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Inflight calibration of the optical navigation camera for the extended mission phase of Hayabusa2 [PDF]

Earth, Planets and Space, 2023
After delivering its sample capsule to Earth, the Hayabusa2 spacecraft started its extended mission to perform a flyby of asteroid 2001 CC21 in 2026 and rendezvous with asteroid 1998 KY26 in 2031.
Manabu Yamada, Toru Kouyama, Koki Yumoto, Eri Tatsumi, Naofumi Takaki, Yasuhiro Yokota, Tomokatsu Morota, Naoya Sakatani, Masahiko Hayakawa, Moe Matsuoka, Rie Honda, Chikatoshi Honda, Shingo Kameda, Hidehiko Suzuki, Yuichiro Cho, Kazuo Yoshioka, Kazunori Ogawa, Kei Shirai, Hirotaka Sawada, Seiji Sugita   +19 more
doaj   +3 more sources

Hayabusa2 extended mission target asteroid 1998 KY26 is smaller and rotating faster than previously known [PDF]

Nature Communications
Understanding the physical characteristics of small Solar System bodies is important not only for refining formation and evolution models but also for space mission operations.
T. Santana-Ros, P. Bartczak, K. Muinonen, A. Rożek, T. Müller, M. Hirabayashi, D. Farnocchia, M. Micheli, R. E. Cannon, M. Brozović, O. Hainaut, D. Oszkiewicz, A. K. Virkki, L. A. M. Benner, A. Campo Bagatin, P. G. Benavidez, A. Cabrera-Lavers, C. E. Martínez-Vázquez, K. Vivas   +18 more
doaj   +3 more sources

Size Constraint on Hayabusa2 Extended Mission Rendezvous Target 1998 KY26 via VLT/VISIR Nondetection

The Astronomical Journal
1998 KY _26 is a tiny near-Earth asteroid ( H = 26.1) discovered in 1998. It has been selected as the target of the Hayabusa2 extended mission, which will rendezvous with 1998 KY _26 in 2031.
Jin Beniyama, Thomas G. Müller, Marco Delbo, Eric Pantin, Olivier R. Hainaut, Marco Micheli, Michaël Marsset   +6 more
doaj   +3 more sources

Asteroid Ryugu before the Hayabusa2 encounter [PDF]

Progress in Earth and Planetary Science, 2018
Asteroid (162173) Ryugu is the target object of Hayabusa2, an asteroid exploration and sample return mission led by Japan Aerospace Exploration Agency (JAXA).
Koji Wada, Matthias Grott, Patrick Michel, Kevin J. Walsh, Antonella M. Barucci, Jens Biele, Jürgen Blum, Carolyn M. Ernst, Jan Thimo Grundmann, Bastian Gundlach, Axel Hagermann, Maximilian Hamm, Martin Jutzi, Myung-Jin Kim, Ekkehard Kührt, Lucille Le Corre, Guy Libourel, Roy Lichtenheldt, Alessandro Maturilli, Scott R. Messenger, Tatsuhiro Michikami, Hideaki Miyamoto, Stefano Mottola, Thomas Müller, Akiko M. Nakamura, Larry R. Nittler, Kazunori Ogawa, Tatsuaki Okada, Ernesto Palomba, Naoya Sakatani, Stefan E. Schröder, Hiroki Senshu, Driss Takir, Michael E. Zolensky, International Regolith Science Group (IRSG) in Hayabusa2 project   +34 more
doaj   +4 more sources

Derivation of 1.064 μm normal albedos on the C-type asteroid Ryugu from laser pulse intensity measurement of the Hayabusa2 LIDAR [PDF]

Earth, Planets and Space, 2022
Japanese asteroid explorer Hayabusa2 arrived at C-type asteroid 162,173 Ryugu in June 2018. The laser altimeter (LIDAR) onboard Hayabusa2 measured its own transmitted laser and returned pulse intensities from a Ryugu surface until November 2019.
Ryuhei Yamada, Keiko Yamamoto, Shoko Oshigami, Hiroshi Araki, Hiroki Senshu, Hirotomo Noda, Noriyuki Namiki, Koji Matsumoto, Fumi Yoshida, Shinsuke Abe, Naru Hirata, Sho Sasaki, Takahide Mizuno   +12 more
doaj   +2 more sources

Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu [PDF]

Nature Astronomy, 2021
C-type asteroids1 are considered to be primitive small Solar System bodies enriched in water and organics, providing clues to the origin and evolution of the Solar System and the building blocks of life.
Toru Yada, Masanao Abe, Tatsuaki Okada, Aiko Nakato, Kasumi Yogata, Akiko Miyazaki, Kentaro Hatakeda, Kazuya Kumagai, Masahiro Nishimura, Yuya Hitomi, Hiromichi Soejima, Miwa Yoshitake, Ayako Iwamae, Shizuho Furuya, Masayuki Uesugi, Yuzuru Karouji, Tomohiro Usui, Tasuku Hayashi, Daiki Yamamoto, Ryota Fukai, Seiji Sugita, Yuichiro Cho, Koki Yumoto, Yuna Yabe, Jean‐Pierre Bibring, C. Pilorget, Vincent Hamm, R. Brunetto, Lucie Riu, Lionel Lourit, D. Loizeau, Guillaume Lequertier, Aurélie Moussi‐Soffys, Shogo Tachibana, Hirotaka Sawada, Ryuji Okazaki, Yoshinori Takano, Kanako Sakamoto, Yayoi N. Miura, Hajime Yano, T. R. Ireland, Tetsuya Yamada, M. Fujimoto, K. Kitazato, Noriyuki Namiki, Masahiko Arakawa, Naru Hirata, Hisayoshi Yurimoto, Tomoki Nakamura, T. Noguchi, Hikaru Yabuta, Hiroshi Naraoka, Motoo Ito, Eizo Nakamura, Kentaro Uesugi, K. Kobayashi, Tatsuhiro Michikami, Hiroshi Kikuchi, Naoyuki Hirata, Yoshiaki Ishihara, Koji Matsumoto, Hirotomo Noda, Rina Noguchi, Yuri Shimaki, K. Shirai, Kazunori Ogawa, Koji Wada, Hiroki Senshu, Yukio Yamamoto, Tomokatsu Morota, Rie Honda, Chikatoshi Honda, Y. Yokota, M. Matsuoka, Naoya Sakatani, Eri Tatsumi, Akira Miura, Manabu Yamada, Atsushi Fujii, Chikako Hirose, S Hosoda, Hitoshi Ikeda, Takahiro Iwata, Shota Kikuchi, Yuya Mimasu, Osamu Mori, Naoko Ogawa, Go Ono, Takanobu Shimada, Stefania Soldini, T. Takahashi, Yuto Takei, Hiroshi Takeuchi, Ryudo Tsukizaki, Kent Yoshikawa, Fuyuto Terui, Satoru Nakazawa, Satoshi Tanaka, Takanao Saiki, Makoto Yoshikawa   +99 more
openalex   +2 more sources

Special issue “New insights in planetary science with Hayabusa, Hayabusa2, and future space missions” [PDF]

Earth, Planets and Space
Tatsuaki Okada, Kevin Righter, Rosario Brunetto, Toru Yada, Harold C. Connolly   +4 more
doaj   +3 more sources

Ryugu asteroid sample return provides a natural laboratory for primordial chemical evolution [PDF]

Nature Communications, 2023
The samples returned from near-Earth asteroid (162173) Ryugu provide a pristine record of the 4.6 billion years since the birth of the Solar System. The Hayabusa2 initial analysis team has integrated a range of analytical techniques to investigate Ryugu ...
Yasuhiro Oba, Yoshinori Takano, Jason P. Dworkin, Hiroshi Naraoka   +3 more
doaj   +2 more sources

Constraining surface properties of asteroid (162173) Ryugu from numerical simulations of Hayabusa2 mission impact experiment [PDF]

Nature Communications, 2022
Hayabusa2 mission impact experiment on asteroid Ryugu formed a crater larger than expected. Here, the authors show numerical impact simulations and find that the target cohesion may be very low, indicating the Hayabusa2 impact experiment probably ...
Martin Jutzi, Sabina D. Raducan, Yun Zhang, Patrick Michel, Masahiko Arakawa   +4 more
doaj   +2 more sources

Organic Matter in the Asteroid Ryugu: What We Know So Far [PDF]

Life, 2023
The Hayabusa2 mission was tasked with returning samples from the C-complex asteroid Ryugu (1999 JU3), in order to shed light on the formation, evolution and composition of such asteroids.
Christian Potiszil, Masahiro Yamanaka, Chie Sakaguchi, Tsutomu Ota, Hiroshi Kitagawa, Tak Kunihiro, Ryoji Tanaka, Katsura Kobayashi, Eizo Nakamura   +8 more
doaj   +2 more sources