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Exploring planets and asteroids with 6DoF sensors: Utopia and realism

Bernauer, Felix and Garcia, Raphaël F. and Murdoch, Naomi and Dehant, Veronique and Sollberger, David and Schmelzbach, Cedric and Stähler, Simon and Wassermann, Joachim and Igel, Heiner and Cadu, Alexandre and Mimoun, David and Ritter, Birgit and Filice, Valerio and Karatekin, Özgür and Ferraioli, Luigi and Robertsson, Johan O. A. and Giardini, Domenico and Lecamp, Guillaume and Guattari, Frederic and Bonnefois, Jean-Jacques and de Raucourt, Sebastien Exploring planets and asteroids with 6DoF sensors: Utopia and realism. (2020) Earth, Planets and Space, 72 (1).

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Official URL: https://doi.org/10.1186/s40623-020-01333-9

Abstract

A 6 degrees-of-freedom (6DoF) sensor, measuring three components of translational acceleration and three components of rotation rate, provides the full history of motion it is exposed to. In Earth sciences 6DoF sensors have shown great potential in exploring the interior of our planet and its seismic sources. In space sciences, apart from navigation, 6DoF sensors are, up to now, only rarely used to answer scientific questions. As a first step of establishing 6DoF motion sensing deeper into space sciences, this article describes novel scientific approaches based on 6DoF motion sensing with substantial potential for constraining the interior structure of planetary objects and asteroids. Therefore we estimate 6DoF-signal levels that originate from lander–surface interactions during landing and touchdown, from a body’s rotational dynamics as well as from seismic ground motions. We discuss these signals for an exemplary set of target bodies including Dimorphos, Phobos, Europa, the Earth’s Moon and Mars and compare those to self-noise levels of state-of-the-art sensors.

Item Type:Article
HAL Id:hal-03179800
Audience (journal):International peer-reviewed journal
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Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
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Deposited On:24 Mar 2021 13:45

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