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  2. 阿部 琢美

阿部 琢美

アベ タクミ  (Takumi ABE)

基本情報

所属
国立研究開発法人宇宙航空研究開発機構 宇宙科学研究所 太陽系科学研究系 准教授
総合研究大学院大学（総研大） 物理科学研究科 宇宙科学専攻 准教授
J-GLOBAL ID
200901006137313045
researchmap会員ID
1000253786
外部リンク

研究キーワード

 5

研究分野

 1

経歴

 4

学歴

 3

委員歴

 1

受賞

 1

論文

 81
  • Masatoshi Yamauchi, Johan De Keyser, George Parks, Shin ichiro Oyama, Peter Wurz, Takumi Abe, Arnaud Beth, Ioannis A. Daglis, Iannis Dandouras, Malcolm Dunlop, Pierre Henri, Nickolay Ivchenko, Esa Kallio, Harald Kucharek, Yong C.M. Liu, Ingrid Mann, Octav Marghitu, Georgios Nicolaou, Zhaojin Rong, Takeshi Sakanoi, Joachim Saur, Manabu Shimoyama, Satoshi Taguchi, Feng Tian, Takuo Tsuda, Bruce Tsurutani, Drew Turner, Thomas Ulich, Andrew Yau, Ichiro Yoshikawa
    Experimental Astronomy 54(2-3) 521-559 2022年12月  査読有り
    In the White Paper, submitted in response to the European Space Agency (ESA) Voyage 2050 Call, we present the importance of advancing our knowledge of plasma-neutral gas interactions, and of deepening our understanding of the partially ionized environments that are ubiquitous in the upper atmospheres of planets and moons, and elsewhere in space. In future space missions, the above task requires addressing the following fundamental questions: (A) How and by how much do plasma-neutral gas interactions influence the re-distribution of externally provided energy to the composing species? (B) How and by how much do plasma-neutral gas interactions contribute toward the growth of heavy complex molecules and biomolecules? Answering these questions is an absolute prerequisite for addressing the long-standing questions of atmospheric escape, the origin of biomolecules, and their role in the evolution of planets, moons, or comets, under the influence of energy sources in the form of electromagnetic and corpuscular radiation, because low-energy ion-neutral cross-sections in space cannot be reproduced quantitatively in laboratories for conditions of satisfying, particularly, (1) low-temperatures, (2) tenuous or strong gradients or layered media, and (3) in low-gravity plasma. Measurements with a minimum core instrument package (< 15 kg) can be used to perform such investigations in many different conditions and should be included in all deep-space missions. These investigations, if specific ranges of background parameters are considered, can also be pursued for Earth, Mars, and Venus.
  • Andrew W. Yau, Takumi Abe, Mats André, Andrew D. Howarth, William K. Peterson
    Magnetospheres in the Solar System 207-217 2021年1月1日  査読有り
    The acceleration and transport of high-latitude ionospheric ion outflows, both bulk ion flows and suprathermal ion outflows, play a fundamental role in magnetosphere-ionosphere coupling. Bulk ion flows consist mainly of the polar wind and auroral bulk upflows (with flow energies up to a few eV) in the topside polar ionosphere, which are the primary sources of low-energy H+ and O+ ions, respectively, for various ion acceleration processes at higher altitudes. These processes include perpendicular and parallel acceleration in the mid (~1000-5000 km) or high-altitude auroral zone, which produce suprathermal (~10 eV to ~10 keV) ion outflows such as transversely accelerated ions, ion conics, and ion beams; and centrifugal acceleration in regions of curved or changing magnetic field at high altitudes (above ~3-4 RE). A significant fraction of ion outflows remains cold in the magnetosphere, where their transport is strongly influenced by the interplanetary magnetic field (IMF) and the prevailing convection electric field. This results in a preferential feeding of the dusk plasma sheet under duskward IMF, and a stronger transport to the plasma sheet compared to the magnetotail at times of strong convection.
  • R. Pfaff, M. Larsen, T. Abe, H. Habu, J. Clemmons, H. Freudenreich, D. Rowland, T. Bullett, M. Y. Yamamoto, S. Watanabe, Y. Kakinami, T. Yokoyama, J. Mabie, J. Klenzing, R. Bishop, R. Walterscheid, M. Yamamoto, Y. Yamazaki, N. Murphy, V. Angelopoulos
    Geophysical Research Letters 47(15) 2020年8月16日  
    We investigate the forces and atmosphere-ionosphere coupling that create atmospheric dynamo currents using two rockets launched nearly simultaneously on 4 July 2013 from Wallops Island (USA), during daytime Sq conditions with ΔH of −30 nT. One rocket released a vapor trail observed from an airplane which showed peak velocities of >160 m/s near 108 km and turbulence coincident with strong unstable shear. Electric and magnetic fields and plasma density were measured on a second rocket. The current density peaked near 110 km exhibiting a spiral pattern with altitude that mirrored that of the winds, suggesting the dynamo is driven by tidal forcing. Such stratified currents are obscured in integrated ground measurements. Large electric fields produced a current opposite to that driven by the wind, believed created to minimize the current divergence. Using the observations, we solve the dynamo equation versus altitude, providing a new perspective on the complex nature of the atmospheric dynamo.
  • M. Shiotani, S. Oyama, A. Saito, T. Sakazaki, S. Ochiai, P. Baron, T. Nishibori, M. Suzuki, T. Abe, H. Maezawa
    International Geoscience and Remote Sensing Symposium (IGARSS) 8788-8791 2019年7月  
    The Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) on the International Space Station demonstrated a 4 K mechanical cooler for high-sensitivity submillimeter limb-emission sounding of atmospheric observations. Based on the SMILES heritage, we propose a satellite mission "SMILES-2" to observe temperature and wind fields, and distributions of atmospheric trace gases from the middle atmosphere to the upper atmosphere. We will be able to grasp the 4-D dynamical structure of diurnal variations which are one of the most essential characteristics in the earth's atmosphere. In the upper atmosphere, a transition layer between the atmosphere and the outer space, we will be able to clarify a role of magnetospheric energy inputs from the temperature and wind observations. These outcomes including the atmospheric trace gas data will greatly contribute to improve the reliability of chemistry climate models for future projection and the accuracy of prediction models for space weather.
  • K. Ishisaka, R. Nakamura, T. Mori, T. Abe, A. Kumamoto, M. Tanaka
    2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019 2019年3月  
    © 2019 URSI. All rights reserved. The Sq current system occurs in the lower ionosphere in the winter daytime. The Sq current system is appeared the specific plasma phenomenon such as electron heating, strong electron density disturbance. Therefore it is important to measure directly the DC electric field and the plasma waves in the ionosphere.
もっとみる

MISC

 326
  • Yukihiro Takahashi, Mitsuteru Sato, Masataka Imai, Ralph Lorenz, Yoav Yair, Karen Aplin, Georg Fischer, Masato Nakamura, Nobuaki Ishii, Takumi Abe, Takumi Abe, Takehiko Satoh, Takehiko Satoh, Takeshi Imamura, Chikako Hirose, Makoto Suzuki, George L. Hashimoto, Naru Hirata, Atsushi Yamazaki, 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 70 2018年12月1日  
    © 2018, The Author(s). The existence of lightning discharges in the Venus atmosphere has been controversial for more than 30 years, with many positive and negative reports published. The lightning and airglow camera (LAC) onboard the Venus orbiter, Akatsuki, was designed to observe the light curve of possible flashes at a sufficiently high sampling rate to discriminate lightning from other sources and can thereby perform a more definitive search for optical emissions. Akatsuki arrived at Venus during December 2016, 5 years following its launch. The initial operations of LAC through November 2016 have included a progressive increase in the high voltage applied to the avalanche photodiode detector. LAC began lightning survey observations in December 2016. It was confirmed that the operational high voltage was achieved and that the triggering system functions correctly. LAC lightning search observations are planned to continue for several years.
  • 大早田, 翼, 阿部, 琢美, 渡部, 重十, 三宅, 亙, Oohayata, Tsubasa, Abe, Takumi, Watanabe, Shigeto, Miyake, Wataru
    観測ロケットシンポジウム2018 講演集 = Proceedings of Sounding Rocket Symposium 2018 2018年7月  
    第1回観測ロケットシンポジウム（2018年7月17日-18日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県 1st Sounding Rocket Symposium (July 17-18, 2018. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000127027 レポート番号: Ⅶ-2
  • 渡部, 重十, 阿部, 琢美, 山本, 真行, 羽生, 宏人, Andrew, Yau, 山本, 衛, 石坂, 圭吾, 熊本, 篤志, Bernhardt, Paul, 高橋, 隆男, 田中, 真, Watanabe, Shigeto, Abe, Takumi, Yamamoto, Masa-Yuki, Habu, Hiroto, Yamamoto, Mamoru, Ishisaka, Keigo, Kumamoto, Atsushi, Takahashi, Takao, Tanaka, Makoto
    観測ロケットシンポジウム2018 講演集 = Proceedings of Sounding Rocket Symposium 2018 2018年7月  
    第1回観測ロケットシンポジウム（2018年7月17日-18日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県著者人数: 11名資料番号: SA6000127004レポート番号: Ⅱ-2
  • 阿部, 琢美, 齋藤, 義文, 横田, 勝一郎, Abe, Takumi, Saito, Yoshifumi, Yokota, Shoichiro
    観測ロケットシンポジウム2018 講演集 = Proceedings of Sounding Rocket Symposium 2018 2018年7月  
    第1回観測ロケットシンポジウム（2018年7月17日-18日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県資料番号: SA6000127023レポート番号: Ⅵ-4
  • 大早田, 翼, 阿部, 琢美, 三宅, 亙, Oohayata, Tsubasa, Abe, Takumi, Miyake, Wataru
    平成29年度宇宙科学に関する室内実験シンポジウム 講演集 = Proceedings of 2018 Symposium on Laboratory Experiment for Space Science 2018年2月  
    平成29年度宇宙科学に関する室内実験シンポジウム (2018年2月26日-27日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県 2018 Symposium on Laboratory Experiment for Space Science (February 26-27, 2018. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000123011
  • 阿部, 琢美, Abe, Takumi
    平成29年度宇宙科学に関する室内実験シンポジウム 講演集 = Proceedings of 2018 Symposium on Laboratory Experiment for Space Science 2018年2月  
    平成29年度宇宙科学に関する室内実験シンポジウム (2018年2月26日-27日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県 2018 Symposium on Laboratory Experiment for Space Science (February 26-27, 2018. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000123013
  • 大早田翼, 阿部琢美, 渡部重十, 三宅亙
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 144th 2018年  
  • 大早田翼, 阿部琢美, 三宅亙
    日本地球惑星科学連合大会予稿集(Web) 2018 2018年  
  • 田寺慶樹, 阿部琢美, 三宅亙
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 144th 2018年2月  
    平成29年度宇宙科学に関する室内実験シンポジウム (2018年2月26日-27日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県 2018 Symposium on Laboratory Experiment for Space Science (February 26-27, 2018. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000123010
  • 中村龍一郎, 三宅壮聡, 石坂圭吾, 阿部琢美, 熊本篤志, 田中真
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 144th 2018年  
  • 森俊樹, 石坂圭吾, 阿部琢美, 田中真, 熊本篤志
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 144th 2018年  
  • 阿部琢美, 渡部重十, 齊藤昭則
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 144th 2018年  
  • 芦原佑樹, 山本衛, 石坂圭吾, 熊本篤志, 白澤秀剛, 阿部琢美
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 144th 2018年11月  
  • Kazunori Ogohara, Masahiro Takagi, Shin ya Murakami, Takeshi Horinouchi, Manabu Yamada, Toru Kouyama, George L. Hashimoto, Takeshi Imamura, Yukio Yamamoto, Hiroki Kashimura, Naru Hirata, Naoki Sato, Atsushi Yamazaki, Takehiko Satoh, Naomoto Iwagami, Makoto Taguchi, Shigeto Watanabe, Takao M. Sato, Shoko Ohtsuki, Tetsuya Fukuhara, Masahiko Futaguchi, Takeshi Sakanoi, Shingo Kameda, Ko ichiro Sugiyama, Hiroki Ando, Yeon Joo Lee, Masato Nakamura, Makoto Suzuki, Chikako Hirose, Nobuaki Ishii, Takumi Abe
    Earth, Planets and Space 69 2017年12月1日  
    © 2017, The Author(s). We provide an overview of data products from observations by the Japanese Venus Climate Orbiter, Akatsuki, and describe the definition and content of each data-processing level. Levels 1 and 2 consist of non-calibrated and calibrated radiance (or brightness temperature), respectively, as well as geometry information (e.g., illumination angles). Level 3 data are global-grid data in the regular longitude–latitude coordinate system, produced from the contents of Level 2. Non-negligible errors in navigational data and instrumental alignment can result in serious errors in the geometry calculations. Such errors cause mismapping of the data and lead to inconsistencies between radiances and illumination angles, along with errors in cloud-motion vectors. Thus, we carefully correct the boresight pointing of each camera by fitting an ellipse to the observed Venusian limb to provide improved longitude–latitude maps for Level 3 products, if possible. The accuracy of the pointing correction is also estimated statistically by simulating observed limb distributions. The results show that our algorithm successfully corrects instrumental pointing and will enable a variety of studies on the Venusian atmosphere using Akatsuki data.
  • Takehiko Satoh, Takehiko Satoh, Takao M. Sato, Masato Nakamura, Yasumasa Kasaba, Munetaka Ueno, Makoto Suzuki, George L. Hashimoto, Takeshi Horinouchi, Takeshi Imamura, Atsushi Yamazaki, Takayuki Enomoto, Yuri Sakurai, Kosuke Takami, Kenta Sawai, Takashi Nakakushi, Takumi Abe, Nobuaki Ishii, Chikako Hirose, Naru Hirata, Manabu Yamada, Shin Ya Murakami, Yukio Yamamoto, Tetsuya Fukuhara, Kazunori Ogohara, Hiroki Ando, Ko Ichiro Sugiyama, Hiroki Kashimura, Shoko Ohtsuki
    Earth, Planets and Space 69(1) 2017年12月1日  
    © 2017 The Author(s). The first year (December 2015 to November 2016) of IR2 after Akatsuki&#039;s successful insertion to an elongated elliptical orbit around Venus is reported with performance evaluation and results of data acquisition. The single-stage Stirling-cycle cryo-cooler of IR2 has been operated with various driving voltages to achieve the best possible cooling under the given thermal environment. A total of 3091 images of Venus (1420 dayside images at 2.02 μm and 1671 night-side images at 1.735, 2.26, and 2.32 μm) were acquired in this period. Additionally, 159 images, including images of stars for calibration and dark images for the evaluation of noise levels, were captured. Low-frequency flat images (not available in pre-launch calibration data) have been constructed using the images of Venus acquired from near the pericenter to establish the procedure to correct for the IR2 flat-field response. It was noticed that multiple reflections of infrared light in the PtSi detector caused a weak but extended tail of the point-spread function (PSF), contaminating the night-side disk of Venus with light from the much brighter dayside crescent. This necessitated the construction of an empirical PSF to remove this contamination and also to improve the dayside data by deconvolution, and this work is also discussed. Detailed astrometry is performed on star-field images in the H-band (1.65 μm), hereby confirming that the geometrical distortion of IR2 images is negligible.
  • 阿部, 琢美, 田寺, 慶樹, Abe, Takumi
    平成28年度宇宙科学に関する室内実験シンポジウム 講演集 = Proceedings of 2017 Symposium on Laboratory Experiment for Space Science 2017年2月  
    平成28年度宇宙科学に関する室内実験シンポジウム (2017年2月27日-28日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県 2017 Symposium on Laboratory Experiment for Space Science (February 27-28, 2017. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000095012
  • 山本淳史, 石坂圭吾, 田中真, 山本衛, 阿部琢美
    電気関係学会北陸支部連合大会講演論文集(CD-ROM) 2017 2017年  
  • 岡大貴, 石坂圭吾, 阿部琢美, 熊本篤志
    電気関係学会北陸支部連合大会講演論文集(CD-ROM) 2017 2017年  
  • 岡大貴, 石坂圭吾, 阿部琢美, 熊本篤志
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 142nd 2017年  
  • 田寺慶樹, 阿部琢美, 三宅亙
    東海大学紀要 工学部(Web) 57(2) 2017年  
  • 阿部琢美
    日本地球惑星科学連合大会予稿集(Web) 2017 2017年  
  • 山本淳史, 石坂圭吾, 田中真, 山本衛, 阿部琢美
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 142nd 2017年  
  • 阿部, 琢美, 石坂, 圭吾, 熊本, 篤志, 田中, 真, 松下, 拓輝, 吉川, 顕正, Abe, Takumi, Ishisaka, Keigo, Kumamoto, Atsushi, Tanaka, Makoto, Matsushita, Hiroki, Yoshikawa, Akimasa
    第30回大気圏シンポジウム: 講演集録 = Proceedings of the 30th Atmospheric Science Symposium 2016年12月  
    第30回大気圏シンポジウム（2016年12月5日-6日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県 30th Atmospheric Science Symposium (December 5-6, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000062034 レポート番号: VI-6
  • 渡部, 重十, 山本, 真行, 柿並, 義宏, 阿部, 琢美, 羽生, 宏人, 山本, 衛, Larsen, M., Watanabe, Shigeto, Yamamoto, Masa-yuki, Kakinami, Yoshihiro, Abe, Takumi, Habu, Hiroto, Yamamoto, Mamoru
    第30回大気圏シンポジウム: 講演集録 = Proceedings of the 30th Atmospheric Science Symposium 2016年12月  
    第30回大気圏シンポジウム（2016年12月5日-6日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県資料番号: SA6000062001レポート番号: I-1
  • 今村, 剛, 安藤, 紘基, 阿部, 琢美, 岩田, 隆浩, 村田, 泰宏, 竹内, 央, 野田, 寛大, 二穴, 喜文, 野口, 克行, Hausler, Bernd, Patzold, Martin, Tellmann, Silvia, あかつきプロジェクト, Imamura, Takeshi, Ando, Hiroki, Abe, Takumi, Iwata, Takahiro, Murata, Yasuhiro, Takeuchi, Hiroshi, Noda, Hirotomo, Futaana, Yoshifumi, Noguchi, Katsuyuki, AKATSUKI, Project
    第30回大気圏シンポジウム: 講演集録 = Proceedings of the 30th Atmospheric Science Symposium 2016年12月  
    第30回大気圏シンポジウム（2016年12月5日-6日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県著者人数: 12名ほか資料番号: SA6000062035レポート番号: VII-1
  • Takeshi Morimoto, Hiroshi Kikuchi, Mitsuteru Sato, Tomoo Ushio, Atsushi Yamazaki, Makoto Suzuki, Ryohei Ishida, Yuji Sakamoto, Kazuya Yoshida, Yasuhide Hobara, Takuki Sano, Takumi Abe, Zen Ichiro Kawasaki
    Earth, Planets and Space 68(1) 2016年12月1日  
    © 2016 The Author(s). The Global Lightning and sprIte MeasurementS (GLIMS) mission has been conducted at the Exposed Facility of Japanese Experiment Module (JEM-EF) of the International Space Station for more than 30 months. This paper focuses on an electromagnetic (EM) payload of JEM-GLIMS mission, the very high frequency (VHF) broadband digital InTerFerometer (VITF). The JEM-GLIMS mission is designed to conduct comprehensive observations with both EM and optical payloads for lightning activities and related transient luminous events. Its nominal operation continued from November 2012 to December 2014. The extended operation followed for eight months. Through the operation period, the VITF collected more than two million VHF EM waveforms in almost 18,700 datasets. The number of VITF observations synchronized with optical signal is 8049. Active VHF radiations are detected in about 70 % of optical observations without obvious regional or seasonal dependency. Estimations of the EM direction-of-arrival (DOA) are attempted using the broadband digital interferometry. Some results agree with the optical observations, even though DOA estimation is problematic because of a very short antenna baseline and multiple pulses over a short time period, namely burst-type EM waveforms. The world's first lightning observations by means of space-borne VHF interferometry are achieved in this mission. This paper summarizes VITF instruments, the recorded VHF EM signals, and the results of DOA estimations by means of digital interferometry as a preliminary report after termination of the mission.
  • 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 68 2016年12月1日  
    © 2016 Nakamura et al. AKATSUKI is the Japanese Venus Climate Orbiter that was designed to investigate the climate system of Venus. The orbiter was launched on May 21, 2010, and it reached Venus on December 7, 2010. Thrust was applied by the orbital maneuver engine in an attempt to put AKATSUKI into a westward equatorial orbit around Venus with a 30-h orbital period. However, this operation failed because of a malfunction in the propulsion system. After this failure, the spacecraft orbited the Sun for 5 years. On December 7, 2015, AKATSUKI once again approached Venus and the Venus orbit insertion was successful, whereby a westward equatorial orbit with apoapsis of ∼440,000 km and orbital period of 14 days was initiated. Now that AKATSUKI&#039;s long journey to Venus has ended, it will provide scientific data on the Venusian climate system for two or more years. For the purpose of both decreasing the apoapsis altitude and avoiding a long eclipse during the orbit, a trim maneuver was performed at the first periapsis. The apoapsis altitude is now ~360,000 km with a periapsis altitude of 1000-8000 km, and the period is 10 days and 12 h. In this paper, we describe the details of the Venus orbit insertion-revenge 1 (VOI-R1) and the new orbit, the expected scientific information to be obtained at this orbit, and the Venus images captured by the onboard 1-μm infrared camera, ultraviolet imager, and long-wave infrared camera 2 h after the successful initiation of the VOI-R1.
  • 阿部, 琢美, 石坂, 圭吾, 熊本, 篤志, 田中, 真, 松下, 拓輝, 吉川, 顕正, Abe, Takumi, Ishisaka, Keigo, Kumamoto, Atsushi, Tanaka, Makoto, Yoshikawa, Akimasa
    大気球シンポジウム: 平成28年度 = Balloon Symposium: 2016 2016年11月  
    大気球シンポジウム 平成28年度（2016年11月1-2日. 宇宙航空研究開発機構宇宙科学研究所 (JAXA)(ISAS)）, 相模原市, 神奈川県 Balloon Symposium 2016 (November 1-2, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000057012 レポート番号: isas16-sbs-012
  • 阿部, 琢美, 坂本, 優美花, Abe, Takumi, Sakamoto, Yumika
    第29回大気圏シンポジウム: 講演集録 = Proceedings of the 29th Atmospheric Science Symposium 2016年3月  
    第29回大気圏シンポジウム（2016年3月7日-8日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県 29th Atmospheric Science Symposium (March 7-8, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000051049 レポート番号: VI-5
  • 石坂, 圭吾, 安宅, 祐香, 阿部, 琢美, 坂本, 優美花, 熊本, 篤志, 高橋, 隆男, 田中, 真, 澤井, 萌, 吉川, 顕正, 松下, 拓輝, Keigo, Ishisaka, Yuka, Ataka, Takumi, Abe, Yumika, Sakamoto, Atsushi, Kumamoto, Takao, Takahashi, Makoto, Tanaka, Moe, Sawai, Yoshikawa, Akimasa
    第29回大気圏シンポジウム: 講演集録 = Proceedings of the 29th Atmospheric Science Symposium 2016年3月  
    第29回大気圏シンポジウム（2016年3月7日-8日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県 29th Atmospheric Science Symposium (March 7-8, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000051048 レポート番号: VI-4
  • 坂本, 優美花, 阿部, 琢美, 三宅, 亙, Sakamoto, Yumika, Abe, Takumi, Miyake, Wataru
    第29回大気圏シンポジウム: 講演集録 = Proceedings of the 29th Atmospheric Science Symposium 2016年3月  
    第29回大気圏シンポジウム（2016年3月7日-8日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県 29th Atmospheric Science Symposium (March 7-8, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000051034 レポート番号: V-8
  • 石坂, 圭吾, 安宅, 祐香, 阿部, 琢美, Ishisaka, Keigo, Ataka, Yuka, Abe, Takumi
    平成27年度宇宙科学に関する室内実験シンポジウム 講演集 = Proceedings of 2016 Symposium on Laboratory Experiment for Space Science 2016年2月  
    平成27年度宇宙科学に関する室内実験シンポジウム (2016年2月23日-24日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県 2016 Symposium on Laboratory Experiment for Space Science (July 23-24, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 書面発表 資料番号: SA6000055050
  • 阿部, 琢美, 坂本, 優美花, Abe, Takumi, Sakamoto, Yumika
    平成27年度宇宙科学に関する室内実験シンポジウム 講演集 = Proceedings of 2016 Symposium on Laboratory Experiment for Space Science 2016年2月  
    平成27年度宇宙科学に関する室内実験シンポジウム (2016年2月23日-24日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県 2016 Symposium on Laboratory Experiment for Space Science (July 23-24, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000055011
  • 宮崎, 貴大, Sri, Sumantyo Josaphat Tetuko, 小山, 孝一郎, 阿部, 琢美, 中園, 智幸, 児玉, 哲哉, Oyama, Kohichiro, Abe, Takumi, Nakazono, Tomoyuki, Kodama, Tetsuya
    平成27年度宇宙科学に関する室内実験シンポジウム 講演集 = Proceedings of 2016 Symposium on Laboratory Experiment for Space Science 2016年2月  
    平成27年度宇宙科学に関する室内実験シンポジウム (2016年2月23日-24日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県 2016 Symposium on Laboratory Experiment for Space Science (July 23-24, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000055009
  • 山本淳史, 石坂圭吾, 田中真, 山本衛, 阿部琢美
    電気関係学会北陸支部連合大会講演論文集(CD-ROM) 2016 2016年  
  • 岡大貴, 石坂圭吾, 阿部琢美, 熊本篤志
    電気関係学会北陸支部連合大会講演論文集(CD-ROM) 2016 2016年  
  • 岡大貴, 石坂圭吾, 阿部琢美, 熊本篤志
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 140th 2016年  
  • 阿部琢美, MOEN Joran
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 140th 2016年  
  • 坂本優美花, 阿部琢美, 三宅亙
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 140th 2016年  
  • 坂本優美花, 阿部琢美, 三宅亙
    日本地球惑星科学連合大会予稿集(Web) 2016 2016年  
  • 山本淳史, 石坂圭吾, 田中真, 山本衛, 阿部琢美
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 140th 2016年  
  • 安宅祐香, 石坂圭吾, 阿部琢美, 田中真, 熊本篤志, 吉川顕正, 松下拓輝
    電気関係学会北陸支部連合大会講演論文集(CD-ROM) 2016 2016年  
  • 安宅祐香, 石坂圭吾, 阿部琢美, 田中真, 熊本篤志, 吉川顕正, 松下拓輝
    地球電磁気・地球惑星圏学会総会及び講演会(Web) 140th 2016年3月  
    第29回大気圏シンポジウム（2016年3月7日-8日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県 29th Atmospheric Science Symposium (March 7-8, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 資料番号: SA6000051033 レポート番号: V-7
  • 阿部琢美, 石坂圭吾, 熊本篤志, 田中真, 高橋隆男, 松下拓輝, 吉川顕正
    日本地球惑星科学連合大会予稿集(Web) 2016 2016年  
  • 安宅祐香, 石坂圭吾, 阿部琢美, 田中真, 熊本篤志, 吉川顕正, 松下拓輝
    日本地球惑星科学連合大会予稿集(Web) 2016 2016年  
  • Masato Nakamura, Nobuaki Ishii, Takeshi Imamura, Takehiko Satoh, Takumi Abe, Chikako Hirose, Atsushi Yamazaki, Junichi Nakatsuka, Tsutomu Ichikawa, Tomoaki Toda, Hiroyuki Toyoda, Sumitaka Tachikawa, Yukio Kamata, Makoto Suzuki, Takao M. Sato, Shin Ya Murakami, Yukio Yamamoto, Naomoto Iwagami, Makoto Taguchi, Tesuya Fukuhara, Shigeto Watanabe, Yukihiro Takahashi, Munetaka Ueno, Manabu Yamada, George L. Hashimoto, Naru Hirata, Toru Kouyama, Kazunori Ogohara, Hiroki Ando, Koichiro Sugiyama, Hiroki Kashimura, Shoko Ohtsuki
    Proceedings of the International Astronautical Congress, IAC 2016年1月1日  
    Copyright © 2016 by the International Astronautical Federation (IAF). All rights reserved. Japan&#039;s Venus Climate Orbiter Akatsuki was proposed to ISAS (Institute of Space and Astronautical Science) in 2001 as an interplanetary mission. We made 5 cameras with narrow-band filters to image Venus at different wavelengths to track the cloud and minor components distribution at different heights to study the Venusian atmospheric dynamics in 3 dimension. It was launched on May 21st, 2010 and reached Venus on December 7th, 2010. With the thrust by the orbital maneuver engine, Akatsuki tried to go into the westward equatorial orbit around Venus with the 30 hours&#039; orbital period, however it failed by the malfunction of the propulsion system. Later the spacecraft has been orbiting the sun for 5 years. On December 7th, 2015 Akatsuki met Venus again after the orbit control and Akatsuki was put into the westward equatorial orbit whose apoapsis is about 0.44 million km and orbital period of 14 days. Its main target is to shed light on the mechanism of the fast atmospheric circulation of Venus. The systematic imaging sequence by Akatsuki is advantageous for detecting meteorological phenomena with various temporal and spatial scales. We have five photometric sensors as mission instruments for imaging, which are 1 m-infrared camera (IR1), 2 m-infrared camera (IR2), ultra-violet imager (UVI), long-wave infrared camera (LIR), and lightning and airglow camera (LAC). These photometers except LIR have changeable filters in the optics to image in certain wavelengths. Akatsuki&#039;s long elliptical orbit around Venus is suitable for obtaining cloud-tracked wind vectors over a wide area continuously from high altitudes. With the observation, the characterizations of the meridional circulation, mid-latitude jets, and various wave activities are anticipated. The technical issues of Venus orbit insertion in 2015 and the scientific new results will be given in this paper.
  • 栗原純一, 岩上直幹, 高橋隆男, 石坂圭吾, 熊本篤志, 阿部琢美, 松岡彩子, 石井守, 栗原宜子, 野村麗子
    プラズマ・核融合学会誌 92(4) 251-258 2016年4月25日  
  • 牛尾知雄, 佐藤光輝, 鈴木睦, 森本健志, 菊池博史, 菊池雅行, 足立透, 山崎敦, 高橋幸弘, INAN U., LINSCOTT I., 石田良平, 坂本祐二, 吉田和哉, 芳原容英, 阿部琢己, 中村正人, 織田裕久
    日本気象学会大会講演予稿集 (108) 2015年  
  • 坂本優美花, 阿部琢美, 三宅亙
    地球電磁気・地球惑星圏学会総会及び講演会予稿集(CD-ROM) 138th 2015年  
  • 阿部琢美
    地球電磁気・地球惑星圏学会総会及び講演会予稿集(CD-ROM) 138th 2015年  

書籍等出版物

 2

講演・口頭発表等

 111
もっとみる

担当経験のある科目(授業)

 1

所属学協会

 3

Works(作品等)

 2

共同研究・競争的資金等の研究課題

 14
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● 指導学生等の数

 2
  • 年度
    2021年度(FY2021)
    修士課程学生数
    4
    受託指導学生数
    4
    技術習得生の数
    1
  • 年度
    2020年度(FY2020)
    修士課程学生数
    3
    受託指導学生数
    3
    技術習得生の数
    2

● 専任大学名

 1
  • 専任大学名
    総合研究大学院大学（SOKENDAI)

● 所属する所内委員会

 3
  • 所内委員会名
    理学委員会
  • 所内委員会名
    観測ロケット専門委員会
  • 所内委員会名
    スペースチェンバー専門委員会
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