unparalleled accuracy, furthering our understanding of near-Earth asteroid evolution and internal structure. Simulation results show the robustness of the proposed mission scenario, highlighting the critical role of multi-probe configurations and novel inter-satellite link technologies in achieving accurate gravity science results.

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