Curriculum Vitaes
Profile Information
- Affiliation
- Professor, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
- Degree
- 博士(工学)(Mar, 2000, 東京大学)
- Researcher number
- 10342619
- J-GLOBAL ID
- 202101019944115931
- researchmap Member ID
- R000018454
- External link
Major Research Interests
2Major Awards
25-
Apr, 2025
Papers
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AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 24(SLIM特集号) s113-s121, Nov 9, 2025 Peer-reviewed
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AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 24(SLIM特集号) s53-s59, Nov 9, 2025 Peer-reviewedLast author
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AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 24(SLIM特集号) s103-s112, Nov 9, 2025 Peer-reviewed
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Aerospace Technology Japan, 24(SLIM特集号) s37-s43, Nov 9, 2025 Peer-reviewedLast authorSmart Lander for Investigating Moon (SLIM), a small spacecraft with a dry mass of 200 kg, was launched on September 7, 2023 by the H-IIA rocket and made a pinpoint Moon landing on January 19, 2024 (UTC). Precise landing performance was evaluated to be approximately 10 meters or less, much better that the target landing accuracy of 100 meters, realizing the world’s first pinpoint landing. This paper describes the design and manufacturing results including its compact and lightweight technology, and operational results of the SLIM. 1.
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AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 24(SLIM特集号) s91-s102, Nov 9, 2025 Peer-reviewedLast author
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Publications of the Astronomical Society of Japan, 77(5) 1080-1089, Aug 21, 2025Abstract We propose a mission concept, called the space interferometer laboratory voyaging towards innovative applications (SILVIA), designed to demonstrate ultra-precision formation flying between three spacecraft separated by 100 m. SILVIA aims to achieve submicrometer precision in relative distance control by integrating spacecraft sensors, laser interferometry, low-thrust, and low-noise micro-propulsion for real-time measurement and control of distances and relative orientations between spacecraft. A 100 m scale mission in a near-circular low Earth orbit has been identified as an ideal, cost-effective setting for demonstrating SILVIA, as this configuration maintains a good balance between small relative perturbations and low risk of collision. This mission will fill the current technology gap towards future missions, including gravitational wave observatories such as the decihertz interferometer gravitational wave observatory (DECIGO), designed to detect the primordial gravitational-wave background, and high-contrast nulling infrared interferometers such as the large interferometer for exoplanets (LIFE), designed for direct imaging of thermal emissions from nearby terrestrial planet candidates. The mission concept and its key technologies are outlined, paving the way for the next generation of high-precision space-based observatories.
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Acta Astronautica, 236 47-61, Jun 19, 2025 Peer-reviewed
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Acta Astronautica, 235 47-54, May 24, 2025 Peer-reviewedInvitedLead authorCorresponding authorThe Smart Lander for Investigating the Moon (SLIM), with a dry mass of about 200 kg, was launched by the H-IIA vehicle on September 7, 2023, and made a precision lunar landing on January 19, 2024 (Coordinated Universal Time). The landing precision was evaluated to be within ~10 m at an altitude of approximately 50m from the Moon surface, far exceeding the target landing accuracy of 100 m and realizing the world’s first pinpoint landing, although a trouble occurred just before landing and one of the two main engines lost thrust. The two micro/nano rovers of the SLIM separated immediately before landing and successfully captured SLIM images in fully autonomous operation mode. The operation team also obtained spectroscopic observations of rocks from sci- entific instruments onboard the SLIM, which are expected to provide clues on the origin of the Moon. Although not designed to endure the harsh temperatures of the lunar day and night, the lander operated after three lunar nights, gathering various engineering data. This paper reports the results of the lunar landing operations of SLIM
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Journal of Guidance, Control, and Dynamics, 25-29, Mar 11, 2025 Peer-reviewed
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Acta Astronautica, 226(P1) 772-781, Nov 13, 2024 Peer-reviewed
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Aerospace Science and Technology, 155(P1), Sep 23, 2024 Peer-reviewed
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Journal of Evolving Space Activities, 2, Sep 2, 2024 Peer-reviewed
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Journal of Evolving Space Activities, 2, Sep 2, 2024 Peer-reviewed
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Transactions of the Japan Society for Aeronautical and Space Sciences, 67(1) 23-31, Jan 4, 2024 Peer-reviewed
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Transactions of the Japan Society for Aeronautical and Space Sciences, 66(6) 199-208, Nov 4, 2023 Peer-reviewed
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The Journal of the Astronautical Sciences, 69 1726-1743, Nov 11, 2022 Peer-reviewed
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計測自動制御学会論文集, 58(3) 194-201, Apr 7, 2022 Peer-reviewed
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JOURNAL OF SPACECRAFT AND ROCKETS, 59(2) 651-659, Mar 29, 2022 Peer-reviewed
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JOURNAL OF GUIDANCE, CONTROL, AND DYNAMICS, 46(4) 695-708, Feb 1, 2022 Peer-reviewed
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Journal of Guidance, Control, and Dynamics, 45(2) 280-295, Feb 1, 2022 Peer-reviewed
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Transactions of the Society of Instrument and Control Engineers, 58(3) 194-201, 2022
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN, 19(3) 334-343, May 4, 2021 Peer-reviewed
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Proceedings of the International Astronautical Congress, IAC, C4, 2021
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AIAA Propulsion and Energy Forum, 2021, 2021
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Journal of Guidance, Control, and Dynamics, 44(4) 854-861, Dec 1, 2020 Peer-reviewed
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Acta Astronautica, 176(6) 438-454, Nov 1, 2020 Peer-reviewed
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JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 68(2) 89-95, Aug 1, 2020 Peer-reviewed<p>A Fault Detection, Isolation, and Recovery (FDIR) algorithm for attitude control systems is a key technology to increasing the reliability and survivability of spacecraft. Micro/nano interplanetary spacecraft, which are rapidly evolving in recent years, also require robust FDIR algorithms. However, the implementation of FDIR algorithms to these micro/nano spacecraft is difficult because of the limitations of their resources (power, mass, cost, and so on). This paper shows a strategy of how to construct a FDIR algorithm in the limited resources, taking examples from micro deep space probe PROCYON. The strategy focuses on function redundancies and multi-layer FDIR. These ideas are integrated to suit the situation of micro/nano interplanetary spacecraft and demonstrated in orbit by the PROCYON mission. The in-orbit results are discussed in detail to emphasize the effectiveness of the FDIR algorithm. </p>
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Aerospace, 7(97) 97-97, Jul 1, 2020 Peer-reviewedJAXA’s ERG (Exploration of Energization and Radiation in Geospace) Spacecraft, which is nicknamed Arase, was launched on 20 December 2016. Arase is a spin-stabilized and Sun-oriented spacecraft. Its mission is to explore how relativistic electrons in the radiation belts are generated during space storms. Two different on-ground attitude determination algorithms are designed for the mission: A TRIAD-based algorithm that inherits from old missions and a filtering-based new algorithm. This paper, first, discusses the design of the filtering-based attitude determination algorithm, which is mainly based on an Unscented Kalman Filter (UKF), specifically designed for spinning spacecraft (SpinUKF). The SpinUKF uses a newly introduced set of attitude parameters (i.e., spin-parameters) to represent the three-axis attitude of the spacecraft and runs UKF for attitude estimation. The paper then presents the preliminary attitude estimation results for the spacecraft that are obtained after the launch. The results are presented along with the encountered challenges and suggested solutions for them. These preliminary attitude estimation results show that the expected accuracy of the fine attitude estimation for the spacecraft is less than 0.5°.
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ISA Transactions, Sep 1, 2019 Last author
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DESIGN AND DEVELOPMENT OF FIBER OPTIC ROTATION SENSORS, 113-124, Jul 1, 2019
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Proceedings of the International Astronautical Congress, IAC, 2019-, 2019
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Earth, Planets and Space, 70(1) 102, Dec 1, 2018
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Acta Astronautica, 152 299-309, Nov 1, 2018
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航空宇宙技術(Web), 17 69-78, May 1, 2018
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AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 17 45-54, Mar 1, 2018
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AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 17 35-43, Mar 1, 2018<p>SLIM (Smart Lander for Investigating Moon) is the Lunar Landing Demonstrator which is under development at ISAS/JAXA. SLIM demonstrates not only so-called Pin-Point Landing Technique to the lunar surface, but also demonstrates the design to make the explorer small and lightweight. Realizing the compact explorer is one of the key points to achieve the frequent lunar and planetary explorations. This paper summarizes the preliminary system design of SLIM, especially the way to reduce the size.</p>
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航空宇宙技術(Web), 17 61-67, Mar 1, 2018
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Advances in the Astronautical Sciences, 162 1175-1193, 2018
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AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 17 1-9, Jan 1, 2018 Last author
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Journal of Physics: Conference Series, 840(1) 012010-012010, May, 2017 Peer-reviewed
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Proceedings of the International Astronautical Congress, IAC, 2 856-866, 2017
Misc.
46Major Presentations
307-
AIAA SCITECH 2026 Forum, Jan 16, 2026
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AIAA SCITECH 2026 Forum, Jan 12, 2026
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ICMaSS2025, Dec 12, 2025, IMaSS Invited
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International Conference on Space Robotics 2025 (iSpaRo2025), Dec 2, 2025
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International Conference on Space Robotics 2025 (iSpaRo2025), Dec 2, 2025
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76th International Astronautical Congress (IAC), Oct 3, 2025
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Real-time landing guidance for lunar pit exploration: optimizing multi-point scientific observations76th International Astronautical Congress (IAC),, Oct 2, 2025
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The 2nd Space Robotics Workshop at IEEE SMC-IT/SCC 2025, Jul 29, 2025
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35th Workshop on JAXA Astrodynamics Symposium and Flight Mechanics, Jul 29, 2025
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35th International Symposium on Space Technology and Science (ISTS), Jul 16, 2026
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35th International Symposium on Space Technology and Science (ISTS), Jul 16, 2025
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18th International Conference on Space Operations (SpaceOps 2025), May 26, 2025
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Japan Geoscience Union Meeting (JpGU) 2025, Mar 25, 2025
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IEEE Aerospace Conference, Mar 5, 2025
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35th AAS/AIAA Space Flight Mechanics Meeting, Jan 20, 2025
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AIAA Scitech Forum 2025, Jan 9, 2025
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AIAA Scitech Forum 2025, Jan 6, 2025
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31st International Display Workshops (IDW'24), Dec 4, 2024 Invited
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16th International Space Conference of Pacific-basin Societies (ISCOPS), Nov 20, 2024
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16th International Space Conference of Pacific-basin Societies (ISCOPS), Nov 20, 2024
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35th International Photovoltaic Science and Engineering Conference (PVSEC-35), Nov 12, 2024
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35th International Photovoltaic Science and Engineering Conference (PVSEC-35), Nov 12, 2024 Invited
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75th International Astronautical Congress (IAC),, Oct 18, 2024
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75th International Astronautical Congress (IAC),, Oct 18, 2024
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75th International Astronautical Congress (IAC),, Oct 15, 2024
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Asia Oceania Geosciences Society (AOGS) 2024, Jun 26, 2024
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Asia Oceania Geosciences Society (AOGS) 2024, Jun 25, 2024 Invited
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United Nations Committee on the Peaceful Uses of Outer Space, Jun 21, 2024, United Nations Invited
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Japan Geoscience Union Meeting (JpGU) 2024, May 27, 2024 Invited
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The 55th Lunar and Planetary Science Conference (LPSC), Mar 14, 2024
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The 55th Lunar and Planetary Science Conference (LPSC), Mar 14, 2024
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The 55th Lunar and Planetary Science Conference (LPSC), Mar 12, 2024
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34th International Symposium on Space Technology and Science(ISTS), Jun 5, 2023
Research Projects
5-
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, May, 2013 - Mar, 2018
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, 2011 - 2013
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, 2004 - 2008
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科学研究費助成事業, 日本学術振興会, 2005 - 2006
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, 2003 - 2004