English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Geophysical observations of Phobos transits by InSight

Stähler, S. C., Widmer-Schnidrig, R., Scholz, J.-R., van Driel, M., Mittelholz, A. M., Hurst, K., et al. (submitted). Geophysical observations of Phobos transits by InSight.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0007-2089-A Version Permalink: http://hdl.handle.net/21.11116/0000-0007-208A-9
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Stähler, Simon C., Author
Widmer-Schnidrig, Rudolf, Author
Scholz, John-Robert1, Author              
van Driel, Martin, Author
Mittelholz, Anna Magdalena, Author
Hurst, Kenneth, Author
Johnson, Catherine L., Author
Lemmon, Mark T, Author
Lorenz, Ralph D., Author
Lognonné, Philippe Henri, Author
Mueller, Nils T, Author
Pou, Laurent, Author
Spiga, Aymeric, Author
Banfield, Donald, Author
Ceylan, Savas, Author
Charalambous, Constantinos, Author
Giardini, Domenico, Author
Nimmo, Francis, Author
Panning, Mark Paul, Author
Zürn, Walter, Author
Banerdt, William Bruce, Author more..
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

Content

show
hide
Free keywords: -
 Abstract: Since landing on Mars, the NASA InSight lander has witnessed 8 Phobos and one Deimos transit. All transits could be observed by a drop in the solar array current and the surface temperature, but more surprisingly, for several ones, a clear signature was recorded with the seismic sensors and the magnetometer. We present a preliminary interpretation of the seismometer data as temperature induced local deformation of the ground, supported by terrestrial analog experiments and finite-element modelling. The magnetic signature is most likely induced by changing currents from the solar arrays. While the observations are not fully understood yet, the recording of transit-related phenomena with high sampling rate will allow more precise measurements of the transit times, thus providing additional constraints for the orbital parameters of Phobos. The response of the seismometer can potentially also be used to constrain the thermo-elastic properties of the shallow regolith at the landing site.

Details

show
hide
Language(s): eng - English
 Dates: 2020
 Publication Status: Submitted
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/essoar.10503257.1
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Geophysical Research Letters
  Abbreviation : GRL
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, D.C. : American Geophysical Union / Wiley
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 0094-8276
CoNE: https://pure.mpg.de/cone/journals/resource/954925465217