Search Results - "Tatsumi, Eri"

Cratering efficiency on coarse-grain targets: Implications for the dynamical evolution of asteroid 25143 Itokawa by Tatsumi, Eri, Sugita, Seiji

“…•Cratering experiments on coarse-grained targets are performed.•A new crater size scaling on coarse-grained targets is derived.•Projectile size and impact…”
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On the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspective by NAKAMURA, Eizo, KOBAYASHI, Katsura, TANAKA, Ryoji, KUNIHIRO, Tak, KITAGAWA, Hiroshi, POTISZIL, Christian, OTA, Tsutomu, SAKAGUCHI, Chie, YAMANAKA, Masahiro, RATNAYAKE, Dilan M., TRIPATHI, Havishk, KUMAR, Rahul, AVRAMESCU, Maya-Liliana, TSUCHIDA, Hidehisa, YACHI, Yusuke, MIURA, Hitoshi, ABE, Masanao, FUKAI, Ryota, FURUYA, Shizuho, HATAKEDA, Kentaro, HAYASHI, Tasuku, HITOMI, Yuya, KUMAGAI, Kazuya, MIYAZAKI, Akiko, NAKATO, Aiko, NISHIMURA, Masahiro, OKADA, Tatsuaki, SOEJIMA, Hiromichi, SUGITA, Seiji, SUZUKI, Ayako, USUI, Tomohiro, YADA, Toru, YAMAMOTO, Daiki, YOGATA, Kasumi, YOSHITAKE, Miwa, 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, OKAMOTO, Chisato, ONO, Go, OZAKI, Masanobu, SAIKI, Takanao, SAKATANI, Naoya, SAWADA, Hirotaka, SENSHU, Hiroki, SHIMAKI, Yuri, SHIRAI, Kei, 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, FUJIMOTO, Masaki, WATANABE, Sei-ichiro, TSUDA, Yuichi

“…Presented here are the observations and interpretations from a comprehensive analysis of 16 representative particles returned from the C-type asteroid Ryugu by…”
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Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu by 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, 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, 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, Tsuda, Yuichi

“…C-type asteroids 1 are considered to be primitive small Solar System bodies enriched in water and organics, providing clues to the origin and evolution of the…”
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Updated inflight calibration of Hayabusa2's optical navigation camera (ONC) for scientific observations during the cruise phase by Tatsumi, Eri, Kouyama, Toru, Suzuki, Hidehiko, Yamada, Manabu, Sakatani, Naoya, Kameda, Shingo, Yokota, Yasuhiro, Honda, Rie, Morota, Tomokatsu, Moroi, Keiichi, Tanabe, Naoya, Kamiyoshihara, Hiroaki, Ishida, Marika, Yoshioka, Kazuo, Sato, Hiroyuki, Honda, Chikatoshi, Hayakawa, Masahiko, Kitazato, Kohei, Sawada, Hirotaka, Sugita, Seiji

“…The Optical Navigation Cameras (ONC-T, ONC-W1, ONC-W2) onboard Hayabusa2 are also being used for scientific observations of the mission target, C-complex…”
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Spectrally blue hydrated parent body of asteroid (162173) Ryugu by Tatsumi, Eri, Sakatani, Naoya, Riu, Lucie, Matsuoka, Moe, Honda, Rie, Morota, Tomokatsu, Kameda, Shingo, Nakamura, Tomoki, Zolensky, Michael, Brunetto, Rosario, Hiroi, Takahiro, Sasaki, Sho, Watanabe, Sei’ichiro, Tanaka, Satoshi, Takita, Jun, Pilorget, Cédric, de León, Julia, Popescu, Marcel, Rizos, Juan Luis, Licandro, Javier, Palomba, Ernesto, Domingue, Deborah, Vilas, Faith, Campins, Humberto, Cho, Yuichiro, Yoshioka, Kazuo, Sawada, Hirotaka, Yokota, Yasuhiro, Hayakawa, Masahiko, Yamada, Manabu, Kouyama, Toru, Suzuki, Hidehiko, Honda, Chikatoshi, Ogawa, Kazunori, Kitazato, Kohei, Hirata, Naru, Hirata, Naoyuki, Tsuda, Yuichi, Yoshikawa, Makoto, Saiki, Takanao, Terui, Fuyuto, Nakazawa, Satoru, Takei, Yuto, Takeuchi, Hiroshi, Yamamoto, Yukio, Okada, Tatsuaki, Shimaki, Yuri, Shirai, Kei, Sugita, Seiji

“…Ryugu is a carbonaceous rubble-pile asteroid visited by the Hayabusa2 spacecraft. Small rubble pile asteroids record the thermal evolution of their much larger…”
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Post-arrival calibration of Hayabusa2's optical navigation cameras (ONCs): Severe effects from touchdown events by Kouyama, Toru, Tatsumi, Eri, Yokota, Yasuhiro, Yumoto, Koki, Yamada, Manabu, Honda, Rie, Kameda, Shingo, Suzuki, Hidehiko, Sakatani, Naoya, Hayakawa, Masahiko, Morota, Tomokatsu, Matsuoka, Moe, Cho, Yuichiro, Honda, Chikatoshi, Sawada, Hirotaka, Yoshioka, Kazuo, Sugita, Seiji

“…Accurate measurements of the surface brightness and its spectrophotometric properties are essential for obtaining reliable observations of the physical and…”
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Vis-NIR disk-integrated photometry of asteroid 25143 Itokawa around opposition by AMICA/Hayabusa by Tatsumi, Eri, Domingue, Deborah, Hirata, Naru, Kitazato, Kohei, Vilas, Faith, Lederer, Susan, Weissman, Paul R., Lowry, Stephen C., Sugita, Seiji

“…•Photometry of the S-type Itokawa observed by multi-band filters is examined.•AMICA/Hayabusa successfully observed the opposition surge of the asteroid…”
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Resurfacing processes on asteroid (162173) Ryugu caused by an artificial impact of Hayabusa2's Small Carry-on Impactor by Honda, Rie, Arakawa, Masahiko, Shimaki, Yuri, Shirai, Kei, Yokota, Yasuhiro, Kadono, Toshihiko, Wada, Koji, Ogawa, Kazunori, Ishibashi, Ko, Sakatani, Naoya, Nakazawa, Satoru, Yasui, Minami, Morota, Tomokatsu, Kameda, Shingo, Tatsumi, Eri, Yamada, Manabu, Kouyama, Toru, Cho, Yuichiro, Matsuoka, Moe, Suzuki, Hidehiko, Honda, Chikatoshi, Hayakawa, Masahiko, Yoshioka, Kazuo, Hirata, Naru, Hirata, Naoyuki, Sawada, Hirotaka, Sugita, Seiji, Saiki, Takanao, Imamura, Hiroshi, Takagi, Yasuhiko, Yano, Hajime, Okamoto, Chisato, Tsuda, Yuichi, Iijima, Yu-ichi

“…The resurfacing process on Ryugu accompanying the artificial impact crater formation by Hayabusa2's Small Carry-on Impactor (SCI) was studied by comparing pre-…”
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Ground-based characterization of Hayabusa2 mission target asteroid 162173 Ryugu: constraining mineralogical composition in preparation for spacecraft operations by Le Corre, Lucille, Sanchez, Juan A, Reddy, Vishnu, Takir, Driss, Cloutis, Edward A, Thirouin, Audrey, Becker, Kris J, Li, Jian-Yang, Sugita, Seiji, Tatsumi, Eri

“…Abstract Asteroids that are targets of spacecraft missions are interesting because they present us with an opportunity to validate ground-based spectral…”
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Spectral characterization of the craters of Ryugu as observed by the NIRS3 instrument on-board Hayabusa2 by Riu, Lucie, Pilorget, Cédric, Milliken, Ralph, Kitazato, Kohei, Nakamura, Tomoki, Cho, Yuichiro, Matsuoka, Moe, Sugita, Seiji, Abe, Masanao, Matsuura, Shuji, Ohtake, Makiko, Kameda, Shingo, Sakatani, Naoya, Tatsumi, Eri, Yokota, Yasuhiro, Iwata, Takahiro

“…C-type rubble pile asteroid (162173) Ryugu was observed and characterized up close for a year and a half by the instruments on-board the Japanese Aerospace…”
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Inflight calibration of the optical navigation camera for the extended mission phase of Hayabusa2 by Yamada, Manabu, Kouyama, Toru, Yumoto, Koki, Tatsumi, Eri, Takaki, Naofumi, Yokota, Yasuhiro, Morota, Tomokatsu, Sakatani, Naoya, Hayakawa, Masahiko, Matsuoka, Moe, Honda, Rie, Honda, Chikatoshi, Kameda, Shingo, Suzuki, Hidehiko, Cho, Yuichiro, Yoshioka, Kazuo, Ogawa, Kazunori, Shirai, Kei, Sawada, Hirotaka, Sugita, Seiji

“…After delivering its sample capsule to Earth, the Hayabusa2 spacecraft started its extended mission to perform a flyby of asteroid 2001 CC 21 in 2026 and…”
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Crater depth-to-diameter ratios on asteroid 162173 Ryugu by Noguchi, Rina, Hirata, Naoyuki, Hirata, Naru, Shimaki, Yuri, Nishikawa, Naoki, Tanaka, Sayuri, Sugiyama, Takaaki, Morota, Tomokatsu, Sugita, Seiji, Cho, Yuichiro, Honda, Rie, Kameda, Shingo, Tatsumi, Eri, Yoshioka, Kazuo, Sawada, Hirotaka, Yokota, Yasuhiro, Sakatani, Naoya, Hayakawa, Masahiko, Matsuoka, Moe, Yamada, Manabu, Kouyama, Toru, Suzuki, Hidehiko, Honda, Chikatoshi, Ogawa, Kazunori, Kanamaru, Masanori, Watanabe, Sei-ichiro

“…The near-Earth asteroid 162173 Ryugu, the target of the Hayabusa2 mission, is noted to be a spinning top-shaped rubble-pile. Craters are among the most…”
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Hayabusa2 Landing Site Selection: Surface Topography of Ryugu and Touchdown Safety by Kikuchi, Shota, Watanabe, Sei-ichiro, Saiki, Takanao, Yabuta, Hikaru, Sugita, Seiji, Morota, Tomokatsu, Hirata, Naru, Hirata, Naoyuki, Michikami, Tatsuhiro, Honda, Chikatoshi, Yokota, Yashuhiro, Honda, Rie, Sakatani, Naoya, Okada, Tatsuaki, Shimaki, Yuri, Matsumoto, Koji, Noguchi, Rina, Takei, Yuto, Terui, Fuyuto, Ogawa, Naoko, Yoshikawa, Kent, Ono, Go, Mimasu, Yuya, Sawada, Hirotaka, Ikeda, Hitoshi, Hirose, Chikako, Takahashi, Tadateru, Fujii, Atsushi, Yamaguchi, Tomohiro, Ishihara, Yoshiaki, Nakamura, Tomoki, Kitazato, Kohei, Wada, Koji, Tachibana, Shogo, Tatsumi, Eri, Matsuoka, Moe, Senshu, Hiroki, Kameda, Shingo, Kouyama, Toru, Yamada, Manabu, Shirai, Kei, Cho, Yuichiro, Ogawa, Kazunori, Yamamoto, Yukio, Miura, Akira, Iwata, Takahiro, Namiki, Noriyuki, Hayakawa, Masahiko, Abe, Masanao, Tanaka, Satoshi, Yoshikawa, Makoto, Nakazawa, Satoru, Tsuda, Yuichi

“…One of the primary goals of Hayabusa2 is to land on the asteroid Ryugu to collect its surface materials. The key for a successful touchdown is to find a…”
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Spectral decomposition of asteroid Itokawa based on principal component analysis by Koga, Sumire C., Sugita, Seiji, Kamata, Shunichi, Ishiguro, Masateru, Hiroi, Takahiro, Tatsumi, Eri, Sasaki, Sho

“…•The first principal component of Itokawa spectra is due to space weathering.•The Itokawa surface spectra span widely from Q-type to S-type spectra.•The…”
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Heliocentric distance dependence of zodiacal light observed by Hayabusa2 by Tsumura, Kohji, Matsuura, Shuji, Sano, Kei, Iwata, Takahiro, Yano, Hajime, Kitazato, Kohei, Takimoto, Kohji, Yamada, Manabu, Morota, Tomokatsu, Kouyama, Toru, Hayakawa, Masahiko, Yokota, Yasuhiro, Tatsumi, Eri, Matsuoka, Moe, Sakatani, Naoya, Honda, Rie, Kameda, Shingo, Suzuki, Hidehiko, Cho, Yuichiro, Yoshioka, Kazuo, Ogawa, Kazunori, Shirai, Kei, Sawada, Hirotaka, Sugita, Seiji

“…Zodiacal light (ZL) is sunlight scattered by interplanetary dust particles (IDPs) at optical wavelengths. The spatial distribution of IDPs in the Solar System…”
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Site selection for the Hayabusa2 artificial cratering and subsurface material sampling on Ryugu by Kikuchi, Shota, Watanabe, Sei-ichiro, Wada, Koji, Saiki, Takanao, Yabuta, Hikaru, Sugita, Seiji, Abe, Masanao, Arakawa, Masahiko, Cho, Yuichiro, Hayakawa, Masahiko, Hirata, Naoyuki, Hirata, Naru, Honda, Chikatoshi, Honda, Rie, Ishibashi, Ko, Ishihara, Yoshiaki, Iwata, Takahiro, Kadono, Toshihiko, Kameda, Shingo, Kitazato, Kohei, Kouyama, Toru, Matsumoto, Koji, Matsuoka, Moe, Michikami, Tatsuhiro, Mimasu, Yuya, Miura, Akira, Morota, Tomokatsu, Nakamura, Tomoki, Nakazawa, Satoru, Namiki, Noriyuki, Noguchi, Rina, Ogawa, Kazunori, Ogawa, Naoko, Okada, Tatsuaki, Ono, Go, Sakatani, Naoya, Sawada, Hirotaka, Senshu, Hiroki, Shimaki, Yuri, Shirai, Kei, Tachibana, Shogo, Takei, Yuto, Tanaka, Satoshi, Tatsumi, Eri, Terui, Fuyuto, Yamada, Manabu, Yamamoto, Yukio, Yokota, Yasuhiro, Yoshikawa, Kent, Yoshikawa, Makoto, Tsuda, Yuichi

“…Hayabusa2 took on the challenge of collecting fresh subsurface samples from asteroid (162173) Ryugu during its second touchdown operation. For this ambitious…”
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Space weathering acts strongly on the uppermost surface of Ryugu by Matsuoka, Moe, Kagawa, Ei-ichi, Amano, Kana, Nakamura, Tomoki, Tatsumi, Eri, Osawa, Takahito, Hiroi, Takahiro, Milliken, Ralph, Domingue, Deborah, Takir, Driss, Brunetto, Rosario, Barucci, Antonella, Kitazato, Kohei, Sugita, Seiji, Fujioka, Yuri, Sasaki, Osamu, Kobayashi, Shiho, Iwata, Takahiro, Morota, Tomokatsu, Yokota, Yasuhiro, Kouyama, Toru, Honda, Rie, Kameda, Shingo, Cho, Yuichiro, Yoshioka, Kazuo, Sawada, Hirotaka, Hayakawa, Masahiko, Sakatani, Naoya, Yamada, Manabu, Suzuki, Hidehiko, Honda, Chikatoshi, Ogawa, Kazunori, Shirai, Kei, Lantz, Cateline, Rubino, Stefano, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Tachibana, Shogo, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, Tsuda, Yuichi

“…Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the…”
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Effects of Productive Activities with Reminiscence in Occupational Therapy for People with Dementia: A Pilot Randomized Controlled Study by Nakamae, Toshimichi, Yotsumoto, Kayano, Tatsumi, Eri, Hashimoto, Takeshi

“…Summary Objective/Background Although a number of studies have considered the effects of reminiscence therapy, none have examined whether a therapy that…”
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Alignment determination of the Hayabusa2 laser altimeter (LIDAR) by 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, Yoshioka, Kazuo

“…In this study, we determined the alignment of the laser altimeter aboard Hayabusa2 with respect to the spacecraft using in-flight data. Since the laser…”
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YORP Effect on Asteroid 162173 Ryugu: Implications for the Dynamical History by Kanamaru, Masanori, Sasaki, Sho, Morota, Tomokatsu, Cho, Yuichiro, Tatsumi, Eri, Hirabayashi, Masatoshi, Hirata, Naru, Senshu, Hiroki, Shimaki, Yuri, Sakatani, Naoya, Tanaka, Satoshi, Okada, Tatsuaki, Usui, Tomohiro, Sugita, Seiji, Watanabe, Sei‐ichiro

“…Asteroid 162173 Ryugu is a carbonaceous asteroid that was visited by Japan's Hayabusa2 spacecraft in 2018. The formation mechanism of the “spinning‐top” shape…”
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