The Noise Model of the SEIS Seismometer of the InSight Mission to Mars |
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| Authors: | David Mimoun Naomi Murdoch Philippe Lognonné Kenneth Hurst William T Pike Jane Hurley Tanguy Nébut William B Banerdt SEIS Team |
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| Institution: | 1.DEOS/SSPA,Institut Supérieur de l’Aéronautique et de l’Espace, Supaero, Université de Toulouse,Toulouse Cedex,France;2.Institut de Physique du Globe de Paris, Sorbonne Paris Cité,Université Paris Diderot,Paris,France;3.Jet Propulsion Laboratory,California Institute of Technology,Pasadena,USA;4.Department of Electrical and Electronic Engineering,Imperial College London,London,UK;5.Rutherford Appleton Laboratory,Science and Technology Facilities Council,Didcot,UK;6.http://seis-insight.eu/teamlist |
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| Abstract: | The SEIS (Seismic Experiment for Interior Structures) instrument on board 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. The InSight noise model is a key tool for the InSight mission and SEIS instrument requirement setup. It will also be used for future operation planning. This paper presents the analyses made to build a model of the Martian seismic noise as measured by the SEIS seismometer, around the seismic bandwidth of the instrument (from 0.01 Hz to 1 Hz). It includes the instrument self-noise, but also the environment parameters that impact the measurements. We present the general approach for the model determination, the environment assumptions, and we analyze the major and minor contributors to the noise model. |
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