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Characterization of the MASCOT landing area by Hayabusa2

Schröder, Stefan and Sakatani, Naoya and Honda, Rie and Tatsumi, Eri and Yokota, Yasuhiro and Domingue, D. L. and Cho, Yuichiro and Kameda, Shingo and Kitazato, Kohei and Kouyama, Toru and Matsuoka, Moe and Miura, Akira and Morota, Tomokatsu and Okada, Tatsuaki and Sawada, Hirotaka and Senshu, Hiroki and Shimaki, Yuri and Sugita, Seiji and Tanaka, Satoshi and Yabuta, Hikaru and Yamada, Manabu and Grott, Matthias and Hamm, Maximilian and Ho, Tra-Mi and Jaumann, Ralf and Mottola, Stefano and Otto, Katharina A. and Schmitz, Nicole and Scholten, Frank (2022) Characterization of the MASCOT landing area by Hayabusa2. Astronomy and Astrophysics, 666, A164. EDP Sciences. doi: 10.1051/0004-6361/202244059. ISSN 0004-6361.

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Official URL: https://www.aanda.org/articles/aa/full_html/2022/10/aa44059-22/aa44059-22.html

Abstract

Context. After landing on C-type asteroid Ryugu, MASCOT imaged brightly colored, submillimeter-sized inclusions in a small rock. Hayabusa2 successfully returned a sample of small particles from the surface of Ryugu, but none of these appear to harbor such inclusions. The samples are considered representative of Ryugu. Aims. To understand the apparent discrepancy between MASCOT observations and Ryugu samples, we assess whether the MASCOT landing site, and the rock by implication, is perhaps atypical for Ryugu. Methods. We analyzed observations of the MASCOT landing area acquired by three instruments on board Hayabusa2: a camera (ONC), a near-infrared spectrometer (NIRS3), and a thermal infrared imager. We compared the landing area properties thus retrieved with those of the average Ryugu surface. Results. We selected several areas and landforms in the landing area for analysis: a small crater, a collection of smooth rocks, and the landing site itself. The crater is relatively blue and the rocks are relatively red. The spectral and thermophysical properties of the landing site are very close to those of the average Ryugu surface. The spectral properties of the MASCOT rock are probably close to average, but its thermal inertia may be somewhat higher. Conclusions. The MASCOT rock can also be considered representative of Ryugu. Some of the submillimeter-sized particles in the returned samples stand out because of their atypical spectral properties. Such particles may be present as inclusions in the MASCOT rock.

Item URL in elib:https://elib.dlr.de/190082/
Document Type:Article
Title:Characterization of the MASCOT landing area by Hayabusa2
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schröder, StefanLuleå University of Technology, 98128 Kiruna, Swedenhttps://orcid.org/0000-0003-0323-8324UNSPECIFIED
Sakatani, NaoyaInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, JapanUNSPECIFIEDUNSPECIFIED
Honda, RieKochi University, Kochi 780-8520, JapanUNSPECIFIEDUNSPECIFIED
Tatsumi, EriDep. of Earth and Planetary Science, univ. of TokyoUNSPECIFIEDUNSPECIFIED
Yokota, Yasuhiroisas/jaxa japanUNSPECIFIEDUNSPECIFIED
Domingue, D. L.Planetary Science Institute, Tucson, AZ 85719, USAUNSPECIFIEDUNSPECIFIED
Cho, YuichiroThe University of Tokyo, Department of Earth and Planetary ScienceUNSPECIFIEDUNSPECIFIED
Kameda, ShingoDep. of Physics, Rikkyo University, TokyoUNSPECIFIEDUNSPECIFIED
Kitazato, KoheiCenter for Advanced Information Science and Technology, University of Aizu, Aizu-Wakamatsu, JapanUNSPECIFIEDUNSPECIFIED
Kouyama, ToruNational Institute for Advanced Industrial Science and Technology, Tokyo, JapanUNSPECIFIEDUNSPECIFIED
Matsuoka, MoeInstitute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency, Sagamihara, JapanUNSPECIFIEDUNSPECIFIED
Miura, Akiraisas/jaxa japanUNSPECIFIEDUNSPECIFIED
Morota, Tomokatsuisas/jaxa japanUNSPECIFIEDUNSPECIFIED
Okada, TatsuakiISAS Institute of Space and Astronautical Science, JapanUNSPECIFIEDUNSPECIFIED
Sawada, Hirotakaisas/jaxa japanUNSPECIFIEDUNSPECIFIED
Senshu, HirokiPlanetary Exploration Research Center, Chiba Institute of Technology, Narashino, JapanUNSPECIFIEDUNSPECIFIED
Shimaki, Yuriplanetary exploration research center, chiba institute of technology, narashino, japanUNSPECIFIEDUNSPECIFIED
Sugita, SeijiUniversity of Tokyo, Tokyo, JapanUNSPECIFIEDUNSPECIFIED
Tanaka, SatoshiInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, JapanUNSPECIFIEDUNSPECIFIED
Yabuta, HikaruHiroshima University, JapanUNSPECIFIEDUNSPECIFIED
Yamada, ManabuPERC, Narashino, JapanUNSPECIFIEDUNSPECIFIED
Grott, MatthiasUNSPECIFIEDhttps://orcid.org/0000-0002-8613-7096UNSPECIFIED
Hamm, MaximilianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ho, Tra-MiUNSPECIFIEDhttps://orcid.org/0000-0003-3378-3227148008818
Jaumann, RalfDepartment of Earth Sciences, Institute of Geosciences, Free University, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Mottola, StefanoUNSPECIFIEDhttps://orcid.org/0000-0002-0457-3872UNSPECIFIED
Otto, Katharina A.UNSPECIFIEDhttps://orcid.org/0000-0002-0675-1177UNSPECIFIED
Schmitz, NicoleUNSPECIFIEDhttps://orcid.org/0000-0001-6481-6189UNSPECIFIED
Scholten, FrankUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:21 October 2022
Journal or Publication Title:Astronomy and Astrophysics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:666
DOI:10.1051/0004-6361/202244059
Page Range:A164
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:minor planets, asteroids: individual: Ryugu – methods: data analysis
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project MASCOT - Science
Location: Berlin-Adlershof , Bremen
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Institute of Planetary Research > Planetary Sensor Systems
Institute of Space Systems > Systems Engineering and Project Office
Institute of Planetary Research > Planetary Geodesy
Deposited By: Otto, Dr. Katharina A.
Deposited On:18 Nov 2022 11:10
Last Modified:04 Dec 2023 09:50

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