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2. Rotational effect as the possible cause of the east-west asymmetric crater rims on Ryugu observed by LIDAR data

Author

Hirata, Naoyuki, Namiki, Noriyuki, Yoshida, Fumi, Matsumoto, Koji, Noda, Hirotomo, Senshu, Hiroki, Mizuno, Takahide, Terui, Fuyuto, Ishihara, Yoshiaki, Yamada, Ryuhei, Yamamoto, Keiko, Abe, Shinsuke, Noguchi, Rina, Hirata, Naru, Tsuda, Yuichi, and Watanabe, Sei-ichiro

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

Asteroid 162173 Ryugu is a rubble-pile asteroid, whose top-shape is compatible with models of deformation by spin up. Rims of major craters on Ryugu have an east-west asymmetric profile; their western crater rims are sharp and tall, while their eastern crater rims are rounded and low. Although there are various possible explanations, we theoretically assess the effect of asteroid rotation as the possible reason for this east-west asymmetry. It is known that the trajectories and fates of ejecta are affected by the rotation. The Coriolis force and the inertial speed of the rotating surface are the factors altering the ejecta trajectories. Consequently, we found that the east-west asymmetric crater rims might be formed as a result of rotation, when the inertial speed of the rotating surface is nearly equal to the first cosmic velocity of the body. In other words, it is possible that the observed east-west asymmetric rims of the Urashima, Cendrillon, and Kolobok craters were formed when Ryugu's rotation period was ~3.6 h., Comment: 30 pages 13 figures

Published
2022
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3. A dehydrated space-weathered skin cloaking the hydrated interior of Ryugu

Author

Noguchi, Takaaki, Matsumoto, Toru, Miyake, Akira, Igami, Yohei, Haruta, Mitsutaka, Saito, Hikaru, Hata, Satoshi, Seto, Yusuke, Miyahara, Masaaki, Tomioka, Naotaka, Ishii, Hope A., Bradley, John P., Ohtaki, Kenta K., Dobrică, Elena, Leroux, Hugues, Le Guillou, Corentin, Jacob, Damien, de la Peña, Francisco, Laforet, Sylvain, Marinova, Maya, Langenhorst, Falko, Harries, Dennis, Beck, Pierre, Phan, Thi H. V., Rebois, Rolando, Abreu, Neyda M., Gray, Jennifer, Zega, Thomas, Zanetta, Pierre-M., Thompson, Michelle S., Stroud, Rhonda, Burgess, Kate, Cymes, Brittany A., Bridges, John C., Hicks, Leon, Lee, Martin R., Daly, Luke, Bland, Phil A., Zolensky, Michael E., Frank, David R., Martinez, James, Tsuchiyama, Akira, Yasutake, Masahiro, Matsuno, Junya, Okumura, Shota, Mitsukawa, Itaru, Uesugi, Kentaro, Uesugi, Masayuki, Takeuchi, Akihisa, Sun, Mingqi, Enju, Satomi, Takigawa, Aki, Michikami, Tatsuhiro, Nakamura, Tomoki, Matsumoto, Megumi, Nakauchi, Yusuke, Abe, Masanao, Arakawa, Masahiko, Fujii, Atsushi, Hayakawa, Masahiko, Hirata, Naru, Hirata, Naoyuki, Honda, Rie, Honda, Chikatoshi, Hosoda, Satoshi, Iijima, Yu-ichi, Ikeda, Hitoshi, Ishiguro, Masateru, Ishihara, Yoshiaki, Iwata, Takahiro, Kawahara, Kousuke, Kikuchi, Shota, Kitazato, Kohei, Matsumoto, Koji, Matsuoka, Moe, Mimasu, Yuya, Miura, Akira, Morota, Tomokatsu, Nakazawa, Satoru, Namiki, Noriyuki, Noda, Hirotomo, Noguchi, Rina, Ogawa, Naoko, Ogawa, Kazunori, Okada, Tatsuaki, Okamoto, Chisato, Ono, Go, Ozaki, Masanobu, Saiki, Takanao, Sakatani, Naoya, Sawada, Hirotaka, Senshu, Hiroki, Shimaki, Yuri, Shirai, Kei, Sugita, Seiji, Takei, Yuto, Takeuchi, Hiroshi, Tanaka, Satoshi, Tatsumi, Eri, Terui, Fuyuto, Tsukizaki, Ryudo, Wada, Koji, Yamada, Manabu, Yamada, Tetsuya, Yamamoto, Yukio, Yano, Hajime, Yokota, Yasuhiro, Yoshihara, Keisuke, Yoshikawa, Makoto, Yoshikawa, Kent, Fukai, Ryohta, Furuya, Shizuho, Hatakeda, Kentaro, Hayashi, Tasuku, Hitomi, Yuya, Kumagai, Kazuya, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Soejima, Hiromichi, Suzuki, Ayako I., Usui, Tomohiro, Yada, Toru, Yamamoto, Daiki, Yogata, Kasumi, Yoshitake, Miwa, Connolly, Jr, Harold C., Lauretta, Dante S., Yurimoto, Hisayoshi, Nagashima, Kazuhide, Kawasaki, Noriyuki, Sakamoto, Naoya, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Tachibana, Shogo, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
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4. Demonstration of deep-space synchronous two-way laser ranging with a laser transponder aboard Hayabusa2

Author

Noda, Hirotomo, Senshu, Hiroki, Otsubo, Toshimichi, Takeuchi, Hiroshi, Courde, Clément, Kunimori, Hiroo, Moore, Christopher, Schreiber, Ulrich, Ogawa, Naoko, Saiki, Takanao, Takei, Yuto, Aimar, Mourad, Chabé, Julien, Eckl, Johann, Kamata, Shun'ichi, Higuchi, Arika, Hirai, Takayuki, Martinot-Lagarde, Grégoire, Mariey, Hervé, Matsumoto, Koji, Maurice, Nicolas, Nakazono, Jun'ichi, Phung, Duy-Hà, Scariot, Julien, Suetsugu, Ryo, Torre, Jean-Marie, Pollard, Alex, Viot, Hervé, Namiki, Noriyuki, and Mizuno, Takahide

Published
2023
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5. A pristine record of outer Solar System materials from asteroid Ryugu’s returned sample

Author

Ito, Motoo, Tomioka, Naotaka, Uesugi, Masayuki, Yamaguchi, Akira, Shirai, Naoki, Ohigashi, Takuji, Liu, Ming-Chang, Greenwood, Richard C., Kimura, Makoto, Imae, Naoya, Uesugi, Kentaro, Nakato, Aiko, Yogata, Kasumi, Yuzawa, Hayato, Kodama, Yu, Tsuchiyama, Akira, Yasutake, Masahiro, Findlay, Ross, Franchi, Ian A., Malley, James A., McCain, Kaitlyn A., Matsuda, Nozomi, McKeegan, Kevin D., Hirahara, Kaori, Takeuchi, Akihisa, Sekimoto, Shun, Sakurai, Ikuya, Okada, Ikuo, Karouji, Yuzuru, Arakawa, Masahiko, Fujii, Atsushi, Fujimoto, Masaki, Hayakawa, Masahiko, Hirata, Naoyuki, Hirata, Naru, Honda, Rie, Honda, Chikatoshi, Hosoda, Satoshi, Iijima, Yu-ichi, Ikeda, Hitoshi, Ishiguro, Masateru, Ishihara, Yoshiaki, Iwata, Takahiro, Kawahara, Kosuke, Kikuchi, Shota, Kitazato, Kohei, Matsumoto, Koji, Matsuoka, Moe, Michikami, Tatsuhiro, Mimasu, Yuya, Miura, Akira, Mori, Osamu, Morota, Tomokatsu, Nakazawa, Satoru, Namiki, Noriyuki, Noda, Hirotomo, Noguchi, Rina, Ogawa, Naoko, Ogawa, Kazunori, Okada, Tatsuaki, Okamoto, Chisato, Ono, Go, Ozaki, Masanobu, Saiki, Takanao, Sakatani, Naoya, Sawada, Hirotaka, Senshu, Hiroki, Shimaki, Yuri, Shirai, Kei, Sugita, Seiji, Takei, Yuto, Takeuchi, Hiroshi, Tanaka, Satoshi, Tatsumi, Eri, Terui, Fuyuto, Tsukizaki, Ryudo, Wada, Koji, Yamada, Manabu, Yamada, Tetsuya, Yamamoto, Yukio, Yano, Hajime, Yokota, Yasuhiro, Yoshihara, Keisuke, Yoshikawa, Makoto, Yoshikawa, Kent, Fukai, Ryota, Furuya, Shizuho, Hatakeda, Kentaro, Hayashi, Tasuku, Hitomi, Yuya, Kumagai, Kazuya, Miyazaki, Akiko, Nishimura, Masahiro, Soejima, Hiromichi, Iwamae, Ayako, Yamamoto, Daiki, Yoshitake, Miwa, Yada, Toru, Abe, Masanao, Usui, Tomohiro, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2022
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6. Inversion angle of phase-polarization curve of near-Earth asteroid (3200) Phaethon

Author

Shinnaka, Yoshiharu, Kasuga, Toshihiro, Furusho, Reiko, Boice, Daniel C., Terai, Tsuyoshi, Noda, Hirotomo, Namiki, Noriyuki, and Watanabe, Jun-ichi

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

The linear polarization degree (referred to the scattering plane, P_r) as a function of the solar phase angle, {\alpha}, of solar system objects is a good diagnostic to understand the scattering properties of their surface materials. We report Pr of Phaethon over a wide range of {\alpha} from 19.1 deg to 114.3 deg in order to better understanding properties of its surface materials. The derived phase-polarization curve shows that the maximum of P_r, P_max, is >42.4% at {\alpha} >114.3 deg, a value significantly larger than those of the moderate albedo asteroids (P_max ~9%). The phase-polarization curve classifies Phaethon as B-type in the polarimetric taxonomy, being compatible with the spectral property. We compute the geometric albedo, p_v, of 0.14 +/- 0.04 independently by using an empirical slope-albedo relation, and the derived p_v is consistent with previous results determined from mid-infrared spectra and thermophysical modeling. We could not find a fit to the period in our polarimetric data in the range from 0 up to 7.208 hr (e.g., less than twice the rotational period) and found significant differences between our P_r during the 2017 approach to the Earth and that of the 2016. These results imply that Phaethon has a region with different properties for light scattering near its orbital pole., Comment: 30 pages, 3 figures, 3 tables (includes long data table)

Published
2018
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8. The Ganymede Laser Altimeter (GALA) for the Jupiter Icy Moons Explorer (JUICE): Mission, science, and instrumentation of its receiver modules

Author

Enya, Keigo, Kobayashi, Masanori, Kimura, Jun, Araki, Hiroshi, Namiki, Noriyuki, Noda, Hirotomo, Kashima, Shingo, Oshigami, Shoko, Ishibashi, Ko, Yamawaki, T., Tohara, Kazuyuki, Saito, Yoshifumi, Ozaki, Masanobu, Mizuno, Takahide, Kamata, Shunichi, Matsumoto, Koji, Sasaki, Sho, Kuramoto, Kiyoshi, Sato, Yuki, Yokozawa, Takeshi, Numata, Tsutomu, Mizumoto, Satoko, Mizuno, Hiroyuki, Nagamine, Kenta, Sawamura, Akihiko, Tanimoto, Kazuo, Imai, Hisato, Nakagawa, Hiroyuki, Kirino, Okiharu, Green, David, Fujii, Masayuki, Iwamura, Satoru, Fujishiro, Naofumi, Matsumoto, Yoshiaki, Lingenauber, Kay, Kallenbach, Reinald, Althaus, Christian, Behnke, Thomas, Binger, Jan, Daurskikh, Anna, Eisenmenger, Henri, Heer, Ulrich, Hüttig, Christian, Lara, Luisa M., Lichopoj, Alexander, Lötzke, Horst-Georg, Lüdicke, Fabian, Michaelis, Harald, Pablo Rodriguez Garcia, Juan, Rösner, Kerstin, Stark, Alexander, Steinbrügge, Gregor, Thabaut, Pascal, Thomas, Nicolas, del Togno, Simone, Wahl, Daniel, Wendler, Belinda, Wickhusen, Kai, Willner, Konrad, and Hussmann, Hauke

Published
2022
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9. Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu

Author

Yada, Toru, Abe, Masanao, Okada, Tatsuaki, Nakato, Aiko, Yogata, Kasumi, Miyazaki, Akiko, Hatakeda, Kentaro, Kumagai, Kazuya, Nishimura, Masahiro, Hitomi, Yuya, Soejima, Hiromichi, Yoshitake, Miwa, Iwamae, Ayako, Furuya, Shizuho, Uesugi, Masayuki, Karouji, Yuzuru, Usui, Tomohiro, Hayashi, Tasuku, Yamamoto, Daiki, Fukai, Ryota, Sugita, Seiji, Cho, Yuichiro, Yumoto, Koki, Yabe, Yuna, Bibring, Jean-Pierre, Pilorget, Cedric, Hamm, Vincent, Brunetto, Rosario, Riu, Lucie, Lourit, Lionel, Loizeau, Damien, Lequertier, Guillaume, Moussi-Soffys, Aurelie, Tachibana, Shogo, Sawada, Hirotaka, Okazaki, Ryuji, Takano, Yoshinori, Sakamoto, Kanako, Miura, Yayoi N., Yano, Hajime, Ireland, Trevor R., Yamada, Tetsuya, Fujimoto, Masaki, Kitazato, Kohei, Namiki, Noriyuki, Arakawa, Masahiko, Hirata, Naru, Yurimoto, Hisayoshi, Nakamura, Tomoki, Noguchi, Takaaki, Yabuta, Hikaru, Naraoka, Hiroshi, Ito, Motoo, Nakamura, Eizo, Uesugi, Kentaro, Kobayashi, Katsura, Michikami, Tatsuhiro, Kikuchi, Hiroshi, Hirata, Naoyuki, Ishihara, Yoshiaki, Matsumoto, Koji, Noda, Hirotomo, Noguchi, Rina, Shimaki, Yuri, Shirai, Kei, Ogawa, Kazunori, Wada, Koji, Senshu, Hiroki, Yamamoto, Yukio, Morota, Tomokatsu, Honda, Rie, Honda, Chikatoshi, Yokota, Yasuhiro, Matsuoka, Moe, Sakatani, Naoya, Tatsumi, Eri, Miura, Akira, Yamada, Manabu, Fujii, Atsushi, Hirose, Chikako, Hosoda, Satoshi, Ikeda, Hitoshi, Iwata, Takahiro, Kikuchi, Shota, Mimasu, Yuya, Mori, Osamu, Ogawa, Naoko, Ono, Go, Shimada, Takanobu, Soldini, Stefania, Takahashi, Tadateru, Takei, Yuto, Takeuchi, Hiroshi, Tsukizaki, Ryudo, Yoshikawa, Kent, Terui, Fuyuto, Nakazawa, Satoru, Tanaka, Satoshi, Saiki, Takanao, Yoshikawa, Makoto, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2022
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11. Improving Hayabusa2 trajectory by combining LIDAR data and a shape model

Author

Matsumoto, Koji, Noda, Hirotomo, Ishihara, Yoshiaki, Senshu, Hiroki, Yamamoto, Keiko, Hirata, Naru, Hirata, Naoyuki, Namiki, Noriyuki, Otsubo, Toshimichi, Higuchi, Arika, Watanabe, Sei-ichiro, Ikeda, Hitoshi, Mizuno, Takahide, Yamada, Ryuhei, Araki, Hiroshi, Abe, Shinsuke, Yoshida, Fumi, Sasaki, Sho, Oshigami, Shoko, Tsuruta, Seiitsu, Asari, Kazuyoshi, Shizugami, Makoto, Yamamoto, Yukio, Ogawa, Naoko, Kikuchi, Shota, Saiki, Takanao, Tsuda, Yuichi, Yoshikawa, Makoto, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Yamaguchi, Tomohiro, Takei, Yuto, Takeuchi, Hiroshi, Okada, Tatsuaki, Yamada, Manabu, Shimaki, Yuri, Shirai, Kei, Ogawa, Kazunori, and Iijima, Yu-ichi

Published
2020
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12. Alignment determination of the Hayabusa2 laser altimeter (LIDAR)

Author

Noda, Hirotomo, Senshu, Hiroki, Matsumoto, Koji, Namiki, Noriyuki, Mizuno, Takahide, Sugita, Seiji, Abe, Shinsuke, Araki, Hiroshi, Asari, Kazuyoshi, Cho, Yuichiro, Fujii, Atsushi, Hayakawa, Masahiko, Higuchi, Arika, Hirata, Naoyuki, Hirata, Naru, Honda, Chikatoshi, Honda, Rie, Ishihara, Yoshiaki, Kameda, Shingo, Kikuchi, Shota, Kouyama, Toru, Matsuoka, Moe, Mimasu, Yuya, Morota, Tomokatsu, Nakazawa, Satoru, Ogawa, Kazunori, Ogawa, Naoko, Ono, Go, Oshigami, Shoko, Saiki, Takanao, Sakatani, Naoya, Sasaki, Sho, Sawada, Hirotaka, Shizugami, Makoto, Suzuki, Hidehiko, Takahashi, Tadateru, Takei, Yuto, Tanaka, Satoshi, Tatsumi, Eri, Terui, Fuyuto, Tsuda, Yuichi, Tsuruta, Seiitsu, Watanabe, Sei-ichiro, Yamada, Manabu, Yamada, Ryuhei, Yamaguchi, Tomohiro, Yamamoto, Keiko, Yokota, Yasuhiro, Yoshida, Fumi, Yoshikawa, Kent, Yoshikawa, Makoto, and Yoshioka, Kazuo

Published
2021
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15. Highly porous nature of a primitive asteroid revealed by thermal imaging

Author

Okada, Tatsuaki, Fukuhara, Tetsuya, Tanaka, Satoshi, Taguchi, Makoto, Arai, Takehiko, Senshu, Hiroki, Sakatani, Naoya, Shimaki, Yuri, Demura, Hirohide, Ogawa, Yoshiko, Suko, Kentaro, Sekiguchi, Tomohiko, Kouyama, Toru, Takita, Jun, Matsunaga, Tsuneo, Imamura, Takeshi, Wada, Takehiko, Hasegawa, Sunao, Helbert, Jörn, Müller, Thomas G., Hagermann, Axel, Biele, Jens, Grott, Matthias, Hamm, Maximilian, Delbo, Marco, Hirata, Naru, Hirata, Naoyuki, Yamamoto, Yukio, Sugita, Seiji, Namiki, Noriyuki, Kitazato, Kohei, Arakawa, Masahiko, Tachibana, Shogo, Ikeda, Hitoshi, Ishiguro, Masateru, Wada, Koji, Honda, Chikatoshi, Honda, Rie, Ishihara, Yoshiaki, Matsumoto, Koji, Matsuoka, Moe, Michikami, Tatsuhiro, Miura, Akira, Morota, Tomokatsu, Noda, Hirotomo, Noguchi, Rina, Ogawa, Kazunori, Shirai, Kei, Tatsumi, Eri, Yabuta, Hikaru, Yokota, Yasuhiro, Yamada, Manabu, Abe, Masanao, Hayakawa, Masahiko, Iwata, Takahiro, Ozaki, Masanobu, Yano, Hajime, Hosoda, Satoshi, Mori, Osamu, Sawada, Hirotaka, Shimada, Takanobu, Takeuchi, Hiroshi, Tsukizaki, Ryudo, Fujii, Atsushi, Hirose, Chikako, Kikuchi, Shota, Mimasu, Yuya, Ogawa, Naoko, Ono, Go, Takahashi, Tadateru, Takei, Yuto, Yamaguchi, Tomohiro, Yoshikawa, Kent, Terui, Fuyuto, Saiki, Takanao, Nakazawa, Satoru, Yoshikawa, Makoto, Watanabe, Seiichiro, and Tsuda, Yuichi

Published
2020
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16. The Ganymede laser altimeter (GALA): key objectives, instrument design, and performance

Author

Hussmann, Hauke, Lingenauber, Kay, Kallenbach, Reinald, Enya, Keigo, Thomas, Nicolas, Lara, Luisa M., Althaus, Christian, Araki, Hiroshi, Behnke, Thomas, Castro-Marin, Jose M., Eisenmenger, Henri, Gerber, Thomas, Herranz de la Revilla, Miguel, Hüttig, Christian, Ishibashi, Ko, Jiménez-Ortega, Jaime, Kimura, Jun, Kobayashi, Masanori, Lötzke, Horst-Georg, Lichopoj, Alexander, Lüdicke, Fabian, Martínez-Navajas, Ignacio, Michaelis, Harald, Namiki, Noriyuki, Noda, Hirotomo, Oberst, Jürgen, Oshigami, Shoko, Rodríguez García, Juan Pablo, Rodrigo, Julio, Rösner, Kerstin, Stark, Alexander, Steinbrügge, Gregor, Thabaut, Pascal, del Togno, Simone, Touhara, Kazuyuki, Villamil, Sebastian, Wendler, Belinda, Wickhusen, Kai, and Willner, Konrad

Published
2019
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17. GEOTAIL observation of the SGR1806-20 Giant Flare: The first 600 ms

Author

Terasawa, Toshio, Tanaka, Yasuyuki, Takei, Yasuhiro, Kawai, Nobuyuki, Yoshida, Atsumasa, Nomoto, Ken'ichi, Yoshikawa, Ichiro, Saito, Yoshifumi, Kasaba, Yasumasa, Takashima, Takeshi, Mukai, Toshifumi, Noda, Hirotomo, Murakami, Toshio, Watanabe, Kyoko, Muraki, Yasushi, Yokoyama, Takaaki, and Hoshino, Masahiro

Subjects
Astrophysics
Abstract

On December 27, 2004, plasma particle detectors on the GEOTAIL spacecraft detected an extremely strong signal of hard X-ray photons from the giant flare of SGR1806-20, a magnetar candidate. While practically all gamma-ray detectors on any satellites were saturated during the first ~500 ms interval after the onset, one of the particle detectors on GEOTAIL was not saturated and provided unique measurements of the hard X-ray intensity and the profile for the first 600 ms interval with 5.48 ms time resolution. After ~50 ms from the initial rapid onset, the peak photon flux (integrated above ~50 keV) reached the order of 10^7 photons sec^{-1} cm^{-2}. Assuming a blackbody spectrum with kT=175 keV, we estimate the peak energy flux to be 21 erg sec^{-1} cm^{-2} and the fluence (for 0-600 ms) to be 2.4 erg cm^{-2}. The implied energy release comparable to the magnetic energy stored in a magnetar (~10^{47} erg) suggests an extremely efficient energy release mechanism., Comment: 6 pages, 2 color figures, submitted to Nature

Published
2005
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18. Dynamic precise orbit determination of Hayabusa2 using laser altimeter (LIDAR) and image tracking data sets

Author

Yamamoto, Keiko, Otsubo, Toshimichi, Matsumoto, Koji, Noda, Hirotomo, Namiki, Noriyuki, Takeuchi, Hiroshi, Ikeda, Hitoshi, Yoshikawa, Makoto, Yamamoto, Yukio, Senshu, Hiroki, Mizuno, Takahide, Hirata, Naru, Yamada, Ryuhei, Ishihara, Yoshiaki, Araki, Hiroshi, Abe, Shinsuke, Yoshida, Fumi, Higuchi, Arika, Sasaki, Sho, Oshigami, Shoko, Tsuruta, Seiitsu, Asari, Kazuyoshi, Shizugami, Makoto, Ogawa, Naoko, Ono, Go, Mimasu, Yuya, Yoshikawa, Kent, Takahashi, Tadateru, Takei, Yuto, Fujii, Atsushi, Yamaguchi, Tomohiro, Kikuchi, Shota, Watanabe, Sei-ichiro, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Saiki, Takanao, and Tsuda, Yuichi

Published
2020
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20. Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites

Author

Yokoyama, Tetsuya, Nagashima, Kazuhide, Nakai, Izumi, Young, Edward D., Abe, Yoshinari, Aleon, Jerome, Alexander, Conel M. O'D., Amari, Sachiko, Amelin, Yuri, Bajo, Ken-ichi, Bizzarro, Martin, Namiki, Noriyuki, Noda, Hirotomo, Noguchi, Rina, Ogawa, Naoko, Ogawa, Kazunori, Okada, Tatsuaki, Okamoto, Chisato, Ono, Go, Ozaki, Masanobu, Saiki, Takanao, Bouvier, Audrey, Sakatani, Naoya, Sawada, Hirotaka, Senshu, Hiroki, Shimaki, Yuri, Shirai, Kei, Sugita, Seiji, Takei, Yuto, Takeuchi, Hiroshi, Tanaka, Satoshi, Tatsumi, Eri, Carlson, Richard W., Terui, Fuyuto, Tsuda, Yuichi, Tsukizaki, Ryudo, Wada, Koji, Watanabe, Sei-ichiro, Yamada, Manabu, Yamada, Tetsuya, Yamamoto, Yukio, Yano, Hajime, Yokota, Yasuhiro, Chaussidon, Marc, Yoshihara, Keisuke, Yoshikawa, Makoto, Yoshikawa, Kent, Furuya, Shizuho, Hatakeda, Kentaro, Hayashi, Tasuku, Hitomi, Yuya, Kumagai, Kazuya, Miyazaki, Akiko, Nakato, Aiko, Choi, Byeon-Gak, Nishimura, Masahiro, Soejima, Hiromichi, Suzuki, Ayako, Yada, Toru, Yamamoto, Daiki, Yogata, Kasumi, Yoshitake, Miwa, Tachibana, Shogo, Yurimoto, Hisayoshi, Dauphas, Nicolas, Davis, Andrew M., Di Rocco, Tommaso, Fujiya, Wataru, Fukai, Ryota, Gautam, Ikshu, Haba, Makiko K., Hibiya, Yuki, Hidaka, Hiroshi, Homma, Hisashi, Hoppe, Peter, Huss, Gary R., Ichida, Kiyohiro, Iizuka, Tsuyoshi, Ireland, Trevor R., Ishikawa, Akira, Ito, Motoo, Itoh, Shoichi, Kawasaki, Noriyuki, Kita, Noriko T., Kitajima, Kouki, Kleine, Thorsten, Komatani, Shintaro, Krot, Alexander N., Liu, Ming-Chang, Masuda, Yuki, McKeegan, Kevin D., Morita, Mayu, Motomura, Kazuko, Moynier, Frederic, Nguyen, Ann, Nittler, Larry, Onose, Morihiko, Pack, Andreas, Park, Changkun, Piani, Laurette, Qin, Liping, Russell, Sara S., Sakamoto, Naoya, Schoenbaechler, Maria, Tafla, Lauren, Tang, Haolan, Terada, Kentaro, Terada, Yasuko, Usui, Tomohiro, Wada, Sohei, Wadhwa, Meenakshi, Walker, Richard J., Yamashita, Katsuyuki, Yin, Qing-Zhu, Yoneda, Shigekazu, Yui, Hiroharu, Zhang, Ai-Cheng, Connolly Jr, Harold C., Lauretta, Dante S., Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Okazaki, Ryuji, Sakamoto, Kanako, Yabuta, Hikaru, Abe, Masanao, Arakawa, Masahiko, Fujii, Atsushi, Hayakawa, Masahiko, Hirata, Naoyuki, Hirata, Naru, Honda, Rie, Honda, Chikatoshi, Hosoda, Satoshi, Iijima, Yu-ichi, Ikeda, Hitoshi, Ishiguro, Masateru, Ishihara, Yoshiaki, Iwata, Takahiro, Kawahara, Kosuke, Kikuchi, Shota, Kitazato, Kohei, Matsumoto, Koji, Matsuoka, Moe, Michikami, Tatsuhiro, Mimasu, Yuya, Miura, Akira, Morota, Tomokatsu, Nakazawa, Satoru, Yokoyama, Tetsuya, Nagashima, Kazuhide, Nakai, Izumi, Young, Edward D., Abe, Yoshinari, Aleon, Jerome, Alexander, Conel M. O'D., Amari, Sachiko, Amelin, Yuri, Bajo, Ken-ichi, Bizzarro, Martin, Namiki, Noriyuki, Noda, Hirotomo, Noguchi, Rina, Ogawa, Naoko, Ogawa, Kazunori, Okada, Tatsuaki, Okamoto, Chisato, Ono, Go, Ozaki, Masanobu, Saiki, Takanao, Bouvier, Audrey, Sakatani, Naoya, Sawada, Hirotaka, Senshu, Hiroki, Shimaki, Yuri, Shirai, Kei, Sugita, Seiji, Takei, Yuto, Takeuchi, Hiroshi, Tanaka, Satoshi, Tatsumi, Eri, Carlson, Richard W., Terui, Fuyuto, Tsuda, Yuichi, Tsukizaki, Ryudo, Wada, Koji, Watanabe, Sei-ichiro, Yamada, Manabu, Yamada, Tetsuya, Yamamoto, Yukio, Yano, Hajime, Yokota, Yasuhiro, Chaussidon, Marc, Yoshihara, Keisuke, Yoshikawa, Makoto, Yoshikawa, Kent, Furuya, Shizuho, Hatakeda, Kentaro, Hayashi, Tasuku, Hitomi, Yuya, Kumagai, Kazuya, Miyazaki, Akiko, Nakato, Aiko, Choi, Byeon-Gak, Nishimura, Masahiro, Soejima, Hiromichi, Suzuki, Ayako, Yada, Toru, Yamamoto, Daiki, Yogata, Kasumi, Yoshitake, Miwa, Tachibana, Shogo, Yurimoto, Hisayoshi, Dauphas, Nicolas, Davis, Andrew M., Di Rocco, Tommaso, Fujiya, Wataru, Fukai, Ryota, Gautam, Ikshu, Haba, Makiko K., Hibiya, Yuki, Hidaka, Hiroshi, Homma, Hisashi, Hoppe, Peter, Huss, Gary R., Ichida, Kiyohiro, Iizuka, Tsuyoshi, Ireland, Trevor R., Ishikawa, Akira, Ito, Motoo, Itoh, Shoichi, Kawasaki, Noriyuki, Kita, Noriko T., Kitajima, Kouki, Kleine, Thorsten, Komatani, Shintaro, Krot, Alexander N., Liu, Ming-Chang, Masuda, Yuki, McKeegan, Kevin D., Morita, Mayu, Motomura, Kazuko, Moynier, Frederic, Nguyen, Ann, Nittler, Larry, Onose, Morihiko, Pack, Andreas, Park, Changkun, Piani, Laurette, Qin, Liping, Russell, Sara S., Sakamoto, Naoya, Schoenbaechler, Maria, Tafla, Lauren, Tang, Haolan, Terada, Kentaro, Terada, Yasuko, Usui, Tomohiro, Wada, Sohei, Wadhwa, Meenakshi, Walker, Richard J., Yamashita, Katsuyuki, Yin, Qing-Zhu, Yoneda, Shigekazu, Yui, Hiroharu, Zhang, Ai-Cheng, Connolly Jr, Harold C., Lauretta, Dante S., Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Okazaki, Ryuji, Sakamoto, Kanako, Yabuta, Hikaru, Abe, Masanao, Arakawa, Masahiko, Fujii, Atsushi, Hayakawa, Masahiko, Hirata, Naoyuki, Hirata, Naru, Honda, Rie, Honda, Chikatoshi, Hosoda, Satoshi, Iijima, Yu-ichi, Ikeda, Hitoshi, Ishiguro, Masateru, Ishihara, Yoshiaki, Iwata, Takahiro, Kawahara, Kosuke, Kikuchi, Shota, Kitazato, Kohei, Matsumoto, Koji, Matsuoka, Moe, Michikami, Tatsuhiro, Mimasu, Yuya, Miura, Akira, Morota, Tomokatsu, and Nakazawa, Satoru

Abstract

Carbonaceous meteorites are thought to be fragments of C-type (carbonaceous) asteroids. Samples of the C-type asteroid (162173) Ryugu were retrieved by the Hayabusa2 spacecraft. We measured the mineralogy and bulk chemical and isotopic compositions of Ryugu samples. The samples are mainly composed of materials similar to those of carbonaceous chondrite meteorites, particularly the CI (Ivuna-type) group. The samples consist predominantly of minerals formed in aqueous fluid on a parent planetesimal. The primary minerals were altered by fluids at a temperature of 37 degrees +/- 10 degrees C, about 5.2(-0.7)(+0.8) million (statistical) or 5.2(-2.1)(+1.6) million (systematic) years after the formation of the first solids in the Solar System. After aqueous alteration, the Ryugu samples were likely never heated above similar to 100 degrees C. The samples have a chemical composition that more closely resembles that of the Sun's photosphere than other natural samples do.

Published
2023

21. Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolution

Author

Okazaki, Ryuji, primary, Marty, Bernard, additional, Busemann, Henner, additional, Hashizume, Ko, additional, Gilmour, Jamie D., additional, Meshik, Alex, additional, Yada, Toru, additional, Kitajima, Fumio, additional, Broadley, Michael W., additional, Byrne, David, additional, Füri, Evelyn, additional, Riebe, My E. I., additional, Krietsch, Daniela, additional, Maden, Colin, additional, Ishida, Akizumi, additional, Clay, Patricia, additional, Crowther, Sarah A., additional, Fawcett, Lydia, additional, Lawton, Thomas, additional, Pravdivtseva, Olga, additional, Miura, Yayoi N., additional, Park, Jisun, additional, Bajo, Ken-ichi, additional, Takano, Yoshinori, additional, Yamada, Keita, additional, Kawagucci, Shinsuke, additional, Matsui, Yohei, additional, Yamamoto, Mizuki, additional, Righter, Kevin, additional, Sakai, Saburo, additional, Iwata, Naoyoshi, additional, Shirai, Naoki, additional, Sekimoto, Shun, additional, Inagaki, Makoto, additional, Ebihara, Mitsuru, additional, Yokochi, Reika, additional, Nishiizumi, Kunihiko, additional, Nagao, Keisuke, additional, Lee, Jong Ik, additional, Kano, Akihiro, additional, Caffee, Marc W., additional, Uemura, Ryu, additional, Nakamura, Tomoki, additional, Naraoka, Hiroshi, additional, Noguchi, Takaaki, additional, Yabuta, Hikaru, additional, Yurimoto, Hisayoshi, additional, Tachibana, Shogo, additional, Sawada, Hirotaka, additional, Sakamoto, Kanako, additional, Abe, Masanao, additional, Arakawa, Masahiko, additional, Fujii, Atsushi, additional, Hayakawa, Masahiko, additional, Hirata, Naoyuki, additional, Hirata, Naru, additional, Honda, Rie, additional, Honda, Chikatoshi, additional, Hosoda, Satoshi, additional, Iijima, Yu-ichi, additional, Ikeda, Hitoshi, additional, Ishiguro, Masateru, additional, Ishihara, Yoshiaki, additional, Iwata, Takahiro, additional, Kawahara, Kosuke, additional, Kikuchi, Shota, additional, Kitazato, Kohei, additional, Matsumoto, Koji, additional, Matsuoka, Moe, additional, Michikami, Tatsuhiro, additional, Mimasu, Yuya, additional, Miura, Akira, additional, Morota, Tomokatsu, additional, Nakazawa, Satoru, additional, Namiki, Noriyuki, additional, Noda, Hirotomo, additional, Noguchi, Rina, additional, Ogawa, Naoko, additional, Ogawa, Kazunori, additional, Okada, Tatsuaki, additional, Okamoto, Chisato, additional, Ono, Go, additional, Ozaki, Masanobu, additional, Saiki, Takanao, additional, Sakatani, Naoya, additional, Senshu, Hiroki, additional, Shimaki, Yuri, additional, Shirai, Kei, additional, Sugita, Seiji, additional, Takei, Yuto, additional, Takeuchi, Hiroshi, additional, Tanaka, Satoshi, additional, Tatsumi, Eri, additional, Terui, Fuyuto, additional, Tsukizaki, Ryudo, additional, Wada, Koji, additional, Yamada, Manabu, additional, Yamada, Tetsuya, additional, Yamamoto, Yukio, additional, Yano, Hajime, additional, Yokota, Yasuhiro, additional, Yoshihara, Keisuke, additional, Yoshikawa, Makoto, additional, Yoshikawa, Kent, additional, Furuya, Shizuho, additional, Hatakeda, Kentaro, additional, Hayashi, Tasuku, additional, Hitomi, Yuya, additional, Kumagai, Kazuya, additional, Miyazaki, Akiko, additional, Nakato, Aiko, additional, Nishimura, Masahiro, additional, Soejima, Hiromichi, additional, Iwamae, Ayako, additional, Yamamoto, Daiki, additional, Yogata, Kasumi, additional, Yoshitake, Miwa, additional, Fukai, Ryota, additional, Usui, Tomohiro, additional, Connolly, Harold C., additional, Lauretta, Dante, additional, Watanabe, Sei-ichiro, additional, and Tsuda, Yuichi, additional

Published
2023
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22. Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu

Author

Naraoka, Hiroshi, primary, Takano, Yoshinori, additional, Dworkin, Jason P., additional, Oba, Yasuhiro, additional, Hamase, Kenji, additional, Furusho, Aogu, additional, Ogawa, Nanako O., additional, Hashiguchi, Minako, additional, Fukushima, Kazuhiko, additional, Aoki, Dan, additional, Schmitt-Kopplin, Philippe, additional, Aponte, José C., additional, Parker, Eric T., additional, Glavin, Daniel P., additional, McLain, Hannah L., additional, Elsila, Jamie E., additional, Graham, Heather V., additional, Eiler, John M., additional, Orthous-Daunay, Francois-Regis, additional, Wolters, Cédric, additional, Isa, Junko, additional, Vuitton, Véronique, additional, Thissen, Roland, additional, Sakai, Saburo, additional, Yoshimura, Toshihiro, additional, Koga, Toshiki, additional, Ohkouchi, Naohiko, additional, Chikaraishi, Yoshito, additional, Sugahara, Haruna, additional, Mita, Hajime, additional, Furukawa, Yoshihiro, additional, Hertkorn, Norbert, additional, Ruf, Alexander, additional, Yurimoto, Hisayoshi, additional, Nakamura, Tomoki, additional, Noguchi, Takaaki, additional, Okazaki, Ryuji, additional, Yabuta, Hikaru, additional, Sakamoto, Kanako, additional, Tachibana, Shogo, additional, Connolly, Harold C., additional, Lauretta, Dante S., additional, Abe, Masanao, additional, Yada, Toru, additional, Nishimura, Masahiro, additional, Yogata, Kasumi, additional, Nakato, Aiko, additional, Yoshitake, Miwa, additional, Suzuki, Ayako, additional, Miyazaki, Akiko, additional, Furuya, Shizuho, additional, Hatakeda, Kentaro, additional, Soejima, Hiromichi, additional, Hitomi, Yuya, additional, Kumagai, Kazuya, additional, Usui, Tomohiro, additional, Hayashi, Tasuku, additional, Yamamoto, Daiki, additional, Fukai, Ryota, additional, Kitazato, Kohei, additional, Sugita, Seiji, additional, Namiki, Noriyuki, additional, Arakawa, Masahiko, additional, Ikeda, Hitoshi, additional, Ishiguro, Masateru, additional, Hirata, Naru, additional, Wada, Koji, additional, Ishihara, Yoshiaki, additional, Noguchi, Rina, additional, Morota, Tomokatsu, additional, Sakatani, Naoya, additional, Matsumoto, Koji, additional, Senshu, Hiroki, additional, Honda, Rie, additional, Tatsumi, Eri, additional, Yokota, Yasuhiro, additional, Honda, Chikatoshi, additional, Michikami, Tatsuhiro, additional, Matsuoka, Moe, additional, Miura, Akira, additional, Noda, Hirotomo, additional, Yamada, Tetsuya, additional, Yoshihara, Keisuke, additional, Kawahara, Kosuke, additional, Ozaki, Masanobu, additional, Iijima, Yu-ichi, additional, Yano, Hajime, additional, Hayakawa, Masahiko, additional, Iwata, Takahiro, additional, Tsukizaki, Ryudo, additional, Sawada, Hirotaka, additional, Hosoda, Satoshi, additional, Ogawa, Kazunori, additional, Okamoto, Chisato, additional, Hirata, Naoyuki, additional, Shirai, Kei, additional, Shimaki, Yuri, additional, Yamada, Manabu, additional, Okada, Tatsuaki, additional, Yamamoto, Yukio, additional, Takeuchi, Hiroshi, additional, Fujii, Atsushi, additional, Takei, Yuto, additional, Yoshikawa, Kento, additional, Mimasu, Yuya, additional, Ono, Go, additional, Ogawa, Naoko, additional, Kikuchi, Shota, additional, Nakazawa, Satoru, additional, Terui, Fuyuto, additional, Tanaka, Satoshi, additional, Saiki, Takanao, additional, Yoshikawa, Makoto, additional, Watanabe, Sei-ichiro, additional, and Tsuda, Yuichi, additional

Published
2023
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23. Macromolecular organic matter in samples of the asteroid (162173) Ryugu

Author

Yabuta, Hikaru, primary, Cody, George D., additional, Engrand, Cécile, additional, Kebukawa, Yoko, additional, De Gregorio, Bradley, additional, Bonal, Lydie, additional, Remusat, Laurent, additional, Stroud, Rhonda, additional, Quirico, Eric, additional, Nittler, Larry, additional, Hashiguchi, Minako, additional, Komatsu, Mutsumi, additional, Okumura, Taiga, additional, Mathurin, Jérémie, additional, Dartois, Emmanuel, additional, Duprat, Jean, additional, Takahashi, Yoshio, additional, Takeichi, Yasuo, additional, Kilcoyne, David, additional, Yamashita, Shohei, additional, Dazzi, Alexandre, additional, Deniset-Besseau, Ariane, additional, Sandford, Scott, additional, Martins, Zita, additional, Tamenori, Yusuke, additional, Ohigashi, Takuji, additional, Suga, Hiroki, additional, Wakabayashi, Daisuke, additional, Verdier-Paoletti, Maximilien, additional, Mostefaoui, Smail, additional, Montagnac, Gilles, additional, Barosch, Jens, additional, Kamide, Kanami, additional, Shigenaka, Miho, additional, Bejach, Laure, additional, Matsumoto, Megumi, additional, Enokido, Yuma, additional, Noguchi, Takaaki, additional, Yurimoto, Hisayoshi, additional, Nakamura, Tomoki, additional, Okazaki, Ryuji, additional, Naraoka, Hiroshi, additional, Sakamoto, Kanako, additional, Connolly, Harold C., additional, Lauretta, Dante S., additional, Abe, Masanao, additional, Okada, Tatsuaki, additional, Yada, Toru, additional, Nishimura, Masahiro, additional, Yogata, Kasumi, additional, Nakato, Aiko, additional, Yoshitake, Miwa, additional, Iwamae, Ayako, additional, Furuya, Shizuho, additional, Hatakeda, Kentaro, additional, Miyazaki, Akiko, additional, Soejima, Hiromichi, additional, Hitomi, Yuya, additional, Kumagai, Kazuya, additional, Usui, Tomohiro, additional, Hayashi, Tasuku, additional, Yamamoto, Daiki, additional, Fukai, Ryota, additional, Sugita, Seiji, additional, Kitazato, Kohei, additional, Hirata, Naru, additional, Honda, Rie, additional, Morota, Tomokatsu, additional, Tatsumi, Eri, additional, Sakatani, Naoya, additional, Namiki, Noriyuki, additional, Matsumoto, Koji, additional, Noguchi, Rina, additional, Wada, Koji, additional, Senshu, Hiroki, additional, Ogawa, Kazunori, additional, Yokota, Yasuhiro, additional, Ishihara, Yoshiaki, additional, Shimaki, Yuri, additional, Yamada, Manabu, additional, Honda, Chikatoshi, additional, Michikami, Tatsuhiro, additional, Matsuoka, Moe, additional, Hirata, Naoyuki, additional, Arakawa, Masahiko, additional, Okamoto, Chisato, additional, Ishiguro, Masateru, additional, Jaumann, Ralf, additional, Bibring, Jean-Pierre, additional, Grott, Matthias, additional, Schröder, Stefan, additional, Otto, Katharina, additional, Pilorget, Cedric, additional, Schmitz, Nicole, additional, Biele, Jens, additional, Ho, Tra-Mi, additional, Moussi-Soffys, Aurélie, additional, Miura, Akira, additional, Noda, Hirotomo, additional, Yamada, Tetsuya, additional, Yoshihara, Keisuke, additional, Kawahara, Kosuke, additional, Ikeda, Hitoshi, additional, Yamamoto, Yukio, additional, Shirai, Kei, additional, Kikuchi, Shota, additional, Ogawa, Naoko, additional, Takeuchi, Hiroshi, additional, Ono, Go, additional, Mimasu, Yuya, additional, Yoshikawa, Kent, additional, Takei, Yuto, additional, Fujii, Atsushi, additional, Iijima, Yu-ichi, additional, Nakazawa, Satoru, additional, Hosoda, Satoshi, additional, Iwata, Takahiro, additional, Hayakawa, Masahiko, additional, Sawada, Hirotaka, additional, Yano, Hajime, additional, Tsukizaki, Ryudo, additional, Ozaki, Masanobu, additional, Terui, Fuyuto, additional, Tanaka, Satoshi, additional, Fujimoto, Masaki, additional, Yoshikawa, Makoto, additional, Saiki, Takanao, additional, Tachibana, Shogo, additional, Watanabe, Sei-ichiro, additional, and Tsuda, Yuichi, additional

Published
2023
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24. Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites

Author

Yokoyama, Tetsuya, primary, Nagashima, Kazuhide, additional, Nakai, Izumi, additional, Young, Edward D., additional, Abe, Yoshinari, additional, Aléon, Jérôme, additional, Alexander, Conel M. O’D., additional, Amari, Sachiko, additional, Amelin, Yuri, additional, Bajo, Ken-ichi, additional, Bizzarro, Martin, additional, Bouvier, Audrey, additional, Carlson, Richard W., additional, Chaussidon, Marc, additional, Choi, Byeon-Gak, additional, Dauphas, Nicolas, additional, Davis, Andrew M., additional, Di Rocco, Tommaso, additional, Fujiya, Wataru, additional, Fukai, Ryota, additional, Gautam, Ikshu, additional, Haba, Makiko K., additional, Hibiya, Yuki, additional, Hidaka, Hiroshi, additional, Homma, Hisashi, additional, Hoppe, Peter, additional, Huss, Gary R., additional, Ichida, Kiyohiro, additional, Iizuka, Tsuyoshi, additional, Ireland, Trevor R., additional, Ishikawa, Akira, additional, Ito, Motoo, additional, Itoh, Shoichi, additional, Kawasaki, Noriyuki, additional, Kita, Noriko T., additional, Kitajima, Kouki, additional, Kleine, Thorsten, additional, Komatani, Shintaro, additional, Krot, Alexander N., additional, Liu, Ming-Chang, additional, Masuda, Yuki, additional, McKeegan, Kevin D., additional, Morita, Mayu, additional, Motomura, Kazuko, additional, Moynier, Frédéric, additional, Nguyen, Ann, additional, Nittler, Larry, additional, Onose, Morihiko, additional, Pack, Andreas, additional, Park, Changkun, additional, Piani, Laurette, additional, Qin, Liping, additional, Russell, Sara S., additional, Sakamoto, Naoya, additional, Schönbächler, Maria, additional, Tafla, Lauren, additional, Tang, Haolan, additional, Terada, Kentaro, additional, Terada, Yasuko, additional, Usui, Tomohiro, additional, Wada, Sohei, additional, Wadhwa, Meenakshi, additional, Walker, Richard J., additional, Yamashita, Katsuyuki, additional, Yin, Qing-Zhu, additional, Yoneda, Shigekazu, additional, Yui, Hiroharu, additional, Zhang, Ai-Cheng, additional, Connolly, Harold C., additional, Lauretta, Dante S., additional, Nakamura, Tomoki, additional, Naraoka, Hiroshi, additional, Noguchi, Takaaki, additional, Okazaki, Ryuji, additional, Sakamoto, Kanako, additional, Yabuta, Hikaru, additional, Abe, Masanao, additional, Arakawa, Masahiko, additional, Fujii, Atsushi, additional, Hayakawa, Masahiko, additional, Hirata, Naoyuki, additional, Hirata, Naru, additional, Honda, Rie, additional, Honda, Chikatoshi, additional, Hosoda, Satoshi, additional, Iijima, Yu-ichi, additional, Ikeda, Hitoshi, additional, Ishiguro, Masateru, additional, Ishihara, Yoshiaki, additional, Iwata, Takahiro, additional, Kawahara, Kosuke, additional, Kikuchi, Shota, additional, Kitazato, Kohei, additional, Matsumoto, Koji, additional, Matsuoka, Moe, additional, Michikami, Tatsuhiro, additional, Mimasu, Yuya, additional, Miura, Akira, additional, Morota, Tomokatsu, additional, Nakazawa, Satoru, additional, Namiki, Noriyuki, additional, Noda, Hirotomo, additional, Noguchi, Rina, additional, Ogawa, Naoko, additional, Ogawa, Kazunori, additional, Okada, Tatsuaki, additional, Okamoto, Chisato, additional, Ono, Go, additional, Ozaki, Masanobu, additional, Saiki, Takanao, additional, Sakatani, Naoya, additional, Sawada, Hirotaka, additional, Senshu, Hiroki, additional, Shimaki, Yuri, additional, Shirai, Kei, additional, Sugita, Seiji, additional, Takei, Yuto, additional, Takeuchi, Hiroshi, additional, Tanaka, Satoshi, additional, Tatsumi, Eri, additional, Terui, Fuyuto, additional, Tsuda, Yuichi, additional, Tsukizaki, Ryudo, additional, Wada, Koji, additional, Watanabe, Sei-ichiro, additional, Yamada, Manabu, additional, Yamada, Tetsuya, additional, Yamamoto, Yukio, additional, Yano, Hajime, additional, Yokota, Yasuhiro, additional, Yoshihara, Keisuke, additional, Yoshikawa, Makoto, additional, Yoshikawa, Kent, additional, Furuya, Shizuho, additional, Hatakeda, Kentaro, additional, Hayashi, Tasuku, additional, Hitomi, Yuya, additional, Kumagai, Kazuya, additional, Miyazaki, Akiko, additional, Nakato, Aiko, additional, Nishimura, Masahiro, additional, Soejima, Hiromichi, additional, Suzuki, Ayako, additional, Yada, Toru, additional, Yamamoto, Daiki, additional, Yogata, Kasumi, additional, Yoshitake, Miwa, additional, Tachibana, Shogo, additional, and Yurimoto, Hisayoshi, additional

Published
2023
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25. Multi-chord observation of stellar occultation by the near-Earth asteroid (3200) Phaethon on 2021 October 3 (UTC) with very high accuracy

Author

Yoshida, Fumi, primary, Hayamizu, Tsutomu, additional, Miyashita, Kazuhisa, additional, Watanabe, Hiroyuki, additional, Yamamura, Hidehito, additional, Akitaya, Hiroshi, additional, Asai, Akira, additional, Fujiwara, Yasunori, additional, Goto, Tateki, additional, Hashimoto, George L, additional, Hatanaka, Akitoshi, additional, Horaguchi, Toshihiro, additional, Ida, Miyoshi, additional, Imamura, Kazuyoshi, additional, Isobe, Ken, additional, Ishiguro, Masateru, additional, Kaizuka, Noboru, additional, Kasebe, Hisashi, additional, Kawasaki, Yohei, additional, Kim, Taewoo, additional, Kitazaki, Katsuhiko, additional, Manago, Norihiro, additional, Matsumura, Masafumi, additional, Matsushita, Hiroshi, additional, Matsuura, Shuji, additional, Nakamura, Takahiro, additional, Nagata, Toshihiro, additional, Noda, Hirotomo, additional, Ogawa, Masaaki, additional, Ohshima, Osamu, additional, Owada, Minoru, additional, Saitou, Kazuyuki, additional, Tsumura, Mitsunori, additional, Ueyama, Yoshihiro, additional, Watanabe, Hayato, additional, Yamamoto, Masa-yuki, additional, Yoshihara, Hideki, additional, Fujiwara, Takao, additional, Haraguchi, Miyu, additional, Hayashi, Hironori, additional, Hitotsuda, Tomoya, additional, Horikawa, Toshihiro, additional, Ishida, Kai, additional, Ito, Tadashi, additional, Jin, Sunho, additional, Kang, Wonseok, additional, Katayama, Toshihiko, additional, Kawabata, Koji S, additional, Kawasaki, Ryosuke, additional, Kim, Kihyeon, additional, Kita, Masayuki, additional, Kitazaki, Naoko, additional, Kurisu, Hiroya, additional, Matsushima, Makoto, additional, Matsumi, Chika, additional, Mihari, Ayami, additional, Naka, Masaru, additional, Nakaoka, Tatsuya, additional, Nishihama, Reiko, additional, Nishiyama, Yukio, additional, Nukui, Sadao, additional, Oba, Masahiko, additional, Okamoto, Takaya, additional, Omori, Yujiro, additional, Seo, Jinguk, additional, Shirakawa, Hiroki, additional, Sugino, Tomoshi, additional, Tani, Yuki, additional, Takagaki, Kazuhiko, additional, Ueda, Yukikazu, additional, Urakawa, Seitaro, additional, Watanabe, Masanari, additional, Yamashita, Kouhei, additional, Yamashita, Misato, additional, Sato, Isao, additional, Murayama, Shosaku, additional, Arai, Tomoko, additional, Herald, David, additional, and Higuchi, Arika, additional

Published
2022
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26. A dehydrated space-weathered skin cloaking the hydrated interior of Ryugu

Author

Noguchi, Takaaki, primary, Matsumoto, Toru, additional, Miyake, Akira, additional, Igami, Yohei, additional, Haruta, Mitsutaka, additional, Saito, Hikaru, additional, Hata, Satoshi, additional, Seto, Yusuke, additional, Miyahara, Masaaki, additional, Tomioka, Naotaka, additional, Ishii, Hope A., additional, Bradley, John P., additional, Ohtaki, Kenta K., additional, Dobrică, Elena, additional, Leroux, Hugues, additional, Le Guillou, Corentin, additional, Jacob, Damien, additional, de la Peña, Francisco, additional, Laforet, Sylvain, additional, Marinova, Maya, additional, Langenhorst, Falko, additional, Harries, Dennis, additional, Beck, Pierre, additional, Phan, Thi H. V., additional, Rebois, Rolando, additional, Abreu, Neyda M., additional, Gray, Jennifer, additional, Zega, Thomas, additional, Zanetta, Pierre-M., additional, Thompson, Michelle S., additional, Stroud, Rhonda, additional, Burgess, Kate, additional, Cymes, Brittany A., additional, Bridges, John C., additional, Hicks, Leon, additional, Lee, Martin R., additional, Daly, Luke, additional, Bland, Phil A., additional, Zolensky, Michael E., additional, Frank, David R., additional, Martinez, James, additional, Tsuchiyama, Akira, additional, Yasutake, Masahiro, additional, Matsuno, Junya, additional, Okumura, Shota, additional, Mitsukawa, Itaru, additional, Uesugi, Kentaro, additional, Uesugi, Masayuki, additional, Takeuchi, Akihisa, additional, Sun, Mingqi, additional, Enju, Satomi, additional, Takigawa, Aki, additional, Michikami, Tatsuhiro, additional, Nakamura, Tomoki, additional, Matsumoto, Megumi, additional, Nakauchi, Yusuke, additional, Abe, Masanao, additional, Arakawa, Masahiko, additional, Fujii, Atsushi, additional, Hayakawa, Masahiko, additional, Hirata, Naru, additional, Hirata, Naoyuki, additional, Honda, Rie, additional, Honda, Chikatoshi, additional, Hosoda, Satoshi, additional, Iijima, Yu-ichi, additional, Ikeda, Hitoshi, additional, Ishiguro, Masateru, additional, Ishihara, Yoshiaki, additional, Iwata, Takahiro, additional, Kawahara, Kousuke, additional, Kikuchi, Shota, additional, Kitazato, Kohei, additional, Matsumoto, Koji, additional, Matsuoka, Moe, additional, Mimasu, Yuya, additional, Miura, Akira, additional, Morota, Tomokatsu, additional, Nakazawa, Satoru, additional, Namiki, Noriyuki, additional, Noda, Hirotomo, additional, Noguchi, Rina, additional, Ogawa, Naoko, additional, Ogawa, Kazunori, additional, Okada, Tatsuaki, additional, Okamoto, Chisato, additional, Ono, Go, additional, Ozaki, Masanobu, additional, Saiki, Takanao, additional, Sakatani, Naoya, additional, Sawada, Hirotaka, additional, Senshu, Hiroki, additional, Shimaki, Yuri, additional, Shirai, Kei, additional, Sugita, Seiji, additional, Takei, Yuto, additional, Takeuchi, Hiroshi, additional, Tanaka, Satoshi, additional, Tatsumi, Eri, additional, Terui, Fuyuto, additional, Tsukizaki, Ryudo, additional, Wada, Koji, additional, Yamada, Manabu, additional, Yamada, Tetsuya, additional, Yamamoto, Yukio, additional, Yano, Hajime, additional, Yokota, Yasuhiro, additional, Yoshihara, Keisuke, additional, Yoshikawa, Makoto, additional, Yoshikawa, Kent, additional, Fukai, Ryohta, additional, Furuya, Shizuho, additional, Hatakeda, Kentaro, additional, Hayashi, Tasuku, additional, Hitomi, Yuya, additional, Kumagai, Kazuya, additional, Miyazaki, Akiko, additional, Nakato, Aiko, additional, Nishimura, Masahiro, additional, Soejima, Hiromichi, additional, Suzuki, Ayako I., additional, Usui, Tomohiro, additional, Yada, Toru, additional, Yamamoto, Daiki, additional, Yogata, Kasumi, additional, Yoshitake, Miwa, additional, Connolly, Harold C., additional, Lauretta, Dante S., additional, Yurimoto, Hisayoshi, additional, Nagashima, Kazuhide, additional, Kawasaki, Noriyuki, additional, Sakamoto, Naoya, additional, Okazaki, Ryuji, additional, Yabuta, Hikaru, additional, Naraoka, Hiroshi, additional, Sakamoto, Kanako, additional, Tachibana, Shogo, additional, Watanabe, Sei-ichiro, additional, and Tsuda, Yuichi, additional

Published
2022
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29. First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu

Author

Okazaki, Ryuji, primary, Miura, Yayoi N., additional, Takano, Yoshinori, additional, Sawada, Hirotaka, additional, Sakamoto, Kanako, additional, Yada, Toru, additional, Yamada, Keita, additional, Kawagucci, Shinsuke, additional, Matsui, Yohei, additional, Hashizume, Ko, additional, Ishida, Akizumi, additional, Broadley, Michael W., additional, Marty, Bernard, additional, Byrne, David, additional, Füri, Evelyn, additional, Meshik, Alex, additional, Pravdivtseva, Olga, additional, Busemann, Henner, additional, Riebe, My E.I., additional, Gilmour, Jamie, additional, Park, Jisun, additional, Bajo, Ken-ichi, additional, Righter, Kevin, additional, Sakai, Saburo, additional, Sekimoto, Shun, additional, Kitajima, Fumio, additional, Crowther, Sarah A., additional, Iwata, Naoyoshi, additional, Shirai, Naoki, additional, Ebihara, Mitsuru, additional, Yokochi, Reika, additional, Nishiizumi, Kunihiko, additional, Nagao, Keisuke, additional, Lee, Jong Ik, additional, Clay, Patricia, additional, Kano, Akihiro, additional, Caffee, Marc W., additional, Uemura, Ryu, additional, Inagaki, Makoto, additional, Krietsch, Daniela, additional, Maden, Colin, additional, Yamamoto, Mizuki, additional, Fawcett, Lydia, additional, Lawton, Thomas, additional, Nakamura, Tomoki, additional, Naraoka, Hiroshi, additional, Noguchi, Takaaki, additional, Yabuta, Hikaru, additional, Yurimoto, Hisayoshi, additional, Tsuda, Yuichi, additional, Watanabe, Sei-ichiro, additional, Abe, Masanao, additional, Arakawa, Masahiko, additional, Fujii, Atsushi, additional, Hayakawa, Masahiko, additional, Hirata, Naoyuki, additional, Hirata, Naru, additional, Honda, Rie, additional, Honda, Chikatoshi, additional, Hosoda, Satoshi, additional, Iijima, Yu-ichi, additional, Ikeda, Hitoshi, additional, Ishiguro, Masateru, additional, Ishihara, Yoshiaki, additional, Iwata, Takahiro, additional, Kawahara, Kosuke, additional, Kikuchi, Shota, additional, Kitazato, Kohei, additional, Matsumoto, Koji, additional, Matsuoka, Moe, additional, Michikami, Tatsuhiro, additional, Mimasu, Yuya, additional, Miura, Akira, additional, Morota, Tomokatsu, additional, Nakazawa, Satoru, additional, Namiki, Noriyuki, additional, Noda, Hirotomo, additional, Noguchi, Rina, additional, Ogawa, Naoko, additional, Ogawa, Kazunori, additional, Okada, Tatsuaki, additional, Okamoto, Chisato, additional, Ono, Go, additional, Ozaki, Masanobu, additional, Saiki, Takanao, additional, Sakatani, Naoya, additional, Senshu, Hiroki, additional, Shimaki, Yuri, additional, Shirai, Kei, additional, Sugita, Seiji, additional, Takei, Yuto, additional, Takeuchi, Hiroshi, additional, Tanaka, Satoshi, additional, Tatsumi, Eri, additional, Terui, Fuyuto, additional, Tsukizaki, Ryudo, additional, Wada, Koji, additional, Yamada, Manabu, additional, Yamada, Tetsuya, additional, Yamamoto, Yukio, additional, Yano, Hajime, additional, Yokota, Yasuhiro, additional, Yoshihara, Keisuke, additional, Yoshikawa, Makoto, additional, Yoshikawa, Kent, additional, Furuya, Shizuho, additional, Hatakeda, Kentaro, additional, Hayashi, Tasuku, additional, Hitomi, Yuya, additional, Kumagai, Kazuya, additional, Miyazaki, Akiko, additional, Nakato, Aiko, additional, Nishimura, Masahiro, additional, Soejima, Hiromichi, additional, Iwamae, Ayako, additional, Yamamoto, Daiki, additional, Yogata, Kasumi, additional, Yoshitake, Miwa, additional, Fukai, Ryota, additional, Usui, Tomohiro, additional, Ireland, Trevor, additional, Connolly, Harold C., additional, Lauretta, Dante S., additional, and Tachibana, Shogo, additional

Published
2022
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31. On the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspective

Author

NAKAMURA, Eizo, primary, KOBAYASHI, Katsura, additional, TANAKA, Ryoji, additional, KUNIHIRO, Tak, additional, KITAGAWA, Hiroshi, additional, POTISZIL, Christian, additional, OTA, Tsutomu, additional, SAKAGUCHI, Chie, additional, YAMANAKA, Masahiro, additional, RATNAYAKE, Dilan M., additional, TRIPATHI, Havishk, additional, KUMAR, Rahul, additional, AVRAMESCU, Maya-Liliana, additional, TSUCHIDA, Hidehisa, additional, YACHI, Yusuke, additional, MIURA, Hitoshi, additional, ABE, Masanao, additional, FUKAI, Ryota, additional, FURUYA, Shizuho, additional, HATAKEDA, Kentaro, additional, HAYASHI, Tasuku, additional, HITOMI, Yuya, additional, KUMAGAI, Kazuya, additional, MIYAZAKI, Akiko, additional, NAKATO, Aiko, additional, NISHIMURA, Masahiro, additional, OKADA, Tatsuaki, additional, SOEJIMA, Hiromichi, additional, SUGITA, Seiji, additional, SUZUKI, Ayako, additional, USUI, Tomohiro, additional, YADA, Toru, additional, YAMAMOTO, Daiki, additional, YOGATA, Kasumi, additional, YOSHITAKE, Miwa, additional, ARAKAWA, Masahiko, additional, FUJII, Atsushi, additional, HAYAKAWA, Masahiko, additional, HIRATA, Naoyuki, additional, HIRATA, Naru, additional, HONDA, Rie, additional, HONDA, Chikatoshi, additional, HOSODA, Satoshi, additional, IIJIMA, Yu-ichi, additional, IKEDA, Hitoshi, additional, ISHIGURO, Masateru, additional, ISHIHARA, Yoshiaki, additional, IWATA, Takahiro, additional, KAWAHARA, Kosuke, additional, KIKUCHI, Shota, additional, KITAZATO, Kohei, additional, MATSUMOTO, Koji, additional, MATSUOKA, Moe, additional, MICHIKAMI, Tatsuhiro, additional, MIMASU, Yuya, additional, MIURA, Akira, additional, MOROTA, Tomokatsu, additional, NAKAZAWA, Satoru, additional, NAMIKI, Noriyuki, additional, NODA, Hirotomo, additional, NOGUCHI, Rina, additional, OGAWA, Naoko, additional, OGAWA, Kazunori, additional, OKAMOTO, Chisato, additional, ONO, Go, additional, OZAKI, Masanobu, additional, SAIKI, Takanao, additional, SAKATANI, Naoya, additional, SAWADA, Hirotaka, additional, SENSHU, Hiroki, additional, SHIMAKI, Yuri, additional, SHIRAI, Kei, additional, TAKEI, Yuto, additional, TAKEUCHI, Hiroshi, additional, TANAKA, Satoshi, additional, TATSUMI, Eri, additional, TERUI, Fuyuto, additional, TSUKIZAKI, Ryudo, additional, WADA, Koji, additional, YAMADA, Manabu, additional, YAMADA, Tetsuya, additional, YAMAMOTO, Yukio, additional, YANO, Hajime, additional, YOKOTA, Yasuhiro, additional, YOSHIHARA, Keisuke, additional, YOSHIKAWA, Makoto, additional, YOSHIKAWA, Kent, additional, FUJIMOTO, Masaki, additional, WATANABE, Sei-ichiro, additional, and TSUDA, Yuichi, additional

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2022
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33. First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu

Author

00898455, Okazaki, Ryuji, Miura, Yayoi N., Takano, Yoshinori, Sawada, Hirotaka, Sakamoto, Kanako, Yada, Toru, Yamada, Keita, Kawagucci, Shinsuke, Matsui, Yohei, Hashizume, Ko, Ishida, Akizumi, Broadley, Michael W., Marty, Bernard, Byrne, David, Füri, Evelyn, Meshik, Alex, Pravdivtseva, Olga, Busemann, Henner, Riebe, My E.I., Gilmour, Jamie, Park, Jisun, Bajo, Ken-ichi, Righter, Kevin, Sakai, Saburo, Sekimoto, Shun, Kitajima, Fumio, Crowther, Sarah A., Iwata, Naoyoshi, Shirai, Naoki, Ebihara, Mitsuru, Yokochi, Reika, Nishiizumi, Kunihiko, Nagao, Keisuke, Lee, Jong Ik, Clay, Patricia, Kano, Akihiro, Caffee, Marc W., Uemura, Ryu, Inagaki, Makoto, Krietsch, Daniela, Maden, Colin, Yamamoto, Mizuki, Fawcett, Lydia, Lawton, Thomas, Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Yabuta, Hikaru, Yurimoto, Hisayoshi, Tsuda, Yuichi, Watanabe, Sei-ichiro, Abe, Masanao, Arakawa, Masahiko, Fujii, Atsushi, Hayakawa, Masahiko, Hirata, Naoyuki, Hirata, Naru, Honda, Rie, Honda, Chikatoshi, Hosoda, Satoshi, Iijima, Yu-ichi, Ikeda, Hitoshi, Ishiguro, Masateru, Ishihara, Yoshiaki, Iwata, Takahiro, Kawahara, Kosuke, Kikuchi, Shota, Kitazato, Kohei, Matsumoto, Koji, Matsuoka, Moe, Michikami, Tatsuhiro, Mimasu, Yuya, Miura, Akira, Morota, Tomokatsu, Nakazawa, Satoru, Namiki, Noriyuki, Noda, Hirotomo, Noguchi, Rina, Ogawa, Naoko, Ogawa, Kazunori, Okada, Tatsuaki, Okamoto, Chisato, Ono, Go, Ozaki, Masanobu, Saiki, Takanao, Sakatani, Naoya, Senshu, Hiroki, Shimaki, Yuri, Shirai, Kei, Sugita, Seiji, Takei, Yuto, Takeuchi, Hiroshi, Tanaka, Satoshi, Tatsumi, Eri, Terui, Fuyuto, Tsukizaki, Ryudo, Wada, Koji, Yamada, Manabu, Yamada, Tetsuya, Yamamoto, Yukio, Yano, Hajime, Yokota, Yasuhiro, Yoshihara, Keisuke, Yoshikawa, Makoto, Yoshikawa, Kent, Furuya, Shizuho, Hatakeda, Kentaro, Hayashi, Tasuku, Hitomi, Yuya, Kumagai, Kazuya, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Soejima, Hiromichi, Iwamae, Ayako, Yamamoto, Daiki, Yogata, Kasumi, Yoshitake, Miwa, Fukai, Ryota, Usui, Tomohiro, Ireland, Trevor, Connolly, Harold C., Lauretta, Dante S., Tachibana, Shogo, 00898455, Okazaki, Ryuji, Miura, Yayoi N., Takano, Yoshinori, Sawada, Hirotaka, Sakamoto, Kanako, Yada, Toru, Yamada, Keita, Kawagucci, Shinsuke, Matsui, Yohei, Hashizume, Ko, Ishida, Akizumi, Broadley, Michael W., Marty, Bernard, Byrne, David, Füri, Evelyn, Meshik, Alex, Pravdivtseva, Olga, Busemann, Henner, Riebe, My E.I., Gilmour, Jamie, Park, Jisun, Bajo, Ken-ichi, Righter, Kevin, Sakai, Saburo, Sekimoto, Shun, Kitajima, Fumio, Crowther, Sarah A., Iwata, Naoyoshi, Shirai, Naoki, Ebihara, Mitsuru, Yokochi, Reika, Nishiizumi, Kunihiko, Nagao, Keisuke, Lee, Jong Ik, Clay, Patricia, Kano, Akihiro, Caffee, Marc W., Uemura, Ryu, Inagaki, Makoto, Krietsch, Daniela, Maden, Colin, Yamamoto, Mizuki, Fawcett, Lydia, Lawton, Thomas, Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Yabuta, Hikaru, Yurimoto, Hisayoshi, Tsuda, Yuichi, Watanabe, Sei-ichiro, Abe, Masanao, Arakawa, Masahiko, Fujii, Atsushi, Hayakawa, Masahiko, Hirata, Naoyuki, Hirata, Naru, Honda, Rie, Honda, Chikatoshi, Hosoda, Satoshi, Iijima, Yu-ichi, Ikeda, Hitoshi, Ishiguro, Masateru, Ishihara, Yoshiaki, Iwata, Takahiro, Kawahara, Kosuke, Kikuchi, Shota, Kitazato, Kohei, Matsumoto, Koji, Matsuoka, Moe, Michikami, Tatsuhiro, Mimasu, Yuya, Miura, Akira, Morota, Tomokatsu, Nakazawa, Satoru, Namiki, Noriyuki, Noda, Hirotomo, Noguchi, Rina, Ogawa, Naoko, Ogawa, Kazunori, Okada, Tatsuaki, Okamoto, Chisato, Ono, Go, Ozaki, Masanobu, Saiki, Takanao, Sakatani, Naoya, Senshu, Hiroki, Shimaki, Yuri, Shirai, Kei, Sugita, Seiji, Takei, Yuto, Takeuchi, Hiroshi, Tanaka, Satoshi, Tatsumi, Eri, Terui, Fuyuto, Tsukizaki, Ryudo, Wada, Koji, Yamada, Manabu, Yamada, Tetsuya, Yamamoto, Yukio, Yano, Hajime, Yokota, Yasuhiro, Yoshihara, Keisuke, Yoshikawa, Makoto, Yoshikawa, Kent, Furuya, Shizuho, Hatakeda, Kentaro, Hayashi, Tasuku, Hitomi, Yuya, Kumagai, Kazuya, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Soejima, Hiromichi, Iwamae, Ayako, Yamamoto, Daiki, Yogata, Kasumi, Yoshitake, Miwa, Fukai, Ryota, Usui, Tomohiro, Ireland, Trevor, Connolly, Harold C., Lauretta, Dante S., and Tachibana, Shogo

Abstract

The Hayabusa2 spacecraft returned to Earth from the asteroid 162173 Ryugu on 6 December 2020. One day after the recovery, the gas species retained in the sample container were extracted and measured on-site and stored in gas collection bottles. The container gas consists of helium and neon with an extraterrestrial ³He/⁴He and ²⁰Ne/²²Ne ratios, along with some contaminant terrestrial atmospheric gases. A mixture of solar and Earth’s atmospheric gas is the best explanation for the container gas composition. Fragmentation of Ryugu grains within the sample container is discussed on the basis of the estimated amount of indigenous He and the size distribution of the recovered Ryugu grains. This is the first successful return of gas species from a near-Earth asteroid.

Published
2022

34. Derivation of 1.064 μm albedo on the C-type asteroid Ryugu from laser pulse intensity measurement of the Hayabusa2 LIDAR

Author

Yamada, Ryuhei, primary, Yamamoto, Keiko, additional, Oshigami, Shoko, additional, Araki, Hiroshi, additional, Senshu, Hiroki, additional, Noda, Hirotomo, additional, Namiki, Noriyuki, additional, Matsumoto, Koji, additional, Yoshida, Fumi, additional, Abe, Shinsuke, additional, Hirata, Naru, additional, Sasaki, Sho, additional, and Mizuno, Takahide, additional

Published
2022
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36. The Ganymede Laser Altimeter (GALA) for the Jupiter Icy Moons Explorer (JUICE): Mission, science, and instrumentation of its receiver modules

Author

Enya, Keigo, Kobayashi, Masanori, Kimura, Jun, Araki, Hiroshi, Namiki, Noriyuki, Noda, Hirotomo, Kashima, Shingo, Oshigami, Shoko, Ishibashi, Ko, Yamawaki, T., Tohara, Kazuyuki, Saito, Yoshifumi, Ozaki, Masanobu, Mizuno, Takahide, Kamata, Shunichi, Matsumoto, Koji, Sasaki, Sho, Kuramoto, Kiyoshi, Sato, Yuki, Yokozawa, Takeshi, Numata, Tsutomu, Mizumoto, Satoko, Mizuno, Hiroyuki, Nagamine, Kenta, Sawamura, Akihiko, Tanimoto, Kazuo, Imai, Hisato, Nakagawa, Hiroyuki, Kirino, Okiharu, Green, David, Fujii, Masayuki, Iwamura, Satoru, Fujishiro, Naofumi, Matsumoto, Yoshiaki, Lingenauber, Kay, Kallenbach, Reinald, Althaus, Christian, Behnke, Thomas, Binger, Jan, Daurskikh, Anna, Eisenmenger, Henri, Heer, Ulrich, Hüttig, Christian, Lara, Luisa M., Lichopoj, Alexander, Lötzke, Horst-Georg, Lüdicke, Fabian, Michaelis, Harald, Pablo Rodriguez Garcia, Juan, Rösner, Kerstin, Stark, Alexander, Steinbrügge, Gregor, Thabaut, Pascal, Thomas, Nicolas, Del Togno, Simone, Wahl, Daniel, Wendler, Belinda, Wickhusen, Kai, Willner, Konrad, Hussmann, Hauke, Ministerio de Ciencia e Innovación (España), European Commission, National Natural Science Foundation of China, and Chinese Academy of Sciences

Subjects
Atmospheric Science, Finite element method, Binary asteroids, 520 Astronomy, GPU, Aerospace Engineering, Laser Altimeter, Astronomy and Astrophysics, CUDA, Full 2-body, 620 Engineering, Receiver, Geophysics, Space and Planetary Science, Ganymede, General Earth and Planetary Sciences, JUICE
Abstract

Full list of authors: Enya, Keigo; Kobayashi, Masanori; Kimura, Jun; Araki, Hiroshi; Namiki, Noriyuki; Noda, Hirotomo; Kashima, Shingo; Oshigami, Shoko; Ishibashi, Ko; Yamawaki, T.; Tohara, Kazuyuki; Saito, Yoshifumi; Ozaki, Masanobu; Mizuno, Takahide; Kamata, Shunichi; Matsumoto, Koji; Sasaki, Sho; Kuramoto, Kiyoshi; Sato, Yuki; Yokozawa, Takeshi; Numata, Tsutomu; Mizumoto, Satoko; Mizuno, Hiroyuki; Nagamine, Kenta; Sawamura, Akihiko; Tanimoto, Kazuo; Imai, Hisato; Nakagawa, Hiroyuki; Kirino, Okiharu; Green, David; Fujii, Masayuki; Iwamura, Satoru; Fujishiro, Naofumi; Matsumoto, Yoshiaki; Lingenauber, Kay; Kallenbach, Reinald; Althaus, Christian; Behnke, Thomas; Binger, Jan; Daurskikh, Anna; Eisenmenger, Henri; Heer, Ulrich; Hüttig, Christian; Lara, Luisa M.; Lichopoj, Alexander; Lötzke, Horst-Georg; Lüdicke, Fabian; Michaelis, Harald; Pablo Rodriguez Garcia, Juan; Rösner, Kerstin; Stark, Alexander; Steinbrügge, Gregor; Thabaut, Pascal; Thomas, Nicolas; del Togno, Simone; Wahl, Daniel; Wendler, Belinda; Wickhusen, Kai; Willner, Konrad; Hussmann, Hauke.--This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/ by-nc-nd/4.0/)., The Jupiter Icy Moons Explorer (JUICE) is a science mission led by the European Space Agency, being developed for launch in 2023. The Ganymede Laser Altimeter (GALA) is an instrument onboard JUICE, whose main scientific goals are to understand ice tectonics based on topographic data, the subsurface structure by measuring tidal response, and small-scale roughness and albedo of the surface. In addition, from the perspective of astrobiology, it is imperative to study the subsurface ocean scientifically. The development of GALA has proceeded through an international collaboration between Germany (the lead), Japan, Switzerland, and Spain. Within this framework, the Japanese team (GALA-J) is responsible for developing three receiver modules: the Backend Optics (BEO), the Focal Plane Assembly (FPA), and the Analog Electronics Module (AEM). Like the German team, GALA-J also developed software to simulate the performance of the entire GALA system (performance model). In July 2020, the Proto-Flight Models of BEO, FPA, and AEM were delivered from Japan to Germany. This paper presents an overview of JUICE/GALA and its scientific objectives and describes the instrumentation, mainly focusing on Japan's contribution. © 2021 COSPAR., NSO/Kitt Peak data (synoptic maps of He I Å intensity) used here are produced cooperatively by NSF/NOAO, NASA/GSFC, and NOAA/SEL. Sunspot number (version 2) comes from the Sunspot Index and Long-term Solar Observations at Royal Observatory of Belgium, Brussels. All used data are courtesy to be downloaded from their web sites. The authors would like to express their deep thanks to the staffs of these web sites. This work is supported by the National Natural Science Foundation of China (11973085, 11903077, 11803086, and 11633008), the Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project), the national project for large scale scientific facilities (2019YFA0405001), and the Chinese Academy of Sciences., With funding from the Spanish government through the Severo Ochoa Centre of Excellence accreditation SEV-2017-0709.

Published
2021

38. Hayabusa2 returned samples: A unique and pristine record of outer Solar System materials from asteroid Ryugu

Author

Ito, Motoo, primary, Tomioka, Naotaka, additional, Uesugi, Masayuki, additional, Yamaguchi, Akira, additional, Shirai, Naoki, additional, Ohigashi, Takuji, additional, Liu, Ming-Chang, additional, Greenwood, Richard, additional, Kimura, Makoto, additional, Imae, Naoya, additional, Uesugi, Kentaro, additional, Nakato, Aiko, additional, Yogata, Kasumi, additional, Yuzawa, Hayato, additional, Kodama, Yu, additional, Tsuchiyama, Akira, additional, Yasutake, Masahiro, additional, Findlay, Ross, additional, Franchi, Ian, additional, Malley, James, additional, McCain, Kaitlyn, additional, Matsuda, Nozomi, additional, McKeegan, Kevin, additional, Hirahara, Kaori, additional, Takeuchi, Akihisa, additional, Sekimoto, Shun, additional, Sakurai, Ikuya, additional, Okada, Ikuo, additional, Karouji, Yuzuru, additional, Arakawa, Masahiko, additional, Fujii, Atsushi, additional, Fujimoto, Masaki, additional, Hayakawa, Masahiko, additional, Hirata, Naoyuki, additional, Hirata, Naru, additional, Honda, Rie, additional, Honda, Chikatoshi, additional, Hosoda, Satoshi, additional, Iijima, Yu-ichi, additional, Ikeda, Hitoshi, additional, Ishiguro, Masateru, additional, Ishihara, Yoshiaki, additional, Iwata, Takahiro, additional, Kawahara, Kosuke, additional, Kikuchi, Shota, additional, Kitazato, Kohei, additional, Matsumoto, Koji, additional, Matsuoka, Moe, additional, Michikami, Tatsuhiro, additional, Mimasu, Yuya, additional, Miura, Akira, additional, Mori, Osamu, additional, Morota, Tmokatsu, additional, Nakazawa, Satoru, additional, Namiki, Noriyuki, additional, Noda, Hirotomo, additional, Noguchi, Rina, additional, Ogawa, Naoko, additional, Ogawa, Kazunori, additional, Okada, Tatsuaki, additional, Okamoto, Chisato, additional, Ono, Go, additional, Ozaki, Masanobu, additional, Saiki, Takanao, additional, Sakatani, Naoya, additional, Sawada, Hirotaka, additional, Senshu, Hiroki, additional, Shimaki, Yuri, additional, Shirai, Kei, additional, Sugita, Seiji, additional, Takei, Yuto, additional, Takeuchi, Hiroshi, additional, Tanaka, Satoshi, additional, Tatsumi, Eri, additional, Terui, Fuyuto, additional, Tsukizaki, Ryudo, additional, Wada, Koji, additional, Yamada, Manabu, additional, Yamada, Tetsuya, additional, Yamamoto, Yukio, additional, Yano, Hajime, additional, Yokota, Yasuhiro, additional, Yoshihara, Keisuke, additional, Yoshikawa, Makoto, additional, Yoshikawa, Kent, additional, Fukai, Ryota, additional, Furuya, Shizuho, additional, Hatakeda, Kentaro, additional, Hayashi, Tasuku, additional, Hitomi, Yuya, additional, Kumagai, Kazuya, additional, Miyazaki, Akiko, additional, Nishimura, Masahiro, additional, Soejima, Hiromichi, additional, Iwamae, Ayako, additional, Yamamoto, Daiki, additional, Yoshitake, Miwa, additional, Yada, Toru, additional, Abe, Masanao, additional, Usui, Tomohiro, additional, Watanabe, Sei-ichiro, additional, and Tsuda, Yuichi, additional

Published
2022
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39. Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu

Author

Yada, Toru, primary, Abe, Masanao, additional, Okada, Tatsuaki, additional, Nakato, Aiko, additional, Yogata, Kasumi, additional, Miyazaki, Akiko, additional, Hatakeda, Kentaro, additional, Kumagai, Kazuya, additional, Nishimura, Masahiro, additional, Hitomi, Yuya, additional, Soejima, Hiromichi, additional, Yoshitake, Miwa, additional, Iwamae, Ayako, additional, Furuya, Shizuho, additional, Uesugi, Masayuki, additional, Karouji, Yuzuru, additional, Usui, Tomohiro, additional, Hayashi, Tasuku, additional, Yamamoto, Daiki, additional, Fukai, Ryota, additional, Sugita, Seiji, additional, Cho, Yuichiro, additional, Yumoto, Koki, additional, Yabe, Yuna, additional, Bibring, Jean-Pierre, additional, Pilorget, Cedric, additional, Hamm, Vincent, additional, Brunetto, Rosario, additional, Riu, Lucie, additional, Lourit, Lionel, additional, Loizeau, Damien, additional, Lequertier, Guillaume, additional, Moussi-Soffys, Aurelie, additional, Tachibana, Shogo, additional, Sawada, Hirotaka, additional, Okazaki, Ryuji, additional, Takano, Yoshinori, additional, Sakamoto, Kanako, additional, Miura, Yayoi N., additional, Yano, Hajime, additional, Ireland, Trevor R., additional, Yamada, Tetsuya, additional, Fujimoto, Masaki, additional, Kitazato, Kohei, additional, Namiki, Noriyuki, additional, Arakawa, Masahiko, additional, Hirata, Naru, additional, Yurimoto, Hisayoshi, additional, Nakamura, Tomoki, additional, Noguchi, Takaaki, additional, Yabuta, Hikaru, additional, Naraoka, Hiroshi, additional, Ito, Motoo, additional, Nakamura, Eizo, additional, Uesugi, Kentaro, additional, Kobayashi, Katsura, additional, Michikami, Tatsuhiro, additional, Kikuchi, Hiroshi, additional, Hirata, Naoyuki, additional, Ishihara, Yoshiaki, additional, Matsumoto, Koji, additional, Noda, Hirotomo, additional, Noguchi, Rina, additional, Shimaki, Yuri, additional, Shirai, Kei, additional, Ogawa, Kazunori, additional, Wada, Koji, additional, Senshu, Hiroki, additional, Yamamoto, Yukio, additional, Morota, Tomokatsu, additional, Honda, Rie, additional, Honda, Chikatoshi, additional, Yokota, Yasuhiro, additional, Matsuoka, Moe, additional, Sakatani, Naoya, additional, Tatsumi, Eri, additional, Miura, Akira, additional, Yamada, Manabu, additional, Fujii, Atsushi, additional, Hirose, Chikako, additional, Hosoda, Satoshi, additional, Ikeda, Hitoshi, additional, Iwata, Takahiro, additional, Kikuchi, Shota, additional, Mimasu, Yuya, additional, Mori, Osamu, additional, Ogawa, Naoko, additional, Ono, Go, additional, Shimada, Takanobu, additional, Soldini, Stefania, additional, Takahashi, Tadateru, additional, Takei, Yuto, additional, Takeuchi, Hiroshi, additional, Tsukizaki, Ryudo, additional, Yoshikawa, Kent, additional, Terui, Fuyuto, additional, Nakazawa, Satoru, additional, Tanaka, Satoshi, additional, Saiki, Takanao, additional, Yoshikawa, Makoto, additional, Watanabe, Sei-ichiro, additional, and Tsuda, Yuichi, additional

Published
2021
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41. Ryugu: A brand-new planetary sample returned from a C-type asteroid

Author

Yada, Toru, primary, Abe, Masanao, additional, Okada, Tatsuaki, additional, Nakato, Aiko, additional, Yogata, Kasumi, additional, Miyazaki, Akiko, additional, Hatakeda, Kentaro, additional, Kumagai, Kazuya, additional, Nishimura, Masahiro, additional, Hitomi, Yuya, additional, Soejima, Hiromichi, additional, Yoshitake, Miwa, additional, Iwamae, Ayako, additional, Furuya, Shizuho, additional, Uesugi, Masayuki, additional, Karouji, Yuzuru, additional, Usui, Tomohiro, additional, Hayashi, Tasuku, additional, Yamamoto, Daiki, additional, Fukai, Ryota, additional, Sugita, Seiji, additional, Cho, Yuichiro, additional, Yumoto, Koki, additional, Yabe, Yuna, additional, Bibring, Jean-Pierre, additional, Pilorget, Cedric, additional, Hamm, Vincent, additional, Brunetto, Rosario, additional, Riu, Lucie, additional, Lourit, Lionel, additional, Loizeau, Damien, additional, Lequertier, Guillaume, additional, Moussi-Soffys, Aurelie, additional, Tachibana, Shogo, additional, Sawada, Hirotaka, additional, Okazaki, Ryuji, additional, Takano, Yoshinori, additional, Sakamoto, Kanako, additional, Miura, Yayoi, additional, Yano, Hajime, additional, Ireland, Trevor, additional, Yamada, Tetsuya, additional, Fujimoto, Masaki, additional, Kitazato, Kohei, additional, Namiki, Noriyuki, additional, Arakawa, Masahiko, additional, Hirata, Naru, additional, Yurimoto, Hisayoshi, additional, Nakamura, Tomoki, additional, Noguchi, Takaaki, additional, Yabuta, Hikaru, additional, Naraoka, Hiroshi, additional, Ito, Motoo, additional, Nakamura, Eizo, additional, Uesugi, Kentaro, additional, Kobayashi, Katsura, additional, Michikami, Tatsuhiro, additional, Kikuchi, Hiroshi, additional, Hirata, Naoyuki, additional, Ishihara, Yoshiaki, additional, Matsumoto, Koji, additional, Noda, Hirotomo, additional, Noguchi, Rina, additional, Shimaki, Yuri, additional, Ogawa, Kazunori, additional, Shirai, Kei, additional, Wada, Koji, additional, Senshu, Hiroki, additional, Yamamoto, Yukio, additional, Morota, Tomokatsu, additional, Honda, Rie, additional, Honda, Chikatoshi, additional, Yokota, Yasuhiro, additional, Matsuoka, Moe, additional, Sakatani, Naoya, additional, Tatsumi, Eri, additional, Miura, Akira, additional, Yamada, Manabu, additional, Fujii, Atsushi, additional, Hirose, Chikako, additional, Hosoda, Satoshi, additional, Ikeda, Hitoshi, additional, Iwata, Takahiro, additional, Kikuchi, Shota, additional, Mimasu, Yuya, additional, Mori, Osamu, additional, Ogawa, Naoko, additional, Ono, Go, additional, Shimada, Takanobu, additional, Soldini, Stefania, additional, Takahashi, Tadateru, additional, Takei, Yuto, additional, Takeuchi, Hiroshi, additional, Tsukizaki, Ryudo, additional, Yoshikawa, Kent, additional, Terui, Fuyuto, additional, Nakazawa, Satoru, additional, Tanaka, Satoshi, additional, Saiki, Takanao, additional, Yoshikawa, Makoto, additional, Watanabe, Sei-ichiro, additional, and Tsuda, Yuichi, additional

Published
2021
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42. Development status of LIDAR on MMX

Author

SENSHU, Hiroki, MIZUNO, Takahide, KONISHI, Akihiro, UMETANI, Kazuhiro, NAKURA, Toru, MATSUMOTO, Koji, NODA, Hirotomo, IKUSE, Yasuyuki, MAYUZUMI, Katsunori, KASE, Teiji, and KASHINE, Hisayoshi

Abstract

第21回宇宙科学シンポジウム (2021年1月6日-7日. オンライン開催), 21st Space Science Symposium (January 6-7, 2021. Online Meeting), 資料番号: SA6000163095, レポート番号: g10-11

Published
2021

43. LCROSS (Lunar Crater Observation and Sensing Satellite) Observation Campaign: Strategies, Implementation, and Lessons Learned

Author

Heldmann, Jennifer L., Colaprete, Anthony, Wooden, Diane H., Ackermann, Robert F., Acton, David D., Backus, Peter R., Bailey, Vanessa, Ball, Jesse G., Barott, William C., Blair, Samantha K., Buie, Marc W., Callahan, Shawn, Chanover, Nancy J., Choi, Young-Jun, Conrad, Al, Coulson, Dolores M., Crawford, Kirk B., DeHart, Russell, de Pater, Imke, Disanti, Michael, Forster, James R., Furusho, Reiko, Fuse, Tetsuharu, Geballe, Tom, Gibson, J. Duane, Goldstein, David, Gregory, Stephen A., Gutierrez, David J., Hamilton, Ryan T., Hamura, Taiga, Harker, David E., Harp, Gerry R., Haruyama, Junichi, Hastie, Morag, Hayano, Yutaka, Hinz, Phillip, Hong, Peng K., James, Steven P., Kadono, Toshihiko, Kawakita, Hideyo, Kelley, Michael S., Kim, Daryl L., Kurosawa, Kosuke, Lee, Duk-Hang, Long, Michael, Lucey, Paul G., Marach, Keith, Matulonis, Anthony C., McDermid, Richard M., McMillan, Russet, Miller, Charles, Moon, Hong-Kyu, Nakamura, Ryosuke, Noda, Hirotomo, Okamura, Natsuko, Ong, Lawrence, Porter, Dallan, Puschell, Jeffery J., Rayner, John T., Rembold, J. Jedadiah, Roth, Katherine C., Rudy, Richard J., Russell, Ray W., Ryan, Eileen V., Ryan, William H., Sekiguchi, Tomohiko, Sekine, Yasuhito, Skinner, Mark A., Sôma, Mitsuru, Stephens, Andrew W., Storrs, Alex, Suggs, Robert M., Sugita, Seiji, Sung, Eon-Chang, Takatoh, Naruhisa, Tarter, Jill C., Taylor, Scott M., Terada, Hiroshi, Trujillo, Chadwick J., Vaitheeswaran, Vidhya, Vilas, Faith, Walls, Brian D., Watanabe, Jun-ihi, Welch, William J., Woodward, Charles E., Yim, Hong-Suh, and Young, Eliot F.

Published
2012
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44. Development of a digital zenith telescope for advanced astrometry

Author

Hanada, Hideo, Araki, Hiroshi, Tazawa, Seiichi, Tsuruta, Seiitsu, Noda, Hirotomo, Asari, Kazuyoshi, Sasaki, Sho, Funazaki, Ken’ichi, Satoh, Atsushi, Taniguchi, Hideo, Kikuchi, Mamoru, Takahashi, Tomoe, Yamazaki, Atsumu, Ping, JinSong, Kawano, Nobuyuki, Petrova, Natalia, Gouda, Naoteru, Yano, Taihei, Yamada, Yoshiyuki, Niwa, Yoshito, Kono, Yusuke, and Iwata, Takahiro

Published
2012
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47. Accuracy assessment of lunar topography models

Author

Fok, H. S., Shum, C. K., Yi, Yuchan, Araki, Hiroshi, Ping, Jinsong, Williams, James G., Fotopoulos, Georgia, Noda, Hirotomo, Goossens, Sander, Huang, Qian, Ishihara, Yoshiaki, Matsumoto, Koji, Oberst, Jürgen, and Sasaki, Sho

Published
2011
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50. Overview of Differential VLBI Observations of Lunar Orbiters in SELENE (Kaguya) for Precise Orbit Determination and Lunar Gravity Field Study

Author

Hanada, Hideo, Iwata, Takahiro, Liu, Qinghui, Kikuchi, Fuyuhiko, Matsumoto, Koji, Goossens, Sander, Harada, Yuji, Asari, Kazuyoshi, Ishikawa, Toshiaki, Ishihara, Yoshiaki, Noda, Hirotomo, Tsuruta, Seiitsu, Petrova, Natalia, Kawano, Nobuyuki, Sasaki, Sho, Sato, Kaori, Namiki, Noriyuki, Kono, Yusuke, Iwadate, Kenzaburo, Kameya, Osamu, Shibata, Katsunori M., Tamura, Yoshiaki, Kamata, Shunichi, Yahagi, Yukihiro, Masui, Wataru, Tanaka, Koji, Maejima, Hironori, Hong, Xiaoyu, Ping, Jinsong, Shi, Xian, Huang, Qian, Aili, Yusufu, Ellingsen, Simon, and Schlüter, Wolfgang

Published
2010
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