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The MMX rover: performing in situ surface investigations on Phobos

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Title: The MMX rover: performing in situ surface investigations on Phobos
Authors: Michel, Patrick Browse this author
Ulamec, Stephan Browse this author
Boettger, Ute Browse this author
Grott, Matthias Browse this author
Murdoch, Naomi Browse this author
Vernazza, Pierre Browse this author
Sunday, Cecily Browse this author
Zhang, Yun Browse this author
Valette, Rudy Browse this author
Castellani, Romain Browse this author
Biele, Jens Browse this author
Tardivel, Simon Browse this author
Groussin, Olivier Browse this author
Jorda, Laurent Browse this author
Knollenberg, Joerg Browse this author
Grundmann, Jan Thimo Browse this author
Arrat, Denis Browse this author
Pont, Gabriel Browse this author
Mary, Stephane Browse this author
Grebenstein, Markus Browse this author
Miyamoto, Hirdy Browse this author
Nakamura, Tomoki Browse this author
Wada, Koji Browse this author
Yoshikawa, Kent Browse this author
Kuramoto, Kiyoshi Browse this author →KAKEN DB
Keywords: Camera
Numerical modelling
Raman spectrometer
Regolith dynamics
Thermal inertia
Issue Date: 2022
Publisher: Springer
Journal Title: Earth planets and space
Volume: 74
Issue: 1
Start Page: 2
Publisher DOI: 10.1186/s40623-021-01464-7
Abstract: The Japanese MMX sample return mission to Phobos by JAXA will carry a rover developed by CNES and DLR that will be deployed on Phobos to perform in situ analysis of the Martian moon's surface properties. Past images of the surface of Phobos show that it is covered by a layer of regolith. However, the mechanical and compositional properties of this regolith are poorly constrained. In particular, from current remote images, very little is known regarding the particle sizes, their chemical composition, the packing density of the regolith as well as other parameters such as friction and cohesion that influence surface dynamics. Understanding the properties and dynamics of the regolith in the low-gravity environment of Phobos is important to trace back its history and surface evolution. Moreover, this information is also important to support the interpretation of data obtained by instruments onboard the main MMX spacecraft, and to minimize the risks involved in the spacecraft sampling operations. The instruments onboard the Rover are a Raman spectrometer (RAX), an infrared radiometer (miniRad), two forward-looking cameras for navigation and science purposes (NavCams), and two cameras observing the interactions of regolith and the rover wheels (WheelCams). The Rover will be deployed before the MMX spacecraft samples Phobos' surface and will be the first rover to drive on the surface of a Martian moon and in a very low gravity environment.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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