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Evaluating the Wind-Induced Mechanical Noise on the InSight Seismometers

Murdoch, Naomi and Mimoun, David and Garcia, Raphaël F. and Rapin, William and Kawamura, Taichi and Lognonné, Philippe and Banfield, Don and Banerdt, William Bruce Evaluating the Wind-Induced Mechanical Noise on the InSight Seismometers. (2017) Space Science Reviews. 1-27. ISSN 0038-6308

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Official URL: http://dx.doi.org/10.1007/s11214-016-0311-y

Abstract

The SEIS (Seismic Experiment for Interior Structures) instrument onboard the InSight mission to Mars is the critical instrument for determining the interior structure of Mars, the current level of tectonic activity and the meteorite flux. Meeting the performance requirements of the SEIS instrument is vital to successfully achieve these mission objectives. Here we analyse in-situ wind measurements from previous Mars space missions to understand the wind environment that we are likely to encounter on Mars, and then we use an elastic ground deformation model to evaluate the mechanical noise contributions on the SEIS instrument due to the interaction between the Martian winds and the InSight lander. Lander mechanical noise maps that will be used to select the best deployment site for SEIS once the InSight lander arrives on Mars are also presented. We find the lander mechanical noise may be a detectable signal on the InSight seismometers. However, for the baseline SEIS deployment position, the noise is expected to be below the total noise requirement > 97 % of the time and is, therefore, not expected to endanger the InSight mission objectives.

Item Type:Article
HAL Id:hal-01445661
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Cornell University (USA)
Other partners > Institut de Physique du Globe de Paris - IPGP (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > National Aeronautics and Space Administration - NASA (USA)
Other partners > Université de Paris Diderot - Paris 7 (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Université de La Réunion (FRANCE)
Other partners > California Institute of Technology - Caltech (USA)
Other partners > Institut national des sciences de l'Univers - INSU (FRANCE)
Laboratory name:
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Deposited By: Raphael Garcia
Deposited On:25 Jan 2017 10:07

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