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Thermal inertia of asteroid Ryugu using dawn-side thermal images by TIR on Hayabusa2

Okada, T. and Fukuhara, Tetsuya and Tanaka, Satoshi and Taguchi, Makoto and Arai, Takehiko and Sakatani, Naoya and Shimaki, Yuri and Senshu, Hiroki and Demura, Hirohide and Ogawa, Yoshiko and Suko, Kentaro and Sekiguchi, Tomohiko and Kouyama, Toru and Helbert, Jörn and Müller, T. and Hagermann, Axel and Biele, Jens and Grott, Matthias and Hamm, Maximilian and Delbo, Marco (2019) Thermal inertia of asteroid Ryugu using dawn-side thermal images by TIR on Hayabusa2. EPSC-DPS Joint Meeting 2019, 15–20 September 2019, Geneva, Switzerland.

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Abstract

A thermal inertia map of the C-type Near-Earth asteroid 162173 Ryugu has been derived using the one-rotation global thermal image sets observed from the Home Position at 20 km altitude [1]. This time the thermal images of the night side areas of the surface just before sunrise were taken during observations from the dawn side. The coldest brightness temperature of the surface indicates another information on the thermal inertia of the surface. The thermal inertia is preliminary estimated at 250 [J m-2K-1s-0.5] or lower, which is consistent with other than those derived from the daytime observations [2].

Item URL in elib:https://elib.dlr.de/131758/
Document Type:Conference or Workshop Item (Speech)
Title:Thermal inertia of asteroid Ryugu using dawn-side thermal images by TIR on Hayabusa2
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Okada, T.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA) Sagamihara, JapanUNSPECIFIED
Fukuhara, TetsuyaRikkyo University, Tokyo, JapanUNSPECIFIED
Tanaka, SatoshiInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, JapanUNSPECIFIED
Taguchi, MakotoRikkyo University, Tokyo, JapanUNSPECIFIED
Arai, Takehikoinstitute of space and astronautical science, japan aerospace exploration agency, sagamihara, japanUNSPECIFIED
Sakatani, Naoyainstitute of space and astronautical science, japan aerospace exploration agency, sagamihara, japanUNSPECIFIED
Shimaki, Yuriplanetary exploration research center, chiba institute of technology, narashino, japanUNSPECIFIED
Senshu, Hirokiplanetary exploration research center, chiba institute of technology, narashino, japanUNSPECIFIED
Demura, Hirohidecenter for advanced information science and technology, university of aizu, aizu-wakamatsu, japanUNSPECIFIED
Ogawa, Yoshikocenter for advanced information science and technology, university of aizu, aizu-wakamatsu, japanUNSPECIFIED
Suko, Kentaroplanetary exploration research center, chiba institute of technology, narashino, japanUNSPECIFIED
Sekiguchi, Tomohikohokkaido university of education, asahikawa, japanUNSPECIFIED
Kouyama, Torunational institute for advanced industrial science and technology, tokyo, japanUNSPECIFIED
Helbert, JörnJoern.Helbert (at) dlr.dehttps://orcid.org/0000-0001-5346-9505
Müller, T.Max-Planck-Institut für Extreterrestrische Physik, GermanyUNSPECIFIED
Hagermann, AxelCentre for Earth, Planetary, Space and Astronomical Research (CEPSAR), Open University, Milton Keynes, UKUNSPECIFIED
Biele, JensJens.Biele (at) dlr.deUNSPECIFIED
Grott, MatthiasMatthias.Grott (at) dlr.deUNSPECIFIED
Hamm, Maximilianmaximilian.hamm (at) dlr.deUNSPECIFIED
Delbo, MarcoOsservatorio Astronomico di Torino, Pino Torinese, ItalienUNSPECIFIED
Date:2019
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:13
Page Range:p. 268
Series Name:EPSC Abstracts
Status:Published
Keywords:Thermal inertia, asteroid, Ryugu, thermal images, TIR, Hayabusa2
Event Title:EPSC-DPS Joint Meeting 2019
Event Location:Geneva, Switzerland
Event Type:international Conference
Event Dates:15–20 September 2019
Organizer:EPSC
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):Project MASCOT Science and operation
Location: Berlin-Adlershof , Köln-Porz
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Institute of Planetary Research > Planetary Physics
Space Operations and Astronaut Training > User center for space experiments (MUSC)
Deposited By: Amore, Dr. Mario
Deposited On:03 Dec 2019 14:29
Last Modified:03 Dec 2019 14:29

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