Skip to Main content Skip to Navigation
Journal articles

Evaluating the Wind-Induced Mechanical Noise on the InSight Seismometers

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.
Document type :
Journal articles
Complete list of metadata

Cited literature [32 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01445661
Contributor : Open Archive Toulouse Archive Ouverte (oatao) Connect in order to contact the contributor
Submitted on : Wednesday, January 25, 2017 - 11:08:02 AM
Last modification on : Tuesday, October 19, 2021 - 11:10:38 PM
Long-term archiving on: : Wednesday, April 26, 2017 - 1:42:31 PM

File

Murdoch_17287.pdf
Files produced by the author(s)

Identifiers

Citation

Naomi Murdoch, David Mimoun, Raphael Garcia, William Rapin, Taichi Kawamura, et al.. Evaluating the Wind-Induced Mechanical Noise on the InSight Seismometers. Space Science Reviews, Springer Verlag, 2016, pp. 1-27. ⟨10.1007/s11214-016-0311-y⟩. ⟨hal-01445661⟩

Share

Metrics

Les métriques sont temporairement indisponibles