Activity

Academic papers and conference presentations on ALE's business activities

ALE's businesses collaborate with experts and laboratories in different academic fields. In cooperation and co-creation with all kinds of partners, we will continue our activities to forge new paths together, driven by our curiosity to enjoy the unknown.

Academic papers

Sky Canvas

  • Double Fail-Safe Attitude Control System for Artificial Meteor Microsatellite ALE-1

    Shinya Fujita, Yuji Sato, Toshinori Kuwahara, Yuji Sakamoto, Yoshihiko Shibuya, Koh Kamachi.
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 19.1 (2021):pp.9-16
    < DOI > https://doi.org/10.2322/tastj.19.9

  • System Design, Development and Ground Verification of a Separable De-Orbit Mechanism for the Orbital Manoeuvre of Micro-satellite ALE-1

    Alperen Pala, Toshinori Kuwahara, Tomoyuki Honda, Hiroki Uto, Tetsuya Kaneko, Adrien Potier, Pasith Tangdhanakanond, Shinya Fujita, Yoshihiko Shibuya, Yuji Sato, Tomomasa Shibuya, Koh Kamachi.
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 19.3 (2021): pp.360-367
    < DOI > https://doi.org/10.2322/tastj.19.360

  • Establishment of the Ground Evaluation and Operational Training System of Artificial Meteor Micro-satellite ALE-1

    Yuji Sato, Shinya Fujita, Toshinori Kuwahara, Tomoyuki Honda, Yuji Sakamoto,Yoshihiko Shibuya, Koh Kamachi.
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 18.3 (2020): pp.84-92
    < DOI > https://doi.org/10.2322/tastj.18.84

  • Design of a MEMS-Mirror-based Laser Pointing Control System of Optical Transponder for Micro-satellite

    Toshinori Kuwahara, Shinya Fujita, Yuji Sato, Shota Suzuki, Lena Okajima.
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 16.3 (2018): pp.285-290
    < DOI > https://doi.org/10.2322/tastj.16.285

  • Evaluation of Artificial Meteor Sources with Arc Heater Wind Tunnel

    Masaki Watanabe, Koki Sakuyama, Hironori Sahara., Soichiro Numata, Shinsuke Abe, Takeo Watanabe, Takayuki Shimoda, Junsei Nagai, Yuta Nojiri, Lena Okajima.
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 14.ists30 (2016): pp.Pf_119-Pf_123.
    < DOI > https://doi.org/10.2322/tastj.14.Pf_119

  • Development of Artificial Meteor for Observation of Upper Atmosphere

    Masaki Watanabe, Hironori Sahara, Shinsuke Abe, Takeo Watanabe, Yuta Nojiri, Lena Okajima.
    Acta Astronautica 121 (2016) pp.172-178.
    < DOI > https://doi.org/10.1016/j.actaastro.2016.01.004

Debris Mitigation

  • Performance of EDT System for Deorbit Devices Using New Materials

    Tsuyoshi Sato, Satomi Kawamoto,Yasushi Ohkawa, Takeo Watanabe, Koh Kamachi, Hiroshi Okubo.
    Acta Astronautica 177 (2020): pp.813-820
    < DOI > https://doi.org/10.1016/j.actaastro.2020.01.029

  • A Study on PMD Device for Microsatellites Using Electrodynamic Tether

    Tsuyosih Sato, Satomi Kawamoto, Takeo Watanabe, Koh Kamachi, Yasushi Ohkawa, Yu Oikawa, Lena Okajima, Hiroshi Okubo.
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 19.1 (2021): pp.61-67
    < DOI > https://doi.org/10.2322/tastj.19.61

Conference Presentations

Sky Canvas

  • Influence of Aerodynamic and Thermal Parameters on an Artificial Meteor Brightness

    Natsumi Kimura, Norihisa Yamashita, Wataru Hirano, Hironori Sahara, Koh Kamachi, Adrien Lemal, Lena Okajima.
    The 62nd Space Sciences and Technology Conference(2018)

  • The Science of Artificial Shooting Stars − New Developments in Meteor Ablation and Meteorological Science

    Homare Matsuyama, Shinsuke Abe, Hironori Sahara, Takeo Watanabe, Takayuki Shimota Koh Kamachi, Adrien Lemal, Lena Okajima.
    The 62nd Space Sciences and Technology Conference(2018)

  • Influence of Aerodynamic and Thermal Parameters on an Artificial Meteor Brightness

    Natsumi Kimura, Hironori Sahara, Adrien Lemal, Koh Kamachi, Lena Okajima.
    Symposium on Dynamics of Space Navigation(2016)

  • Bridging Science and Entertainment with Shooting Stars on Demand

    Lena Okajima, Hironori Sahara, Takeo Watanabe, Shinsuke Abe.
    68th International Astronautical Congress(2017)

  • Fragmentation Process of Meteor Ablation using Arc-heated Wind Tunnel

    Kengo Araki, Taiyo Iwasaki, Kazuhiro Toen, Shinsuke Abe, Hironori Sahara, Lena Okajima.
    The 60th Space Sciences and Technology Conference(2016)

  • Effect of Meteoroids' Strength and Porosity on Meteor Ablation

    Taiyo Iwasaki, Kengo Araki, Kazuhiro Toen, Yuki Konos, Homare Matsuyama, Shinsuke Abe.
    Proceedings of The Space Sciences and Technology Conference 60 (2016): pp.4

  • Various Artificial Meteor Brightnessusing Arc-heated Wind Tunnel

    Norihisa Yamashita, Shinsuke Abe, Lena Okajima , Takayuki Shimota, Taiyo Iwasaki, Kazuhiro Toen, Natsumi Kimura.
    Symposium on Flight Mechanics and Astrodynamics (2016)

  • Fragmentation Process of Meteor Ablation using Arc-heated Wind Tunnel

    Shinsuke Abe, Kengo Araki, Taiyo Iwasaki, Kazuhiro Toen, Yuki Konos, Homare Matsuyama, Lena Okajima.
    Symposium on Flight Mechanics and Astrodynamics (2016)

  • Measurement of Heating Rate of Specimen in Arc Airflow by Slag Type Calorimeter with Different Shapes

    Shogo Asano, Masaki Watanabe, Koki Sakuyama, Hironori Sahara, Soichiro Numata, Kengo Araki, Taiyo Iwasaki, Susumu Koyama, Shoji Kamegawa, Hiroshi Izui, Yoshiki Komiya, Shinsuke Abe, Takeo Watanabe, Takayuki Shimota, Junsei Nagai, Yuta Nojiri, Daisuke Nogami, Lena Okajima.
    Symposium on Flight Mechanics and Astrodynamics (2016)

  • A Study on Meteor Ablation using Arc-heated Wind Tunnel

    Soichiro Numata, Kengo Araki, Taiyo Iwasaki, Susumu Koyama, Shoji Kamegawa, Shinsuke Abe, Hiroshi Izui, Yoshiki Komiya, Masaki Watanabe, Koki Sakuyama, Shogo Asano, Hironori Sahara, Takeo Watabe, Takayuki Shimota, Junsei Nagai, Yuta Nojiri, Daisuke Nogami, Lena Okajima.
    Symposium on Flight Mechanics and Astrodynamics(2016)

  • Artificial Meteor Test towards On-demand Meteor Shower

    Shinsuke Abe, Lena Okajima, Hironori Sahara, Takeo Watanabe, Yuta Nojiri, Tomohiko Nishizono.
    International Meteor Conference Egmond (2016)

  • Artificial Meteor and Chelyabinsk Ablation Test using Arc-heated Wind Tunnel

    Shinsuke Abe, Kengo Araki, Taiyo Iwasaki, Kazuhiro Toen, Hironori Sahara, Takeo Watanabe, Lena Okajima.
    Meteoroids 2016(2016)

  • Fragmentation Process of Meteor Ablation using Arc-heated Wind Tunnel

    Kengo Araki, Shinsuke Abe Soichiro Numata, Taiyo Iwasaki, Susumu Koyama, Shoji Kamegawa, Hiroshi Izui, Yoshiki Komiya, Masaki Watanabe, Koki Sakuyama, Shogo Asano, Hironori Sahara, Takeo Watanabe, Takayuki Shimota, Junsei Nagai, Lena Okajima.
    The 60th Space Sciences and Technology Conference(2016)

  • A Study on Meteor Ablation using Arc-heated Wind Tunnel

    Soichiro Numata, Shoji Kamegawa, Kengo Araki, Taiyo Iwasaki, Susumu Koyama, Shinsuke Abe, Koji Maeda, Masaki Watanabe, Koki Sakuyama, Hironori Sahara, Takeo Watanabe, Takayuki Shimota, Lena Okajima.
    The 60th Space Sciences and Technology Conference(2016)

  • Evaluation of Artificial Meteor Sources with Arc Heater Wind Tunnel

    Masaki Watanabe, Koki Sakuyama, Hironori Sahara, Soichiro Numata, Shinsuke Abe, Takeo Watanabe, Takayuki Shimoda, Junsei Nagai, Yuta Nojiri, Lena Okajima.
    30th International Symposium on Space Technology and Science(2015)

  • Research and Development of Mass Driver for Microsatellite

    Masaki Watanabe, Hironori Sahara, Takeo Watanabe, Shinsuke Abe, Yuta Nojiri, Lena Okajima.
    65th International Astronautical Congress(2014)

  • Evaluation experiment of Prototype Model of a Mass Driver for Space Crafts

    Takeo Watanabe,Fumio Kobayashi, Tomohiko Nishizono, Hironori Sahara, Lena Okajima , Yuta Nojiri, Asuka Takahashi.
    Dynamics and Design Conference 2014(2014)

  • Artificial Meteors Plasma Experiment using the Arc-Heated Wind Tunnel

    Soichiro Numata, Kengo Araki, Taiyo Iwasaki, Shinsuke Abe, Shoji Kamegawa, Hiroshi Izui, Yoshiki Komiya.
    The 58th Space Sciences and Technology Conference(2014)

  • Meteorite and Meteor Ablation Experiment using Arc-heated Wind Tunnel

    Shinsuke Abe, Soichiro Numata, Shoji Kamegawa, Taiyo Iwasaki, Kengo Araki, Yoshiki Komiya, Hiroshi Izui, Masaki Watanabe, Koki Sakuyama, Hironori Sahara, Takayuki Shimota, Junsei Nagai, Lena Okajima.
    Symposium on Flight Mechanics and Astrodynamics(2014)

Debris Mitigation

  • Feasibility study on EDT using tape type tether made of new materials

    Tsuyoshi Sato , Satomi Kawamoto, Takeo Watanabe , Koh Kamachi, Yasushi Ohkawa, Lena Okajima , Hiroshi Ohokubo.
    The 64th Space Sciences and Technology Conference(2020)

  • Development of Foldaway Re-entry assist Tether deployment module "FORTE"-Numerical Analysis of Deployment

    Behavior- Hiroki Sakamoto, Takeo Watanabe.
    The Japan Society of Mechanical Engineers Kanto Branch Kanto Student's Association The 58th Student's Graduation Research Presentation(2019)

  • A Study on Post-Mission Disposal Devices for Microsatellite Using Electrodynamic Tether Technologyfor ALE's Next Generation Mission

    Takeo Watanabe, Hiroki Sakamoto, Tsuyoshi Sato, Satomi Kawamoto, Koh Kamachi, Lena Okajima.
    The 62nd Space Sciences and Technology Conference(2018)

  • A Study on Post-Mission Disposal Devices for Microsatellite Using Electrodynamic Tape Tether Technology

    Takeo Watanabe, Tsuyoshi Sato , Hiroki Sakamoto, Satomi Kawamoto, Yasushi Ohkawa, Koh Kamachi, Lena Okajima.
    The 8th Space Debris Workshop(2018)