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dc.contributor.authorFernando, B.
dc.contributor.authorWójcicka, N.
dc.contributor.authorFroment, M.
dc.contributor.authorMaguire, R.
dc.contributor.authorStähler, S.C.
dc.contributor.authorRolland, L.
dc.contributor.authorCollins, G.S.
dc.contributor.authorKaratekin, O.
dc.contributor.authorLarmat, C.
dc.contributor.authorSansom, Ellie
dc.contributor.authorTeanby, N.A.
dc.contributor.authorSpiga, A.
dc.contributor.authorKarakostas, F.
dc.contributor.authorLeng, K.
dc.contributor.authorNissen-Meyer, T.
dc.contributor.authorKawamura, T.
dc.contributor.authorGiardini, D.
dc.contributor.authorLognonné, P.
dc.contributor.authorBanerdt, B.
dc.contributor.authorDaubar, I.J.
dc.date.accessioned2023-01-10T07:39:52Z
dc.date.available2023-01-10T07:39:52Z
dc.date.issued2021
dc.identifier.citationFernando, B. and Wójcicka, N. and Froment, M. and Maguire, R. and Stähler, S.C. and Rolland, L. and Collins, G.S. et al. 2021. Listening for the Landing: Seismic Detections of Perseverance's Arrival at Mars With InSight. Earth and Space Science. 8 (4): ARTN e2020EA001585.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/90005
dc.identifier.doi10.1029/2020EA001585
dc.description.abstract

The entry, descent, and landing (EDL) sequence of NASA's Mars 2020 Perseverance Rover will act as a seismic source of known temporal and spatial localization. We evaluate whether the signals produced by this event will be detectable by the InSight lander (3,452 km away), comparing expected signal amplitudes to noise levels at the instrument. Modeling is undertaken to predict the propagation of the acoustic signal (purely in the atmosphere), the seismoacoustic signal (atmosphere-to-ground coupled), and the elastodynamic seismic signal (in the ground only). Our results suggest that the acoustic and seismoacoustic signals, produced by the atmospheric shock wave from the EDL, are unlikely to be detectable due to the pattern of winds in the martian atmosphere and the weak air-to-ground coupling, respectively. However, the elastodynamic seismic signal produced by the impact of the spacecraft's cruise balance masses on the surface may be detected by InSight. The upper and lower bounds on predicted ground velocity at InSight are 2.0 × 10−14 and 1.3 × 10−10 m s−1. The upper value is above the noise floor at the time of landing 40% of the time on average. The large range of possible values reflects uncertainties in the current understanding of impact-generated seismic waves and their subsequent propagation and attenuation through Mars. Uncertainty in the detectability also stems from the indeterminate instrument noise level at the time of this future event. A positive detection would be of enormous value in constraining the seismic properties of Mars, and in improving our understanding of impact-generated seismic waves.

dc.languageEnglish
dc.publisherAMER GEOPHYSICAL UNION
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/DP170102529
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectAstronomy & Astrophysics
dc.subjectGeosciences, Multidisciplinary
dc.subjectGeology
dc.subjectimpacts
dc.subjectInSight
dc.subjectMars
dc.subjectseismoacoustics
dc.subjectseismology
dc.subjectCOUPLED RAYLEIGH-WAVES
dc.subjectVELOCITY METEOR FALL
dc.subjectSEPTEMBER 15
dc.subjectIMPACTS
dc.subjectEARTH
dc.subjectATMOSPHERE
dc.subjectSCIENCE
dc.subjectSEISMOGRAMS
dc.subjectRECOVERY
dc.subjectMISSION
dc.titleListening for the Landing: Seismic Detections of Perseverance's Arrival at Mars With InSight
dc.typeJournal Article
dcterms.source.volume8
dcterms.source.number4
dcterms.source.titleEarth and Space Science
dc.date.updated2023-01-10T07:39:52Z
curtin.departmentSchool of Earth and Planetary Sciences (EPS)
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidSansom, Ellie [0000-0003-2702-673X]
curtin.identifier.article-numberARTN e2020EA001585
dcterms.source.eissn2333-5084
curtin.contributor.scopusauthoridSansom, Ellie [56460192900]


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