[P-PS03] Solar System Small Bodies: A New Frontier Arising Hayabusa 2, OSIRIS-REx and Other Projects

[PPS03-P07] Data Release of Asteroid 162173 Ryugu by Observation of Thermal Infrared Imager onboard Hayabusa2

*Takehiko Arai¹, Hirohide Demura², Toru Kouyama⁷, Naoya Sakatani³, Kentaro Suko², Yuri Shimaki³, Hiroki Senshu⁵, Tomohiko Sekiguchi⁶, Yoshiko Ogawa², Sunao Hasegawa³, Takehiko Wada³, Takeshi Imamura¹⁰, Tsuneo Matsunaga⁹, Jun Takita⁸, Kohei Kitazato², Makoto Taguchi⁴, Tetsuya Fukuhara⁴, Satoshi Tanaka³, Tatsuaki Okada³ (1.Ashikaga University, 2.The University of Aizu, 3.Japan Aerospace Exploration Agency (JAXA), 4.Rikkyo University, 5.Chiba Institute of Technology, 6.Hokkaido University of Education, 7.National Institute of Advanced Industrial Science and Technology (AIST), 8.Hokkaido Kitami Hokuto High School, 9.National Institute for Environmental Studies (NIES), 10.The University of Tokyo)

Keywords:Hayabusa2, Thermal Infrared Imager, Asteroid Ryugu

The thermal infrared imager (TIR) onboard the Hayabusa2 spacecraft performed thermography of the asteroid 162173 Ryugu through in-situ observations from 2018 to 2019. The primary purpose of TIR is to determine the global thermophysical properties of the asteroid and to reveal the evolutional history such as physical properties of the coalesced bodies, orbital changes due to radiation force, and the thermal evolution. This study introduces observed data of TIR and public data for scientists. The data are released by JAXA data archives (DARTS) and NASA PDS.