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Thermal Infrared Im...
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Okada, TatsuakiInstitute of Space and Astronautical Science, Japan; Aerospace Exploration Agency, Sagamihara, Japan Graduate School of Science, The University of Tokyo, Bunkyo, Tokyo, Japan
(author)
Thermal Infrared Imaging Experiments of C-Type Asteroid 162173 Ryugu on Hayabusa2
- Article/chapterEnglish2017
Publisher, publication year, extent ...
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2016-09-27
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Springer Science and Business Media LLC,2017
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:ltu-82523
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https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-82523URI
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https://doi.org/10.1007/s11214-016-0286-8DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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The thermal infrared imager TIR onboard Hayabusa2 has been developed to investigate thermo-physical properties of C-type, near-Earth asteroid 162173 Ryugu. TIR is one of the remote science instruments on Hayabusa2 designed to understand the nature of a volatile-rich solar system small body, but it also has significant mission objectives to provide information on surface physical properties and conditions for sampling site selection as well as the assessment of safe landing operations. TIR is based on a two-dimensional uncooled micro-bolometer array inherited from the Longwave Infrared Camera LIR on Akatsuki (Fukuhara et al., 2011). TIR takes images of thermal infrared emission in 8 to 12 μm with a field of view of 16×12∘16×12∘ and a spatial resolution of 0.05∘0.05∘ per pixel. TIR covers the temperature range from 150 to 460 K, including the well calibrated range from 230 to 420 K. Temperature accuracy is within 2 K or better for summed images, and the relative accuracy or noise equivalent temperature difference (NETD) at each of pixels is 0.4 K or lower for the well-calibrated temperature range. TIR takes a couple of images with shutter open and closed, the corresponding dark frame, and provides a true thermal image by dark frame subtraction. Data processing involves summation of multiple images, image processing including the StarPixel compression (Hihara et al., 2014), and transfer to the data recorder in the spacecraft digital electronics (DE). We report the scientific and mission objectives of TIR, the requirements and constraints for the instrument specifications, the designed instrumentation and the pre-flight and in-flight performances of TIR, as well as its observation plan during the Hayabusa2 mission.
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Fukuhara, TetsuyaRikkyo University, Tokyo, Japan
(author)
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Tanaka, SatoshiInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
(author)
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Taguchi, MakotoRikkyo University, Tokyo, Japan
(author)
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Imamura, TakeshiGraduate School of Frontiers Sciences, The University of Tokyo, Kashiwa, Japan
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Arai, TakehikoInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
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Senshu, HirokiPlanetary Exploration Research Center, Chiba Institute of Technology, Narashino, Japan
(author)
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Ogawa, YoshikoCenter for Advanced Information Science and Technology, University of Aizu, Aizu-Wakamatsu, Japan
(author)
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Demura, HirohideCenter for Advanced Information Science and Technology, University of Aizu, Aizu-Wakamatsu, Japan
(author)
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Kitazato, KoheiCenter for Advanced Information Science and Technology, University of Aizu, Aizu-Wakamatsu, Japan
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Nakamura, RyosukeNational Institute for Advanced Industrial Science and Technology, Tokyo, Japan
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Kouyama, ToruNational Institute for Advanced Industrial Science and Technology, Tokyo, Japan
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Sekiguchi, TomohikoHokkaido University of Education, Asahikawa, Japan
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Hasegawa, SunaoInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
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Matsunaga, TsuneoCenter for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, Japan
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Wada, TakehikoInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
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Takita, JunGraduate School of Science, The University of Tokyo, Bunkyo, Tokyo, Japan
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Sakatani, NaoyaInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
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Horikawa, YamatoDepartment of Space and Astronautical Science, School of Physical Sciences, Graduate University for Advanced Studies, Sagamihara, Japan
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Endo, KenCenter for Advanced Information Science and Technology, University of Aizu, Aizu-Wakamatsu, Japan
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Helbert, JörnInstitute of Planetary Research, German Aerospace Center (DLR), Berlin, Germany
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Müller, Thomas G.Max-Planck Institute for Extraterrestrial Physics, Garching, Germany
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Hagermann, AxelThe Open University, Milton Keynes, UK(Swepub:ltu)axehag
(author)
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Institute of Space and Astronautical Science, Japan; Aerospace Exploration Agency, Sagamihara, Japan Graduate School of Science, The University of Tokyo, Bunkyo, Tokyo, JapanRikkyo University, Tokyo, Japan
(creator_code:org_t)
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In:Space Science Reviews: Springer Science and Business Media LLC208:1-4, s. 255-2860038-63081572-9672
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Okada, Tatsuaki
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Fukuhara, Tetsuy ...
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Tanaka, Satoshi
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Taguchi, Makoto
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Imamura, Takeshi
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Arai, Takehiko
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Senshu, Hiroki
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Hasegawa, Sunao
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Matsunaga, Tsune ...
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Wada, Takehiko
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Takita, Jun
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Sakatani, Naoya
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Horikawa, Yamato
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Endo, Ken
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Helbert, Jörn
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Müller, Thomas G ...
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Hagermann, Axel
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