Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/26994
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dc.contributor.authorOkada, Tatsuaki-
dc.contributor.authorFukuhara, Tetsuya-
dc.contributor.authorTanaka, Satoshi-
dc.contributor.authorTaguchi, Makoto-
dc.contributor.authorImamura, Takeshi-
dc.contributor.authorArai, Takehiko-
dc.contributor.authorSenshu, Hiroki-
dc.contributor.authorOgawa, Yoshiko-
dc.contributor.authorDemura, Hirohide-
dc.contributor.authorKitazato, Kohei-
dc.contributor.authorNakamura, Ryosuke-
dc.contributor.authorKouyama, Toru-
dc.contributor.authorSekiguchi, Tomohiko-
dc.contributor.authorHasegawa, Sunao-
dc.contributor.authorHagermann, Axel-
dc.date.accessioned2018-04-14T00:52:10Z-
dc.date.available2018-04-14T00:52:10Z-
dc.date.issued2017-07-
dc.identifier.urihttp://hdl.handle.net/1893/26994-
dc.description.abstractThe 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 ∘ and a spatial resolution of 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.en_UK
dc.language.isoen-
dc.publisherSpringer-
dc.relationOkada T, Fukuhara T, Tanaka S, Taguchi M, Imamura T, Arai T, Senshu H, Ogawa Y, Demura H, Kitazato K, Nakamura R, Kouyama T, Sekiguchi T, Hasegawa S & Hagermann A (2017) Thermal Infrared Imaging Experiments of C-Type Asteroid 162173 Ryugu on Hayabusa2, Space Science Reviews, 208 (1-4), pp. 255-286.-
dc.rights© The Author(s) 2016 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.-
dc.subjectThermographyen_UK
dc.subjectThermal inertiaen_UK
dc.subjectTemperatureen_UK
dc.subjectNear-Earth asteroiden_UK
dc.subjectPlanetary explorationen_UK
dc.titleThermal Infrared Imaging Experiments of C-Type Asteroid 162173 Ryugu on Hayabusa2en_UK
dc.typeJournal Articleen_UK
dc.identifier.doihttp://dx.doi.org/10.1007/s11214-016-0286-8-
dc.citation.jtitleSpace Science Reviews-
dc.citation.issn0038-6308-
dc.citation.volume208-
dc.citation.issue1-4-
dc.citation.spage255-
dc.citation.epage286-
dc.citation.publicationstatusPublished-
dc.citation.peerreviewedRefereed-
dc.type.statusPublisher version (final published refereed version)-
dc.citation.date27/09/2017-
dc.description.notesAdditional co-authors: Tsuneo Matsunaga, Takehiko Wada, Jun Takita, Naoya Sakatani, Yamato Horikawa, Ken Endo, Jörn Helbert, and Thomas G. Mülleren_UK
dc.contributor.affiliationUniversity of Tokyo-
dc.contributor.affiliationRikkyo University-
dc.contributor.affiliationJapan Aerospace Exploration Agency-
dc.contributor.affiliationRikkyo University-
dc.contributor.affiliationUniversity of Tokyo-
dc.contributor.affiliationJapan Aerospace Exploration Agency-
dc.contributor.affiliationChiba Institute of Technology-
dc.contributor.affiliationUniversity of Aizu-
dc.contributor.affiliationUniversity of Aizu-
dc.contributor.affiliationUniversity of Aizu-
dc.contributor.affiliationNational Institute for Advanced Industrial Science and Technology, Japan-
dc.contributor.affiliationNational Institute for Advanced Industrial Science and Technology, Japan-
dc.contributor.affiliationHokkaido University-
dc.contributor.affiliationJapan Aerospace Exploration Agency-
dc.contributor.affiliationBiological and Environmental Sciences-
dc.identifier.isi000404631800015-
Appears in Collections:Biological and Environmental Sciences Journal Articles

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