Imai Masataka
| School of Advanced Engineering Department of Applied Physics | Assistant professor |
Career
- Apr. 2026 - Present
Kogakuin University, School of Advanced Engineering Department of Applied Physics, Assistant Professor - Apr. 2021 - Apr. 2023
Kyoto Sangyo University, Faculty of Science, JSPS Research Fellowship for Young Scientists (PD) - Apr. 2023 - Mar. 2026
The University of Tokyo, Graduate School of Science Institute of Astronomy, Project Assistant Professor - Jun. 2018 - Mar. 2021
Advanced Industrial Science and Technology, Artificial Intelligence Research Center, Postdoc - Apr. 2018 - Jun. 2018
Hokkaido University, Graduate School of Science, Research Fellowship for Young Scientists (PD) - Apr. 2015 - Mar. 2018
Hokkaido University, Department of Cosmosciences, Graduate School of Science, Doctor course
Educational Background
Affiliated academic society
IDs
Identifiers
研究者番号：70830389
researchmap会員ID：B000322823
ORCID ID：https://orcid.org/0000-0001-8543-6556
J-Global ID：201801000475116079
Research Field
Research Keyword
Paper
- A GCM study of synoptic-scale vortices in the lower cloud layer on Venus
Masataka Imai; Masahiro Takagi; Hiroki Ando; Hideo Sagawa
Icarus, Jun. 2025 - The University of Tokyo Atacama Observatory 6.5m telescope: project status 2024
Takashi Miyata; Yuzuru Yoshii; Mamoru Doi; Kotaro Kohno; Takeo Minezaki; Kentaro Motohara; Shigeyuki Sako; Fumi Egusa; Itsuki Sakon; Masahiro Konishi; Hidenori Takahashi; Takafumi Kamizuka; Kazuya Matsubayashi; Hiroaki Sameshima; Mitsuyoshi Yamagishi; Masataka Imai; Shuhei Koyama; Takashi Horiuchi; Yuki Hirao; Kosuke Kushibiki; Natsuko Kato; Mizuki Numata; Leonardo Bronfman; Maria T. Ruiz; Rene Mendez; Guido Garay; Andres Escala; Patricio Rojo
Ground-based and Airborne Telescopes X, 11 Sep. 2024, [Reviewed] - The University of Tokyo Atacama Observatory 6.5-m telescope: screen camera system for the telescope mirror alignment
Kazuya Matsubayashi; Emon Kodama; Takeo Minezaki; Hidenori Takahashi; Takashi Horiuchi; Shigeyuki Sako; Takashi Miyata; Yuzuru Yoshii; Mamoru Doi; Kotaro Kohno; Kentaro Motohara; Fumi Egusa; Itsuki Sakon; Masahiro Konishi; Takafumi Kamizuka; Hiroaki Sameshima; Mitsuyoshi Yamagishi; Masataka Imai; Shuhei Koyama; Yuki Hirao; Kosuke Kushibiki; Natsuko Kato; Mizuki Numata
Ground-based and Airborne Telescopes X, 11 Sep. 2024, [Reviewed] - Long‐Term Variability of Mean Winds and Planetary‐Scale Waves Around Venusian Cloud Top Observed With Akatsuki/UVI
Takeshi Horinouchi; Toru Kouyama; Masataka Imai; Shin‐ya Murakami; Yeon Joo Lee; Atsushi Yamazaki; Manabu Yamada; Shigeto Watanabe; Takeshi Imamura; Javier Peralta; Takehiko Satoh
Journal of Geophysical Research: Planets, Mar. 2024, [Reviewed] - Spectroscopic and Imaging Observation of the Venus Atmosphere by a Balloon-Borne Stratospheric Telescope FUJIN-2
Masataka IMAI; Makoto TAGUCHI; Yasuhiro SHOJI; Toshihiko NAKANO; Yukihiro TAKAHASHI; Mitsuteru SATO; Tatsuharu OHNO; Kyoko TANAKA; Shion MORI; Daisuke KOHNO; Ko HAMAMOTO; Seiko TAKAGI
Journal of Evolving Space Activities, Dec. 2023, [Reviewed]
Lead, Corresponding - Formation and Quasi‐Periodic Variation of Equatorial Jet Caused by Planetary‐Scale Waves in the Venusian Lower Cloud Layer
Masahiro Takagi; Hiroki Ando; Masataka Imai; Norihiko Sugimoto; Yoshihisa Matsuda
Journal of Geophysical Research: Planets, Nov. 2023, [Reviewed] - A New Method of Flat-Fleid Calibration for a Pushbroom Sensor by Observing the Moon with Cross-Track Scan.
Toru Kouyama; Masataka Imai; Makiko Hashimoto; Kei Shiomi
IEEE International Geoscience and Remote Sensing Symposium(IGARSS), 2023 - Reflectivity of Venus’s Dayside Disk During the 2020 Observation Campaign: Outcomes and Future Perspectives
Yeon Joo Lee; Antonio García Muñoz; Atsushi Yamazaki; Eric Quémerais; Stefano Mottola; Stephan Hellmich; Thomas Granzer; Gilles Bergond; Martin Roth; Eulalia Gallego-Cano; Jean-Yves Chaufray; Rozenn Robidel; Go Murakami; Kei Masunaga; Murat Kaplan; Orhan Erece; Ricardo Hueso; Petr Kabáth; Magdaléna Špoková; Agustín Sánchez-Lavega; Myung-Jin Kim; Valeria Mangano; Kandis-Lea Jessup; Thomas Widemann; Ko-ichiro Sugiyama; Shigeto Watanabe; Manabu Yamada; Takehiko Satoh; Masato Nakamura; Masataka Imai; Juan Cabrera
The Planetary Science Journal, 01 Sep. 2022, [Reviewed] - A Sensitivity Study of the Thermal Tides in the Venusian Atmosphere: Structures and Dynamical Effects on the Superrotation
Anna Suzuki; Masahiro Takagi; Hiroki Ando; Masataka Imai; Norihiko Sugimoto; Yoshihisa Matsuda
Journal of Geophysical Research: Planets, Jun. 2022, [Reviewed] - Amateur Observers Witness the Return of Venus’ Cloud Discontinuity
Emmanuel (Manos) Kardasis; Javier Peralta; Grigoris Maravelias; Masataka Imai; Anthony Wesley; Tiziano Olivetti; Yaroslav Naryzhniy; Luigi Morrone; Antonio Gallardo; Giovanni Calapai; Joaquin Camarena; Paulo Casquinha; Dzmitry Kananovich; Niall MacNeill; Christian Viladrich; Alexia Takoudi
Atmosphere, 18 Feb. 2022, [Reviewed] - A polarimetric study of asteroids in comet-like orbits
Jooyeon Geem; Masateru Ishiguro; Yoonsoo P. Bach; Daisuke Kuroda; Hiroyuki Naito; Hidekazu Hanayama; Yoonyoung Kim; Yuna G. Kwon; Sunho Jin; Tomohiko Sekiguchi; Ryo Okazaki; Jeremie J. Vaubaillon; Masataka Imai; Tatsuharu Oono; Yuki Futamura; Seiko Takagi; Mitsuteru Sato; Kiyoshi Kuramoto; Makoto Watanabe
Astronomy and Astrophysics, 01 Feb. 2022, [Reviewed] - Polarimetric properties of the near-Sun asteroid (155140) 2005 UD in comparison with other asteroids and meteoritic samples
Masateru Ishiguro; Yoonsoo P. Bach; Jooyeon Geem; Hiroyuki Naito; Daisuke Kuroda; Myungshin Im; Myung Gyoon Lee; Jinguk Seo; Sunho Jin; Yuna G. Kwon; Tatsuharu Oono; Seiko Takagi; Mitsuteru Sato; Kiyoshi Kuramoto; Takashi Ito; Sunao Hasegawa; Fumi Yoshida; Tomoko Arai; Hiroshi Akitaya; Tomohiko Sekiguchi; Ryo Okazaki; Masataka Imai; Katsuhito Ohtsuka; Makoto Watanabe; Jun Takahashi; Maxime Devogèle; Grigori Fedorets; Lauri Siltala; Mikael Granvik
Monthly Notices of the Royal Astronomical Society, 01 Jan. 2022, [Reviewed] - Observation of Cassini’s Entry into Saturn: No Detection, and Lessons Learned
Ralph D. Lorenz; Frank Crary; Laurent Lamy; Peter Jenniskens; Liang Ge; Xi-Liang Zhang; Jian-Yang Li; Masataka Imai; Tatsuharu Ono; Matthew R. Arnison; Lee Spitler
Research Notes of the AAS, 04 Jun. 2021, [Reviewed] - Radiometric Calibration for a Multispectral Sensor Onboard RISESAT Microsatellite Based on Lunar Observations
Masataka Imai; Junichi Kurihara; Toru Kouyama; Toshinori Kuwahara; Shinya Fujita; Yuji Sakamoto; Yuji Sato; Sei-Ichi Saitoh; Takafumi Hirata; Hirokazu Yamamoto; Yukihiro Takahashi
Sensors, 01 Apr. 2021, [Reviewed]
Lead - Lunar Calibration and its Validation for a Multispectral Sensor Onboard Risesat Microsatellite.
Masataka Imai; Junichi Kurihara; Toru Kouyama; Toshinori Kuwahara; Shinya Fujita 0002; Yuji Sakamoto; Sei-Ichi Saitoh; Takafumi Hirata; Hirokazu Yamamoto; Yuji Sato; Yukihiro Takahashi
IEEE International Geoscience and Remote Sensing Symposium(IGARSS), 2021, [Reviewed]
Lead - Inflight Radiometric Calibration for a Multi-Band Sensor Onboard Risesat with the Moon
Masataka Imai; Toru Kouyama; Junichi Kurihara; Toshinori Kuwahara; Shinya Fujita; Yuji Sakamoto; Sei Ichi Saitoh; Takafumi Hirata; Yukihiro Takahashi
International Geoscience and Remote Sensing Symposium (IGARSS), 26 Sep. 2020, [Reviewed]
Lead - VERIFYING RAPID INCREASING OF MEGA-SOLAR PV POWER PLANTS IN JAPAN BY APPLYING A CNN-BASED CLASSIFICATION METHOD TO SATELLITE IMAGES
Toru Kouyama; Nevrez Imamoglu; Masataka Imai; Ryosuke Nakamura
IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, 2020, [Reviewed] - Polarimetric and photometric observations of NEAs; (422699) 2000 PD3 and (3200) Phaethon with the 1.6m Pirka telescope
Ryo Okazaki; Tomohiko Sekiguchi; Masateru Ishiguro; Hiroyuki Naito; Seitaro Urakawa; Masataka Imai; Tatsuharu Ono; Brian D. Warner; Makoto Watanabe
Planetary and Space Science, Jan. 2020, [Reviewed] - Planetary‐Scale Variations in Winds and UV Brightness at the Venusian Cloud Top: Periodicity and Temporal Evolution
Masataka Imai; Toru Kouyama; Yukihiro Takahashi; Atsushi Yamazaki; Shigeto Watanabe; Manabu Yamada; Takeshi Imamura; Takehiko Satoh; Masato Nakamura; Shin‐ya Murakami; Kazunori Ogohara; Takeshi Horinouchi
Journal of Geophysical Research: Planets, 31 Oct. 2019, [Reviewed]
Lead, Corresponding - Constraints on Venus Lightning From Akatsuki's First 3 Years in Orbit
Ralph D. Lorenz; Masataka Imai; Yukihiro Takahashi; Mitsuteru Sato; Atsushi Yamazaki; Takao M. Sato; Takeshi Imamura; Takehiko Satoh; Masato Nakamura
Geophysical Research Letters, 17 Jul. 2019, [Reviewed] - Characteristics Evaluation and Performance Improvement Method of Balloon-Borne Telescope Pointing Control System
Toshihiko NAKANO; Makoto TAGUCHI; Yasuhiro SHOJI; Mao TAKAMURA; Daiki SUNAGUCHI; Masataka IMAI; Makoto WATANABE; Yukihiro TAKAHASHI; Yuji SAKAMOTO; Kazuya YOSHIDA
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN, 2019, [Reviewed] - Discrimination of areas infected with coffee leaf rust using a vegetation index
Naoya Katsuhama; Masataka Imai; Nobuyasu Naruse; Yukihiro Takahashi
Remote Sensing Letters, 02 Dec. 2018, [Reviewed] - Extremely strong polarization of an active asteroid (3200) Phaethon
Takashi Ito; Masateru Ishiguro; Tomoko Arai; Masataka Imai; Tomohiko Sekiguchi; Yoonsoo P. Bach; Yuna G. Kwon; Masanori Kobayashi; Ryo Ishimaru; Hiroyuki Naito; Makoto Watanabe; Kiyoshi Kuramoto
Nature Communications, 01 Dec. 2018, [Reviewed] - Initiation of a lightning search using the lightning and airglow camera onboard the Venus orbiter Akatsuki
Yukihiro Takahashi; Mitsuteru Sato; Masataka Imai; Ralph Lorenz; Yoav Yair; Karen Aplin; Georg Fischer; Masato Nakamura; Nobuaki Ishii; Takumi Abe; Takehiko Satoh; Takeshi Imamura; Chikako Hirose; Makoto Suzuki; George L. Hashimoto; Naru Hirata; Atsushi Yamazaki; Takao M. Sato; Manabu Yamada; Shin-ya Murakami; Yukio Yamamoto; Tetsuya Fukuhara; Kazunori Ogohara; Hiroki Ando; Ko-ichiro Sugiyama; Hiroki Kashimura; Shoko Ohtsuki
Earth, Planets and Space, 25 May 2018, [Reviewed] - Significantly high polarization degree of the very low-albedo asteroid (152679) 1998 KU2
Daisuke Kuroda; Masateru Ishiguro; Makoto Watanabe; Sunao Hasegawa; Tomohiko Sekiguchi; Hiroyuki Naito; Fumihiko Usui; Masataka Imai; Mitsuteru Sato; Kiyoshi Kuramoto
Astronomy & Astrophysics, 16 Mar. 2018, [Reviewed] - Polarimetric Study of Near-Earth Asteroid (1566) Icarus
Masateru Ishiguro; Daisuke Kuroda; Makoto Watanabe; Yoonsoo P. Bach; Jooyeon Kim; Mingyeong Lee; Tomohiko Sekiguchi; Hiroyuki Naito; Katsuhito Ohtsuka; Hidekazu Hanayama; Sunao Hasegawa; Fumihiko Usui; Seitaro Urakawa; Masataka Imai; Mitsuteru Sato; Kiyoshi Kuramoto
The Astronomical Journal, 12 Oct. 2017, [Reviewed] - OISTER optical and near-infrared monitoring observations of peculiar radio-loud active galactic nucleus SDSS J110006.07+442144.3
Tomoki Morokuma; Masaomi Tanaka; Yasuyuki T. Tanaka; Ryosuke Itoh; Nozomu Tominaga; Poshak Gandhi; Elena Pian; Paolo Mazzali; Kouji Ohta; Emiko Matsumoto; Takumi Shibata; Hinako Akimoto; Hiroshi Akitaya; Gamal B. Ali; Tsutomu Aoki; Mamoru Doi; Nana Ebisuda; Ahmed Essam; Kenta Fujisawa; Hideo Fukushima; Shuhei Goda; Yuya Gouda; Hidekazu Hanayama; Yasuhito Hashiba; Osamu Hashimoto; Kenzo Hayashida; Yuichiro Hiratsuka; Satoshi Honda; Masataka Imai; Kanichiro Inoue; Michiko Ishibashi; Ikuru Iwata; Hideyuki Izumiura; Yuka Kanda; Miho Kawabata; Kenji Kawaguchi; Nobuyuki Kawai; Mitsuru Kokubo; Daisuke Kuroda; Hiroyuki Maehara; Hiroyuki Mito; Kazuma Mitsuda; Ryota Miyagawa; Takeshi Miyaji; Yusuke Miyamoto; Kumiko Morihana; Yuki Moritani; Kana Morokuma-Matsui; Kotone Murakami; Katsuhiro L. Murata; Takahiro Nagayama; Kazuki Nakamura; Tatsuya Nakaoka; Kotaro Niinuma; Takafumi Nishimori; Daisaku Nogami; Yumiko Oasa; Tatsunori Oda; Tomohito Ohshima; Yoshihiko Saito; Shuichiro Sakata; Shigeyuki Sako; Yuki Sarugaku; Satoko Sawada-Satoh; Genta Seino; Kazuo Sorai; Takao Soyano; Francesco Taddia; Jun Takahashi; Yuhei Takagi; Katsutoshi Takaki; Koji Takata; Ken’ichi Tarusawa; Makoto Uemura; Takahiro Ui; Riku Urago; Kazutoshi Ushioda; Jun-ichi Watanabe; Makoto Watanabe; Satoshi Yamashita; Kenshi Yanagisawa; Yoshinori Yonekura; Michitoshi Yoshida
Publications of the Astronomical Society of Japan, 01 Sep. 2017, [Reviewed] - Broad-lined Supernova 2016coi with a Helium Envelope
Masayuki Yamanaka; Tatsuya Nakaoka; Masaomi Tanaka; Keiichi Maeda; Satoshi Honda; Hidekazu Hanayama; Tomoki Morokuma; Masataka Imai; Kenzo Kinugasa; Katsuhiro L. Murata; Takefumi Nishimori; Osamu Hashimoto; Hirotaka Gima; Kensuke Hosoya; Ayano Ito; Mayu Karita; Miho Kawabata; Kumiko Morihana; Yuto Morikawa; Kotone Murakami; Takahiro Nagayama; Tatsuharu Ono; Hiroki Onozato; Yuki Sarugaku; Mitsuteru Sato; Daisuke Suzuki; Jun Takahashi; Masaki Takayama; Hijiri Yaguchi; Hiroshi Akitaya; Yuichiro Asakura; Koji S. Kawabata; Daisuke Kuroda; Daisaku Nogami; Yumiko Oasa; Toshihiro Omodaka; Yoshihiko Saito; Kazuhiro Sekiguchi; Nozomu Tominaga; Makoto Uemura; Makoto Watanabe
ASTROPHYSICAL JOURNAL, Mar. 2017, [Reviewed] - 2014–2015 MULTIPLE OUTBURSTS OF 15P/FINLAY
Masateru Ishiguro; Daisuke Kuroda; Hidekazu Hanayama; Yuna Grace Kwon; Yoonyoung Kim; Myung Gyoon Lee; Makoto Watanabe; Hiroshi Akitaya; Koji Kawabata; Ryosuke Itoh; Tatsuya Nakaoka; Michitoshi Yoshida; Masataka Imai; Yuki Sarugaku; Kenshi Yanagisawa; Kouji Ohta; Nobuyuki Kawai; Takeshi Miyaji; Hideo Fukushima; Satoshi Honda; Jun Takahashi; Mikiya Sato; Jeremie J. Vaubaillon; Jun-ichi Watanabe
The Astronomical Journal, 21 Nov. 2016, [Reviewed] - Ground-based observation of the cyclic nature and temporal variability of planetary-scale UV features at the Venus cloud top level
Masataka Imai; Yukihiro Takahashi; Makoto Watanabe; Toru Kouyama; Shigeto Watanabe; Shuhei Gouda; Yuya Gouda
ICARUS, Nov. 2016, [Reviewed]
Lead - X-RAY AND OPTICAL CORRELATION OF TYPE I SEYFERT NGC 3516 STUDIED WITH SUZAKU AND JAPANESE GROUND-BASED TELESCOPES
Hirofumi Noda; Takeo Minezaki; Makoto Watanabe; Mitsuru Kokubo; Kenji Kawaguchi; Ryosuke Itoh; Kumiko Morihana; Yoshihiko Saito; Hikaru Nakao; Masataka Imai; Yuki Moritani; Katsutoshi Takaki; Miho Kawabata; Tatsuya Nakaoka; Makoto Uemura; Koji Kawabata; Michitoshi Yoshida; Akira Arai; Yuhei Takagi; Tomoki Morokuma; Mamoru Doi; Yoichi Itoh; Shin'ya Yamada; Kazuhiro Nakazawa; Yasushi Fukazawa; Kazuo Makishima
ASTROPHYSICAL JOURNAL, Sep. 2016, [Reviewed] - NO EVIDENCE OF INTRINSIC OPTICAL/NEAR-INFRARED LINEAR POLARIZATION FOR V404 CYGNI DURING ITS BRIGHT OUTBURST IN 2015: BROADBAND MODELING AND CONSTRAINT ON JET PARAMETERS
Y. T. Tanaka; R. Itoh; M. Uemura; Y. Inoue; C. C. Cheung; M. Watanabe; K. S. Kawabata; Y. Fukazawa; Y. Yatsu; T. Yoshii; Y. Tachibana; T. Fujiwara; Y. Saito; N. Kawai; M. Kimura; K. Isogai; T. Kato; H. Akitaya; M. Kawabata; T. Nakaoka; K. Shiki; K. Takaki; M. Yoshida; M. Imai; S. Gouda; Y. Gouda; H. Akimoto; S. Honda; K. Hosoya; A. Ikebe; K. Morihana; T. Ohshima; Y. Takagi; J. Takahashi; K. Watanabe; D. Kuroda; T. Morokuma; K. Murata; T. Nagayama; D. Nogami; Y. Oasa; K. Sekiguchi
ASTROPHYSICAL JOURNAL, May 2016, [Reviewed] - AKATSUKI returns to Venus
Masato Nakamura; Takeshi Imamura; Nobuaki Ishii; Takumi Abe; Yasuhiro Kawakatsu; Chikako Hirose; Takehiko Satoh; Makoto Suzuki; Munetaka Ueno; Atsushi Yamazaki; Naomoto Iwagami; Shigeto Watanabe; Makoto Taguchi; Tetsuya Fukuhara; Yukihiro Takahashi; Manabu Yamada; Masataka Imai; Shoko Ohtsuki; Kazunori Uemizu; George L. Hashimoto; Masahiro Takagi; Yoshihisa Matsuda; Kazunori Ogohara; Naoki Sato; Yasumasa Kasaba; Toru Kouyama; Naru Hirata; Ryosuke Nakamura; Yukio Yamamoto; Takeshi Horinouchi; Masaru Yamamoto; Yoshi-Yuki Hayashi; Hiroki Kashimura; Ko-ichiro Sugiyama; Takeshi Sakanoi; Hiroki Ando; Shin-ya Murakami; Takao M. Sato; Seiko Takagi; Kensuke Nakajima; Javier Peralta; Yeon Joo Lee; Junichi Nakatsuka; Tsutomu Ichikawa; Kozaburo Inoue; Tomoaki Toda; Hiroyuki Toyota; Sumitaka Tachikawa; Shinichiro Narita; Tomoko Hayashiyama; Akiko Hasegawa; Yukio Kamata
EARTH PLANETS AND SPACE, May 2016, [Reviewed] - FUJIN-2:Balloon Borne Telescope for Optical Observation of Planets
Yasuhiro SHOJI; Makoto TAGUCHI; Toshihiko NAKANO; Atsunori MAEDA; Masataka IMAI; Yuya GOUDA; Makoto WATANABE; Yukihiro TAKAHASHI; Yuji SAKAMOTO; Kazuya YOSHIDA
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN, 2016, [Reviewed] - OPTICAL AND NEAR-INFRARED POLARIMETRY FOR A HIGHLY DORMANT COMET 209P/LINEAR
Daisuke Kuroda; Masateru Ishiguro; Makoto Watanabe; Hiroshi Akitaya; Jun Takahashi; Sunao Hasegawa; Takahiro Ui; Yuka Kanda; Katsutoshi Takaki; Ryosuke Itoh; Yuki Moritani; Masataka Imai; Shuhei Goda; Yuhei Takagi; Kumiko Morihana; Satoshi Honda; Akira Arai; Hidekazu Hanayama; Takahiro Nagayama; Daisaku Nogami; Yuki Sarugaku; Katsuhiro Murata; Tomoki Morokuma; Yoshihiko Saito; Yumiko Oasa; Kazuhiro Sekiguchi; Jun-ichi Watanabe
ASTROPHYSICAL JOURNAL, Dec. 2015, [Reviewed] - DUST FROM COMET 209P/LINEAR DURING ITS 2014 RETURN: PARENT BODY OF A NEW METEOR SHOWER, THE MAY CAMELOPARDALIDS
Masateru Ishiguro; Daisuke Kuroda; Hidekazu Hanayama; Jun Takahashi; Sunao Hasegawa; Yuki Sarugaku; Makoto Watanabe; Masataka Imai; Shuhei Goda; Hiroshi Akitaya; Yuhei Takagi; Kumiko Morihana; Satoshi Honda; Akira Arai; Kazuhiro Sekiguchi; Yumiko Oasa; Yoshihiko Saito; Tomoki Morokuma; Katsuhiro Murata; Daisaku Nogami; Takahiro Nagayama; Kenshi Yanagisawa; Michitoshi Yoshida; Kouji Ohta; Nobuyuki Kawai; Takeshi Miyaji; Hideo Fukushima; Jun-ichi Watanabe; Cyrielle Opitom; Emmanuel Jehin; Michael Gillon; Jeremie J. Vaubaillon
ASTROPHYSICAL JOURNAL LETTERS, Jan. 2015, [Reviewed] - The Pointing Control Method of Balloon-Borne Telescope Compensating the Motion of Flexible Base
Toshihiko Nakano; Yasuhiro Shoji; Mutsumi Yamamoto; Ko Hamamoto; Jumpei Nakamoto; Masataka Imai; Yuji Sakamoto; Toshinori Kuwahara; Makoto Watanabe; Yukihiro Takahashi; Kazuya Yoshida; Makoto Taguchi
2012 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII), 2012, [Reviewed]
MISC
- Lunar Calibration for a Microsatellite Sensor based on SELENE/SP model
Masataka Imai; Junichi Kurihara; Toru Kouyama
GSICS Quarterly Newsletters, 2022, [Reviewed]
Lead - Deep learning-based video prediction of solar power generation by utilizing all-sky camera
太陽エネルギー, Nov. 2021
Lead, Corresponding - Road to the first star: Venus orbiter from Japan (46) - LAC detected lightning flash in Venus? -
Takahashi Y.; Imai M.; Sato M.
Planetary People - The Japanese Society for Planetary Sciences, Jun. 2021 - Road to the first star : Venus orbiter from Japan(33)Lightning hunt in Venus, to be continued
高橋 幸弘; 今井 正尭; 佐藤 光輝
遊・星・人 = Planetary people : 日本惑星科学会誌, Mar. 2018 - Optical and near-infrared polarimetry for V404 Cyg with 1.6m Pirka and 1.5m Kanata telescopes in Japan
Itoh, R; Watanabe, M; Imai, M; Nakaoka; T. and
The Astronomer's Telegram, Jun. 2015 - Development of the Stratospheric Telescope for Observations of Planets-FUJIN-1-and Evaluation of the Pointing Control System
莊司泰弘; 田口真; 中野壽彦; 前田惇徳; 高橋幸弘; 今井正尭; 仲本純平; 渡辺誠; 合田雄哉; 川原健史; 吉田和哉; 坂本祐二
宇宙航空研究開発機構研究開発報告 JAXA-RR-, Mar. 2014 - 気球搭載望遠鏡による惑星大気観測
2012
Lectures, oral presentations, etc.
- Synoptic-scale vortices in the cloud layer on Venus studied by AFES-Venus GCM
27 May 2025, [Invited] - Synoptic-scale vortices in the lower cloud layer reproduced by AFES-Venus GCM
26 Nov. 2024 - AFES-Venus GCM による金星大気中層における総観規模渦の研究
14 Nov. 2024 - Horizontal structure of Kelvin wave at the Venus cloud top observed by Akatsuki
29 May 2024 - Correlation analysis of Venus mesoscale UV features between 283 nm SO2 and 365 nm unknown absorber bands
25 May 2023 - Heat and angular momentum transport induced by a 5-day transient wave on Venus cloud top
Masataka Imai; Toru Kouyama; Takeshi Horinouchi; Makoto Taguchi
Committee on Space Research 2022, 19 Jul. 2022 - Recent highlights on the Venus science from the Akatsuki mission
Masataka Imai
Committee on Space Research 2022, 17 Jul. 2022 - Horizontal structure of wind and temperature associated with transient waves observed at the cloud top of Venus
30 May 2022 - Comparative analysis of the the Rossby wave at the Venusian cloud top observed by Venus Express/VMC and Akatsuki/UVI
24 Oct. 2019 - Temporal evolution of the planetary-scale UV feature at the Venusian cloud top observed by Akatsuki/UVI
19 Sep. 2019 - Cosmic rays detected by LAC on board Akatsuki
Masataka Imai
International Venus Conference 2019, 02 Jun. 2019 - Continuous monitoring of planetary-scale waves at the Venus cloud top
Masataka Imai
International Venus Conference 2019, 01 Jun. 2019 - Active and inactive behaviors of the planetary-scale waves on Venus cloud top
27 May 2019, [Invited] - Strategy of planetary observation by using RISESAT micro-satellite and ground-based telescopes
Masataka Imai
International Symposium on Lunar and Planetary Science 2018, Jun. 2018 - Long-term monitoring of planetary-scale waves on Venus
Masataka Imai
International Symposium on Lunar and Planetary Science 2018, Jun. 2018 - Long-term observation of planetary-scale waves in the Venus cloud top layer with ground-based telescopes and AKATSUKI/UVI
Masataka Imai
May 2018, [Invited] - Long-term observation of planetary-scale waves at the Venus cloud top
Masataka Imai
Feb. 2018, [Invited] - Measuring the accelerating effect of the planetary-scale waves on Venus observed with UVI/AKATSUKI and ground-based telescopes
Masataka Imai
American Geophysical Union 2017, Dec. 2017 - Measuring the velocity deviation between the movement1 of planetary-scale and mesoscale cloud features using UVI/AKATSUKI images
Masataka Imai
Oct. 2017 - あかつき搭載LACによる金星雷放電捜索の現状
Oct. 2017 - Temporal variation of the Venusian planetary-scale UV features observed by UVI/AKATSUKI
Masataka Imai
May 2017 - Optical ground-based observation of Venusian lightning in 2015
Masataka Imai
Nov. 2016 - 金星雲頂での惑星規模模様の形成と循環周期の地上観測
May 2016 - Ground-based observations of the periodical rotation and temporal variability of the global scale UV-feature
Masataka Imai
International Venus Conference 2016, Apr. 2016 - Exploration for lightning in Venus with LAC onboard AKATSUKI
Masataka Imai
International Venus Conference 2016, Apr. 2016 - あかつき搭載LACによる雷放電発光観測の戦略
Mar. 2016 - Ground-based observations of the cyclic nature and temporal variability of planetary scale UV-features on Venus
Mar. 2016 - Observations of the periodical rotation and temporal variability of the global scale Venusian UV-feature with Pirka telescope
Feb. 2016 - Variability of the propagation periods of the Y-feature on Venus in one Venus year
Masataka Imai
Nov. 2015 - Ground-based measurements of the change in the propagation period of Y-feature on Venus
Masataka Imai
European Planetary Science Congress 2015, Oct. 2015 - 1金星年内で変化する惑星スケール紫外模様の伝搬周期
May 2015 - ピリカ望遠鏡を用いた金星スーパーローテーションに伴う惑星規模雲模様の周期的循環に関する観測
Feb. 2015 - Estimation of the lifetime of the super-rotation's periodicity by mapping the Venusian UV brightness
Nov. 2014 - ピリカ望遠鏡およびVMC/VEX を用いた 紫外撮像による金星スーパーローテーション周期とその時間発展の観測
Sep. 2014 - Investigation of the variability of UV features in Venus atmosphere
Masataka Imai
Asia Oceania Geosciences Society 2018, Jul. 2014 - ピリカ望遠鏡による金星紫外輝度の数ヶ月変動の観測
May 2014 - Observing the time variation of Venusian UV brightness by Pirka telescope
Masataka Imai
Feb. 2014 - ピリカ望遠鏡とVMCによる金星の同時紫外測光の手法開発とスーパーローテーション周期の持つ寿命推定
Nov. 2013 - Estimation of the lifetime of the super-rotation's periodicity by mapping the Venusian UV brightness
Yukihiro Takahashi
Nov. 2013 - Observation of the latitudinal variation and the super-rotation of the Venusian atmosphere in UV with Pirka telescope
Masataka Imai
Asia Oceania Geosciences Society 2013, Jun. 2013 - Observation of the periodicity of cloud rotation in Venus with Pirka telescope
Masataka Imai
May 2013 - ピリカ望遠鏡を用いた紫外測光による金星大気循環周期観測
Oct. 2012 - ピリカ望遠鏡による金星雲の循環周期観測
Oct. 2012
Works
Award
- Jun. 2018
International Symposium on Lunar and Planetary Science, Best Poster Award
Masataka Imai - May 2018
Society of Geomagnetism and Earth, Planetary and Space Sciences, Student Presentation Award (Aurora Medal)
Masataka Imai - May 2016
Japan Geoscience Union, Outstanding Student Presentation Award
Masataka Imai
Research Themes
- 05 Apr. 2021 - 31 Mar. 2026
Identification of UV absorbers and derivation of solar heating rate as driving sources of atmospheric circulation of Venus
Grant-in-Aid for Scientific Research (A), Rikkyo University - 08 Mar. 2023 - 31 Mar. 2024
Variations in Venusian atmospheric super-rotation caused by planetary-scale waves and ultraviolet cloud albedo
Grant-in-Aid for JSPS Fellows - 28 Apr. 2021 - 31 Mar. 2024
Variations in Venusian atmospheric super-rotation caused by planetary-scale waves and ultraviolet cloud albedo
Grant-in-Aid for JSPS Fellows, Kyoto Sangyo University - 01 Apr. 2020 - 31 Mar. 2024
Spatiotemporal variation of planetary lightning activities measured by ground-based telescope and spacecrafts and its relation to atmospheric circulations
Grant-in-Aid for Scientific Research (B), Hokkaido University - 26 Apr. 2017 - 31 Mar. 2019
Understanding of the atmospheric super-rotation on Venus from the ground-based telescope and AKATSUKI coordinate observations
Grant-in-Aid for JSPS Fellows
