Target marker deployment strategies for Hayabusa2 extended mission to fast rotator 1998 KY26

IF 6.5 1区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Astrodynamics Pub Date : 2025-08-23 DOI:10.1007/s42064-024-0229-1

Anivid Pedros-Faura, Mirko Trisolini, Yuichi Tsuda, Daniel J. Scheeres, Shota Kikuchi, Jay W. McMahon

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引用次数: 0

Abstract

The Hayabusa2 extended mission, named Hayabusa2# (SHARP: Small Hazardous Asteroid Reconnaissance Probe), is planned to rendezvous with the fast-rotating asteroid 1998 KY26 in 2031. Hayabusa2# will be the first ever mission to rendezvous with such a rapidly rotating small asteroid, posing significant challenges because of its distinctive dynamical environment. In this paper, we investigate potential target marker (TM) deployment strategies, for both landing and orbiting scenarios, to maximize science acquisition. In particular, we model the surface and orbital environments to identify feasible target market operations and present landing site selection strategies and candidate insertion orbits considering realistic deployment errors. The TM is one of the only two remaining deployable payloads, and therefore, can play a critical role during the extended mission phase. Our results show that surface operations can be extremely challenging whereas orbit operations could help us gain valuable information on the asteroid’s gravity field. Overall, this research contributes to the exploration and characterization of extremely small bodies specifically through the use of artificial objects, in this case the target marker.

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隼鸟2号扩展任务到快速旋转器1998 KY26的目标标记部署策略

隼鸟二号扩展任务，名为隼鸟二号# （SHARP：小型危险小行星侦察探测器），计划于2031年与快速旋转的小行星1998 KY26会合。隼鸟二号将是有史以来第一次与如此快速旋转的小行星交会的任务，由于其独特的动力环境，这将带来重大挑战。在本文中，我们研究了潜在目标标记（TM）的部署策略，用于着陆和轨道场景，以最大化科学获取。特别是，我们建立了地面和轨道环境模型，以确定可行的目标市场操作，并提出了考虑实际部署误差的着陆点选择策略和候选插入轨道。TM是仅存的两个可部署有效载荷之一，因此，可以在扩展任务阶段发挥关键作用。我们的结果表明，表面操作可能极具挑战性，而轨道操作可以帮助我们获得有关小行星重力场的宝贵信息。总的来说，这项研究有助于通过使用人工物体（在这种情况下是目标标记物）来探索和表征极小的物体。

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

Astrodynamics Engineering-Aerospace Engineering

CiteScore

6.90

自引率

34.40%

发文量

期刊介绍： Astrodynamics is a peer-reviewed international journal that is co-published by Tsinghua University Press and Springer. The high-quality peer-reviewed articles of original research, comprehensive review, mission accomplishments, and technical comments in all fields of astrodynamics will be given priorities for publication. In addition, related research in astronomy and astrophysics that takes advantages of the analytical and computational methods of astrodynamics is also welcome. Astrodynamics would like to invite all of the astrodynamics specialists to submit their research articles to this new journal. Currently, the scope of the journal includes, but is not limited to:Fundamental orbital dynamicsSpacecraft trajectory optimization and space mission designOrbit determination and prediction, autonomous orbital navigationSpacecraft attitude determination, control, and dynamicsGuidance and control of spacecraft and space robotsSpacecraft constellation design and formation flyingModelling, analysis, and optimization of innovative space systemsNovel concepts for space engineering and interdisciplinary applicationsThe effort of the Editorial Board will be ensuring the journal to publish novel researches that advance the field, and will provide authors with a productive, fair, and timely review experience. It is our sincere hope that all researchers in the field of astrodynamics will eagerly access this journal, Astrodynamics, as either authors or readers, making it an illustrious journal that will shape our future space explorations and discoveries.