In Situ Regolith Seismic Velocity Measurement at the InSight Landing Site on Mars.

ABSTRACT: Interior exploration using Seismic Investigations, Geodesy and Heat Transport's (InSight) seismometer package Seismic Experiment for Interior Structure (SEIS) was placed on the surface of Mars at about 1.2 m distance from the thermal properties instrument Heat flow and Physical Properties Package (HP³) that includes a self-hammering probe. Recording the hammering noise with SEIS provided a unique opportunity to estimate the seismic wave velocities of the shallow regolith at the landing site. However, the value of studying the seismic signals of the hammering was only realized after critical hardware decisions were already taken. Furthermore, the design and nominal operation of both SEIS and HP³ are nonideal for such high-resolution seismic measurements. Therefore, a s

SUBMITTER: Brinkman N 

PROVIDER: S-EPMC9787532 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature