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The descent and bouncing path of the Hayabusa2 lander MASCOTat asteroid (162173) Ryugu

Scholten, Frank and Preusker, Frank and Elgner, Stephan and Matz, K-D and Jaumann, R and Biele, Jens and Hercik, D. and Auster, H-U. and Hamm, Maximilian and Grott, Matthias and Grimm, Christian and Ho, Tra-Mi and Koncz, Alexander and Schmitz, Nicole and Trauthan, Frank and Kameda, Shingo and Sugita, S. and Honda, R. and Morota, T. and Tatsumi, Eri and Cho, Y. and Yoshioka, K. and Sawada, H. and Yokota, Y. and Sakatani, N. and Hayakawa, M. and Matsuoka, M. and Yamada, M. and Kouyama, T. and Suzuki, H. and Honda, C. and Ogawa, Kazunori (2019) The descent and bouncing path of the Hayabusa2 lander MASCOTat asteroid (162173) Ryugu. Astronomy & Astrophysics, 632, L3. EDP Sciences. DOI: 10.1051/0004-6361/201936757 ISSN 0004-6361

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Official URL: https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/201936757

Abstract

Images from the Optical Navigation Camera system (ONC) onboard the Hayabusa2 spacecraft show the MASCOT lander during its descentto the surface of asteroid (162173) Ryugu. We used results from a previous stereo-photogrammetric analysis that provided precise ONC imageorientation data (camera position and pointing), ONC orthoimages, and an ONC-based 3D surface model to combine them with the visibilities of MASCOT itself and its shadow on-ground within the ONC images. We integrated additional information from instruments onboard MASCOT(MASMag, MARA, MASCam) and derived MASCOT's release position and modeled its free-fall descent path and its velocity over 350 s fromits release at ~41 m altitude above ground until its first contact with the surface of Ryugu. After first contact, MASCOT bounced over the surfaceof Ryugu for 663 s and came to rest at its first settlement point after four intermediate surface contacts. We again used ONC images that showMASCOT and partly its shadow and reconstructed the bouncing path and the respective velocities of MASCOT. The achieved accuracy for theentire descent and bouncing path is ~0.1 m (1 sigma).

Item URL in elib:https://elib.dlr.de/131280/
Document Type:Article
Title:The descent and bouncing path of the Hayabusa2 lander MASCOTat asteroid (162173) Ryugu
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Scholten, FrankFrank.Scholten (at) dlr.deUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Elgner, StephanStephan.Elgner (at) dlr.deUNSPECIFIED
Matz, K-Dklaus-dieter.matz (at) dlr.deUNSPECIFIED
Jaumann, Rralf.jaumann (at) dlr.deUNSPECIFIED
Biele, JensJens.Biele (at) dlr.deUNSPECIFIED
Hercik, D.Institut für Geophysik und extraterrestrische Physik, TU Braunschweig, GermanyUNSPECIFIED
Auster, H-U.TU Braunschweig, GermanyUNSPECIFIED
Hamm, Maximilianmaximilian.hamm (at) dlr.deUNSPECIFIED
Grott, MatthiasMatthias.Grott (at) dlr.deUNSPECIFIED
Grimm, ChristianChristian.Grimm (at) dlr.deUNSPECIFIED
Ho, Tra-MiTra-Mi.Ho (at) dlr.deUNSPECIFIED
Koncz, AlexanderAlexander.Koncz (at) dlr.deUNSPECIFIED
Schmitz, NicoleNicole.Schmitz (at) dlr.dehttps://orcid.org/0000-0001-6481-6189
Trauthan, FrankFrank.Trauthan (at) dlr.deUNSPECIFIED
Kameda, ShingoDep. of Physics, Rikkyo University, TokyoUNSPECIFIED
Sugita, S.University of Tokyo, Tokyo, JapanUNSPECIFIED
Honda, R.Kochi University, JapanUNSPECIFIED
Morota, T.University of Tokyo, Tokyo, JapanUNSPECIFIED
Tatsumi, EriDep. of Earth and Planetary Science, univ. of TokyoUNSPECIFIED
Cho, Y.University of Tokyo, JapanUNSPECIFIED
Yoshioka, K.University of Tokyo, JapanUNSPECIFIED
Sawada, H.ISAS, JAXA, JapanUNSPECIFIED
Yokota, Y.ISAS, JAXA, JapanUNSPECIFIED
Sakatani, N.ISAS, JAXA, JapanUNSPECIFIED
Hayakawa, M.ISAS, JAXA, JapanUNSPECIFIED
Matsuoka, M.ISAS, JAXA, JapanUNSPECIFIED
Yamada, M.Chiba Institute of Technology, JapanUNSPECIFIED
Kouyama, T.National Institute of Advanced Industrial Science and Technology, Tokyo, JapanUNSPECIFIED
Suzuki, H.Meiji University, JapanUNSPECIFIED
Honda, C.Univ Aizu, Res Ctr Adv Informat Sci & Technol, Aizu Wakamatsu, Fukushima, JapanUNSPECIFIED
Ogawa, KazunoriDep. of Planetology, Kobe University, Kobe - JapanUNSPECIFIED
Date:2019
Journal or Publication Title:Astronomy & Astrophysics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:632
DOI :10.1051/0004-6361/201936757
Page Range:L3
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:MASCOT, data analysis, image processing , asteroid, Ryugu
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 , Bremen , Köln-Porz
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Institute of Planetary Research > Planetary Geology
Space Operations and Astronaut Training > User center for space experiments (MUSC)
Institute of Planetary Research > Planetary Physics
Institute of Space Systems > Land and Exploration Technology
Institute of Space Systems > Systems Engineering and Project Office
Institute of Planetary Research > Planetary Sensor Systems
Deposited By: Scholten, Dipl.-Ing. Frank
Deposited On:28 Nov 2019 09:16
Last Modified:23 Mar 2020 14:28

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