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MASCOT RADIOMETER DATA 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 DATA REVEALS SIGNS OF STRONG AQUEOUS ALTERATION OF (162173) RYUGU’S MATERIALS. Lunar and Planetary Science Conference, 7.-11. März 2022, 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 DATA REVEALS SIGNS OF STRONG AQUEOUS ALTERATION OF (162173) RYUGU’S MATERIALS
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hamm, Maximilianmaximilian.hamm (at) dlr.deUNSPECIFIED
Grott, MatthiasMatthias.Grott (at) dlr.deUNSPECIFIED
Senshu, H.Chiba Institute of Technology, JapanUNSPECIFIED
Knollenberg, JörgJoerg.Knollenberg (at) dlr.deUNSPECIFIED
Wiljes, J. deInstitute of Mathematics, University of Potsdam, Potsdam, GermanyUNSPECIFIED
Hamilton, Victoria E.Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, CO 80302, USAUNSPECIFIED
Scholten, FrankFrank.Scholten (at) dlr.deUNSPECIFIED
Matz, K-Dklaus-dieter.matz (at) dlr.deUNSPECIFIED
Bates, H.C.Department of Earth Science, Natural History Museum, London, UKUNSPECIFIED
Maturilli, AlessandroAlessandro.Maturilli (at) dlr.dehttps://orcid.org/0000-0003-4613-9799
Shimaki, Y.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS / JAXA) 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara 252-5210, JapanUNSPECIFIED
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 , JapanUNSPECIFIED
Neumann, WladimirWladimir.Neumann (at) dlr.deUNSPECIFIED
Okada, T.JAXA-ISAS, Sagamihara, JapanUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Elgner, StephanStephan.Elgner (at) dlr.deUNSPECIFIED
Helbert, JörnJoern.Helbert (at) dlr.dehttps://orcid.org/0000-0001-5346-9505
Kührt, EkkehardEkkehard.Kuehrt (at) dlr.deUNSPECIFIED
Ho, Tra-MiTra-Mi.Ho (at) dlr.deUNSPECIFIED
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 , JapanUNSPECIFIED
Jaumann, Rralf.jaumann (at) dlr.deUNSPECIFIED
Sugita, S.University of Tokyo, Tokyo, JapanUNSPECIFIED
Date:March 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
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 Dates:7.-11. März 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:21 Mar 2022 11:59

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