Mission to Earth-Moon Lagrange Point by a 6U CubeSat: EQUULEUS
Mission to Earth-Moon Lagrange Point by a 6U CubeSat: EQUULEUS
复制标题
6U CubeSat 地月拉格朗日点任务：EQULEUS
DOI：
10.1109/maes.2019.2955577
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发表时间：
2020
影响因子：
3.6
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
Funase .、Ikari S.、Miyoshi K.、Yano;H.;Hirai;T.;et al.
EQUULEUS（EQUilibriUm Lunar-Earth point 6 U Spacecraft）将是世界上最小的探测地月拉格朗日点的航天器。它由JAXA（日本宇宙航空研究开发机构）和东京大学联合开发，将由NASA的太空发射系统探索使命-1发射。该航天器将飞到地球-月球L2点（EML 2）周围的天平动轨道，并将首次通过纳米级航天器在太阳-地球-月球区域内演示低能自控技术。EQUULEUS还执行三项科学观测任务：利用极紫外线波长对地球等离子体进行成像，在月球远侧进行月球撞击闪光观测，以及在顺月区域进行微流星体通量测量。虽然所有这些任务都有自己的科学目标，但它们也将有助于未来顺月地区的人类活动和/或基础设施发展。航天器系统的大多数部件使用商业现成部件，或根据过去各种空间飞行任务的经验设计，但新开发的水阻力喷射推进系统除外。EQUULEUS使用X波段频率进行深空通信。日本深空天线（64米和34米）名义上将用于航天器的运行，喷气推进实验室深空网络的支持也正在计划之中，特别是在运行的初始阶段。该航天器将在不到一年的时间内飞往EML 2，并将在那里进行科学观测，直到机载推进剂耗尽前不久，届时航天器将离开轨道，以遵守空间碎片规定。
EQUULEUS (EQUilibriUm Lunar-Earth point 6U Spacecraft) will be the world's smallest spacecraft to explore the Earth–Moon Lagrange point. It is being jointly developed by JAXA (Japan Aerospace Exploration Agency) and the University of Tokyo, and will be launched by NASA's Space Launch System Exploration Mission-1. The spacecraft will fly to a libration orbit around the Earth–Moon L2 point (EML2) and will demonstrate low-energy trajectory-control techniques within the Sun—Earth—Moon region for the first time by a nano-class spacecraft. EQUULEUS also carries three scientific observation missions: imaging of Earth's plasmasphere by extreme ultraviolet wavelength, lunar impact flash observation on the far side of the moon, and micrometeoroid flux measurements in the cis-lunar region. While all these missions have their own scientific objectives, they will also contribute to future human activity and/or infrastructure development in the cis-lunar region. Most parts of the spacecraft system use commercial off-the-shelf components, or are designed based on the experiences of various past space missions, with the exception of the newly developed water resistojet propulsion system. EQUULEUS uses X-band frequency for deep space telecommunication. Japanese deep space antennas (64-m and 34-m) will be nominally used for spacecraft operation, and support from the deep space network of JPL (Jet Propulsion Laboratory) is also being planned, especially for the initial phase of operation. The spacecraft will fly to EML2 in less than one year, and will remain there for scientific observations until shortly before the depletion of the onboard propellant, when the spacecraft will leave the orbit for space-debris compliance.