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

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 seismi...

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Published in:Earth, planets, and space planets, and space, 2020-12, Vol.72 (1), p.1-18, Article 191
Main Authors: Bernauer, Felix, Garcia, Raphael F., Murdoch, Naomi, Dehant, Veronique, Sollberger, David, Schmelzbach, Cedric, Stähler, Simon, Wassermann, Joachim, Igel, Heiner, Cadu, Alexandre, Mimoun, David, Ritter, Birgit, Filice, Valerio, Karatekin, Özgür, Ferraioli, Luigi, Robertsson, Johan O. A., Giardini, Domenico, Lecamp, Guillaume, Guattari, Frederic, Bonnefois, Jean-Jacques, de Raucourt, Sebastien
Format: Article
Language:English
Subjects:
6DoF sensors
7. Planetary science
Asteroids
Astronomical research
Degrees of freedom (Mechanics)
Design and construction
Earth and Environmental Science
Earth Sciences
Engineering Sciences
Europa
Geology
Geophysics/Geodesy
Ground motion
Librations
Mars satellites
Moon
Noise levels
Phobos
Planetary exploration
Planetary interiors
Planetary seismology
Planets
Sensors
Signal and Image processing
Tides
Touchdown
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Summary: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.
ISSN:1880-5981
1343-8832
1880-5981
DOI:10.1186/s40623-020-01333-9