Earth and moon observations by thermal infrared imager on Hayabusa2 and the application to detectability of asteroid 162173 Ryugu

作者: Tatsuaki Okada , Tetsuya Fukuhara , Satoshi Tanaka , Makoto Taguchi , Takehiko Arai

DOI: 10.1016/J.PSS.2018.05.007

关键词: Phase (waves)AstrobiologyHome positionThermal infraredEarth (classical element)GeologyAsteroid

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

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