학술논문

The In Situ Evaluation of the SEIS Noise Model.
Document Type
Article
Source
Space Science Reviews. Apr2024, Vol. 220 Issue 3, p1-36. 36p.
Subject
*MAGNETIC noise
*MICROSEISMS
*NOISE
*MARTIAN surface
*MAGNETIC fields
*SEISMOMETERS
Language
ISSN
0038-6308
Abstract
Mimoun et al. (Space Sci Rev 211(1–4):383–428, 2017) developed a pre-landing noise model of the Martian seismometer package SEIS onboard InSight that analysed all the external and internal noise sources. We updated the environmental and instrumental parameters of the model as well as the ground properties with InSight mission data. We compared the output of the in situ noise model to the actual noise measured during the full mission for each individual noise source as well as for the full noise model. We evaluate in detail the efficiency of the model to fit the measured data and discuss the transient noise and other sources that were not included in the model. The main noise sources in the seismic bandwidth are the pressure noise and the lander noise, which is increased from the pre-landing model and overestimated when compared to the data; the magnetic field noise was overestimated in the pre-landing model and is now found to be negligible. The conclusions and models from this study could benefit future space missions. [ABSTRACT FROM AUTHOR]