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Citation

Okada T, Fukuhara T, Tanaka S, Taguchi M, Arai T, Senshu H, Demura H, Ogawa Y, Kouyama T, Sakatani N, Takita J, Sekiguchi T, Helbert J, Mueller TG & Hagermann A (2018) Earth and moon observations by thermal infrared imager on Hayabusa2 and the application to detectability of asteroid 162173 Ryugu. Planetary and Space Science, 158, pp. 46-52. https://doi.org/10.1016/j.pss.2018.05.007

Abstract
Thermal Infrared Imager TIR on Hayabusa2 has proven its in-flight performance to detect celestial bodies during the cruise phase, especially by the observations of the Earth and the Moon before and after the Earth swing-by on 3rd of December 2015. The result indicates that the target C-type asteroid 162173 Ryugu will be detected from the distance of 3000?km?at the beginning of the approach phase, and that a C-type small moon larger than 1?m will be detected from the home position, 20?km from the asteroid, if it orbits around the asteroid.

Keywords
Thermo-physical properties; Thermo-physical asteroid model; Thermal inertia; TIR; Hayabusa2

Notes
Additional co-authors: Hayabusa2 TIR Team

Journal
Planetary and Space Science: Volume 158