Research in trajectory optimization and development of jTOP to enable advanced space mission design.

研究轨迹优化和 jTOP 开发，以实现先进的空间任务设计。

• 批准号: 16K18311
• 负责人: カンパニョーラ ステファノ
• 金额: $ 2.58万
• 依托单位: Japan Aerospace EXploration Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2016
• 资助国家: 日本
• 起止时间: 2016-04-01 至 2017-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16K18311/
• 关键词: Applied Mathematics; Space Science; Artificial Satellite; 応用数学; 宇宙科学; 人工衛星

The past year has witnessed a democratization of space exploration, with CubeSats being awarded a free ticket to the Moon . 13 missions were selected to fly as piggy back on Exploration Mission-1 , the maiden launch of NASA’s new rocket SLS: two of those missions are lead by JAXA, OMOTENASHI and EQUULEUS.The trajectory optimization software jTOP, and its core propagation module jPRO, developed in this KAKENHI grant, are key components of both missions. EQUULEUS will orbit the Largangian points of the Earth-Moon system. One of the main objectives of EQUULEUS is testing the orbit control capabilities of the microsat. jTOP is a main component for this investigation and was also a fundamental tool for the mission proposal, and has been used by several students in The University of Tokyo and ISAS for the mission design.OMOTENASHI is a challenging lunar lander, where the robust trajectory design is coupled with orbit determination and statistical execution errors. In this case, millions of trajectories are computed open loop by jPRO, in a high fidelity, with both impulsive maneuver and continuous thrust.KAKENHI grant was used successfully for the development jTOP and jPRO, which have been used by dozens of master and PhStudents in the last year for their research and for the trajectory design work for both missions. While the new approach has yet to appear in refereed publication, a number of papers have been presented at international conferences, where the main results are achieved by using jTOP.

过去的一年见证了太空探索的民主化，CubeSats获得了一张免费的月球票。13个任务被选中作为探索使命-1的搭载飞行，这是NASA新火箭SLS的首次发射：其中两个任务由JAXA、OMOTENASHI和EQUULEUS领导。在KAKENHI赠款中开发的轨迹优化软件jTOP及其核心传播模块jPRO是这两个任务的关键组成部分。Equuleus将围绕地月系统的Largangian点运行。EQUULEUS的主要目标之一是测试微型卫星的轨道控制能力。jTOP是本次调查的主要组成部分，也是使命提案的基本工具，并已被东京大学和ISAS的几名学生用于使命设计。OMOTENASHI是一个具有挑战性的月球着陆器，其中稳健的轨道设计与轨道确定和统计执行误差相结合。在这种情况下，数百万的轨迹是由jPRO开环计算，在高保真度下，同时具有脉冲机动和连续推力。KAKENHI资助成功地用于开发jTOP和jPRO，在过去的一年中，数十名硕士和博士生已经用于他们的研究和这两个任务的轨迹设计工作。虽然新方法尚未出现在参考出版物中，但已在国际会议上提交了一些论文，其中主要成果是通过使用jTOP实现的。

项目成果

EQUULEUS Mission Analysis: Design of the Transfer Phase

• 发表时间: 2016
• 作者: K. Oshima;S. Campagnola;C. Yam;Yuki Kayama;Y. Kawakatsu;N. Ozaki;Q. Verspieren;K. Kakihara;K. Oguri;R. Funase

OMOTENASHI mission analysis: design of the landing phase

OMOTENASHI 任务分析：着陆阶段的设计

• 发表时间: 2017
• 作者: Javier Hernando-Ayuso;Stefano Campagnola;et al.
• 通讯作者: et al.

Mission Analysis for EQUULEUS and OMOTENASHI

EQUULEUS 和 OMOTENASHI 的任务分析

• 发表时间: 2017
• 作者: Horie M;Saito A;Ohshima M;Suzuki HI;Nagase T.;堀江真史;Masafumi Horie;堀江真史;Stefano Campagnola et al.
• 通讯作者: Stefano Campagnola et al.

OMOTENASHI mission analysis: design of the approach phase,

OMOTENASHI 任务分析：进近阶段的设计，

• 发表时间: 2017
• 作者: Ozawa;Y.;Takahashi;S.;Hernando-Ayuso;J.;Campagnola;S. et al
• 通讯作者: S. et al

“EQUULEUS Mission Analysis: Design of the Science Orbit Phase”

“EQUULEUS 任务分析：科学轨道阶段的设计”

• 发表时间: 2017
• 作者: Kenshiro Oguri