7. Planetary science

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  1. Frontier Letter

    Performance of Akatsuki/IR2 in Venus orbit: the first year

    The first year (December 2015 to November 2016) of IR2 after Akatsuki’s successful insertion to an elongated elliptical orbit around Venus is reported with performance evaluation and results of data acquisitio...

    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…

    Earth, Planets and Space 2017 69:154

    Published on: 3 November 2017

  2. Full paper

    Absolute calibration of brightness temperature of the Venus disk observed by the Longwave Infrared Camera onboard Akatsuki

    The Venus Climate Orbiter Akatsuki arrived at Venus in December 2015, and the Longwave Infrared Camera (LIR) onboard the spacecraft started making observations. LIR has acquired more than 8000 images during th...

    Tetsuya Fukuhara, Makoto Taguchi, Takeshi Imamura, Akane Hayashitani, Takeru Yamada, Masahiko Futaguchi, Toru Kouyama, Takao M. Sato, Mao Takamura, Naomoto Iwagami, Masato Nakamura, Makoto Suzuki, Munetaka Ueno, George L. Hashimoto, Mitsuteru Sato, Seiko Takagi…

    Earth, Planets and Space 2017 69:141

    Published on: 6 October 2017

  3. Full paper

    Initial performance of the radio occultation experiment in the Venus orbiter mission Akatsuki

    After the arrival of Akatsuki spacecraft of Japan Aerospace Exploration Agency at Venus in December 2015, the radio occultation experiment, termed RS (Radio Science), obtained 19 vertical profiles of the Venus...

    Takeshi Imamura, Hiroki Ando, Silvia Tellmann, Martin Pätzold, Bernd Häusler, Atsushi Yamazaki, Takao M. Sato, Katsuyuki Noguchi, Yoshifumi Futaana, Janusz Oschlisniok, Sanjay Limaye, R. K. Choudhary, Yasuhiro Murata, Hiroshi Takeuchi, Chikako Hirose, Tsutomu Ichikawa…

    Earth, Planets and Space 2017 69:137

    Published on: 3 October 2017

  4. Full paper

    An evaluation method of reflectance spectra to be obtained by Hayabusa2 Near-Infrared Spectrometer (NIRS3) based on laboratory measurements of carbonaceous chondrites

    We conducted ground-based performance evaluation tests of the Near-Infrared Spectrometer (NIRS3) onboard Hayabusa2 spacecraft in November 2013 and from April to May 2014 and established a method for evaluating...

    Moe Matsuoka, Tomoki Nakamura, Takahito Osawa, Takahiro Iwata, Kohei Kitazato, Masanao Abe, Yusuke Nakauchi, Takehiko Arai, Mutsumi Komatsu, Takahiro Hiroi, Naoya Imae, Akira Yamaguchi and Hideyasu Kojima

    Earth, Planets and Space 2017 69:120

    Published on: 4 September 2017

  5. Frontier Letter

    Volcanic activity on Io and its influence on the dynamics of the Jovian magnetosphere observed by EXCEED/Hisaki in 2015

    Jupiter’s moon Io, which orbits deep inside the magnetosphere, is the most geologically active object in the solar system. Kurdalagon Patera, a volcano on Io, erupted in 2015 and became a substantial source of...

    Ichiro Yoshikawa, Fumiharu Suzuki, Reina Hikida, Kazuo Yoshioka, Go Murakami, Fuminori Tsuchiya, Chihiro Tao, Atsushi Yamazaki, Tomoki Kimura, Hajime Kita, Hiromasa Nozawa and Masaki Fujimoto

    Earth, Planets and Space 2017 69:110

    Published on: 15 August 2017

  6. Full paper

    Evolution of the rheological structure of Mars

    The evolution of Mars has been greatly influenced by temporal changes in its rheological structure, which may explain the difference in tectonics between Mars and Earth. Some previous studies have shown the rh...

    Shintaro Azuma and Ikuo Katayama

    Earth, Planets and Space 2017 69:8

    Published on: 3 January 2017

  7. Full paper

    Laser link experiment with the Hayabusa2 laser altimeter for in-flight alignment measurement

    We report results of a laser link experiment between a laser altimeter called light detection and ranging (LIDAR) aboard Hayabusa2 and ground-based satellite laser ranging stations conducted when the spacecraf...

    Hirotomo Noda, Hiroo Kunimori, Takahide Mizuno, Hiroki Senshu, Naoko Ogawa, Hiroshi Takeuchi, Chris Moore, Alex Pollard, Tomohiro Yamaguchi, Noriyuki Namiki, Teiji Kase, Takanao Saiki and Yuichi Tsuda

    Earth, Planets and Space 2017 69:2

    Published on: 3 January 2017

  8. Full paper

    Tectonic evolution of northwestern Imbrium of the Moon that lasted in the Copernican Period

    The formation ages of tectonic structures and their spatial distributions were studied in the northwestern Imbrium and Sinus Iridum regions using images obtained by Terrain Camera and Multiband Imager on board...

    Yuko Daket, Atsushi Yamaji, Katsushi Sato, Junichi Haruyama, Tomokatsu Morota, Makiko Ohtake and Tsuneo Matsunaga

    Earth, Planets and Space 2016 68:157

    Published on: 20 September 2016

  9. Letter

    Characterization of asteroid analogues by means of emission and reflectance spectroscopy in the 1- to 100-µm spectral range

    The last decades have seen a large number of missions targeting small bodies in the solar system. NASA, ESA and JAXA sent missions to different solar system small bodies (SSSB), and the Japan mission Hayabusa ...

    Alessandro Maturilli, Jörn Helbert, Sabrina Ferrari, Björn Davidsson and Mario D’Amore

    Earth, Planets and Space 2016 68:113

    Published on: 11 July 2016

  10. Full paper

    Thermo-optical simulation and experiment for the assessment of single, hollow, and large aperture retroreflector for lunar laser ranging

    A single aperture and hollow retroreflector [corner-cube mirror (CCM)] that in principle has no internal optical path difference is a key instrument for achieving lunar laser ranging one order or more accurate...

    Hiroshi Araki, Shingo Kashima, Hirotomo Noda, Hiroo Kunimori, Kouta Chiba, Hitomi Mashiko, Hiromasa Kato, Toshimichi Otsubo, Yoshiaki Matsumoto, Seiitsu Tsuruta, Kazuyoshi Asari, Hideo Hanada, Susumu Yasuda, Shin Utsunomiya and Hideo Takino

    Earth, Planets and Space 2016 68:101

    Published on: 7 June 2016

  11. Frontier letter

    AKATSUKI returns to Venus

    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 appl...

    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…

    Earth, Planets and Space 2016 68:75

    Published on: 6 May 2016

  12. Full paper

    Development and in-flight calibration of IR2: 2-μm camera onboard Japan’s Venus orbiter, Akatsuki

    IR2, a near-infrared camera in the 2-μm region onboard Akatsuki has been developed to primarily study the middle-to-lower atmospheric dynamics of Venus as probed in the 1.74- and 2.3-μm “windows” of the

    Takehiko Satoh, Masato Nakamura, Munetaka Ueno, Kazunori Uemizu, Makoto Suzuki, Takeshi Imamura, Yasumasa Kasaba, Seiji Yoshida and Masafumi Kimata

    Earth, Planets and Space 2016 68:74

    Published on: 4 May 2016

  13. Full paper

    Miniature lightweight X-ray optics (MiXO) for surface elemental composition mapping of asteroids and comets

    The compositions of diverse planetary bodies are of fundamental interest to planetary science, providing clues to the formation and evolutionary history of the target bodies and the solar system as a whole. Ut...

    Jaesub Hong and Suzanne Romaine

    Earth, Planets and Space 2016 68:35

    Published on: 29 February 2016

    The Erratum to this article has been published in Earth, Planets and Space 2016 68:122

  14. Preface

    Special issue “International CAWSES-II Symposium”

    This special issue gathered papers from the International CAWSES-II Symposium (November 18–22, 2013 at Nagoya University, Japan). Climate and Weather of the Sun-Earth System II (CAWSES-II) is an international ...

    Mamoru Yamamoto, Kazuo Shiokawa, Takuji Nakamura and Nat Gopalswamy

    Earth, Planets and Space 2016 68:26

    Published on: 19 February 2016

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