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MASCOT radiometer reveals signs of strong aqueous alteration of (162173) Ryugu's materials

Hamm, Maximilian and Grott, Matthias and Senshu, H. and Knollenberg, Jörg and Wiljes, J. de and Hamilton, Victoria E. and Scholten, Frank and Matz, K-D and Bates, H.C. and Maturilli, Alessandro and Shimaki, Y. and Sakatani, N. and Neumann, Wladimir and Okada, T. and Preusker, Frank and Elgner, Stephan and Helbert, Jörn and Kührt, Ekkehard and Ho, Tra-Mi and Tanaka, S. and Jaumann, R. and Sugita, S. (2022) MASCOT radiometer reveals signs of strong aqueous alteration of (162173) Ryugu's materials. Lunar and Planetary Science Conference, 2022-03-07 - 2022-03-11, The Woodlands, Texas.

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Official URL: https://www.hou.usra.edu/meetings/lpsc2022/pdf/1400.pdf

Abstract

The Near-Earth Asteroid (162173) Ryugu has been investigated by the JAXA Hayabusa2 mission. Hayabusa2 successfully returned samples from two sites of Ryugu’s surface to Earth in December 2020. Part of this mission was the deployment of the MASCOT lander which studied Ryugu’s surface in detail. Ryugu is a rubble-pile asteroid covered in boulders and large pebbles. Observations in the visible and near-infrared wavelength range indicate that Ryugu is as dark as any measured meteorite samples and that the closest match is thermally metamorphosed carbonaceous chondrites. In the mid-infrared, the thermal infrared (TIR) instrument and the MASCOT Radiometer (MARA) revealed a high porosity of surface material of 40-50 % on average with individual boulders showing a porosity of up to 90%.

Item URL in elib:https://elib.dlr.de/148670/
Document Type:Conference or Workshop Item (Speech)
Title:MASCOT radiometer reveals signs of strong aqueous alteration of (162173) Ryugu's materials
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Hamm, MaximilianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grott, MatthiasUNSPECIFIEDhttps://orcid.org/0000-0002-8613-7096UNSPECIFIED
Senshu, H.Chiba Institute of Technology, JapanUNSPECIFIEDUNSPECIFIED
Knollenberg, JörgUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wiljes, J. deInstitute of Mathematics, University of Potsdam, Potsdam, GermanyUNSPECIFIEDUNSPECIFIED
Hamilton, Victoria E.Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, CO 80302, USAUNSPECIFIEDUNSPECIFIED
Scholten, FrankUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Matz, K-DUNSPECIFIEDhttps://orcid.org/0000-0002-4148-1926UNSPECIFIED
Bates, H.C.Department of Earth Science, Natural History Museum, London, UKUNSPECIFIEDUNSPECIFIED
Maturilli, AlessandroUNSPECIFIEDhttps://orcid.org/0000-0003-4613-9799UNSPECIFIED
Shimaki, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIEDUNSPECIFIED
Sakatani, N.Institute of Space and Astronautical Science , Japan Aerospace Exploration Agency (ISAS / JAXA) ( 3 - 1 - 1 Yoshinodai, Chuo - Ku, Sa gamihara 2 52 - 5210 , JapanUNSPECIFIEDUNSPECIFIED
Neumann, WladimirUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Okada, T.JAXA-ISAS, Sagamihara, JapanUNSPECIFIEDUNSPECIFIED
Preusker, FrankUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Elgner, StephanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Helbert, JörnUNSPECIFIEDhttps://orcid.org/0000-0001-5346-9505UNSPECIFIED
Kührt, EkkehardUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ho, Tra-MiUNSPECIFIEDhttps://orcid.org/0000-0003-3378-3227UNSPECIFIED
Tanaka, S.Institute of Space and Astronautical Science , Japan Aerospace Exploration Agency (ISAS / JAXA) ( 3 - 1 - 1 Yoshinodai, Chuo - Ku, Sa gamihara 2 52 - 5210 , JapanUNSPECIFIEDUNSPECIFIED
Jaumann, R.FU BerlinUNSPECIFIEDUNSPECIFIED
Sugita, S.University of Tokyo, Tokyo, JapanUNSPECIFIEDUNSPECIFIED
Date:March 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 1400
Series Name:LPI Contribution
Status:Published
Keywords:Hayabusa2 MASCOT MARA Radiometer Asteroid Ryugu Regolith
Event Title:Lunar and Planetary Science Conference
Event Location:The Woodlands, Texas
Event Type:international Conference
Event Start Date:7 March 2022
Event End Date:11 March 2022
Organizer:Lunar and Planetary Institute
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 Physics
Institute of Planetary Research > Planetary Sensor Systems
Institute of Planetary Research > Planetary Geology
Institute of Planetary Research > Planetary Laboratories
Institute of Planetary Research > Planetary Geodesy
Institute of Space Systems > Systems Engineering and Project Office
Institute of Optical Sensor Systems
Deposited By: Grott, Dr.rer.nat. Matthias
Deposited On:21 Mar 2022 11:59
Last Modified:24 Apr 2024 20:46

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