On-Deck Seismology: Lessons from Insight for Future Planetary Seismology
Session: InSight Seismology on Mars: Results From the First (Earth) Year of Data and Prospects for the Future [Poster]
Type: Poster
Date: 4/28/2020
Time: 08:00 AM
Room: Ballroom
Description:
Before deploying to the surface of Mars, the short-period (SP) seismometer of the InSight mission operated on deck for a total of 48 hours. This dataset can be used to understand how deck-mounted seismometers can be used in future landed missions to Mars, Europa and other planetary bodies. While operating on deck, the SP seismometer showed signals comparable to the Viking-2 seismometer near 3 Hz where the sensitivity of the Viking instrument peaked. Wind sensitivity showed similar patterns to the Viking instrument, although amplitudes on InSight were ~80% larger for a given wind velocity. However, during the low wind evening hours the instrument noise levels at frequencies between 0.1 and 1 Hz were comparable to quiet stations on Earth, although deployment to the surface below the Wind and Thermal Shield lowered installation noise by roughly 40 dB in acceleration power. With the observed noise levels and estimated seismicity rates for Mars, detection probability for quakes for a deck-mounted instrument are low enough that up to years of on-deck recordings may be necessary to observe an event. Because the noise is dominated by wind acting on the lander, though, deck-mounted seismometers may be more practical for deployment on airless bodies, and it is important to evaluate the seismicity of the target body and the specific design of the lander. Detection probabilities for operation on Europa reach over 99% for some proposed seismicity models for a similar duration of operation if noise levels are comparable to low-wind time periods on Mars.
Presenting Author: Mark P. Panning
Authors
Mark P Panning mark.p.panning@jpl.nasa.gov Jet Propulsion Laboratory, Caltech, Pasadena, California, United States Presenting Author
Corresponding Author
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William T Pike w.t.pike@imperial.ac.uk Imperial College London, London, , United Kingdom |
Philippe Lognonné lognonne@ipgp.fr Institut de Physique du Globe de Paris, Paris, , France |
William B Banerdt william.b.banerdt@jpl.nasa.gov Jet Propulsion Laboratory, Caltech, Pasadena, California, United States |
Naomi Murdoch naomi.murdoch@isae.fr ISAE-SUPAERO, Toulouse, , France |
Don Banfield banfield@astro.cornell.edu Cornell University, Ithaca, New York, United States |
Constantinos Charalambous constantinos.charalambous05@imperial.ac.uk Imperial Collega, London, , United Kingdom |
Sharon Kedar sharon.kedar@jpl.nasa.gov Jet Propulsion Laboratory, Caltech, Pasadena, California, United States |
Ralph D Lorenz ralph.lorenz@jhuapl.edu Johns Hopkins University, Laurel, Maryland, United States |
Angela G Marusiak marusiak@umd.edu University of Marylan, College Park, Maryland, United States |
John B McClean j.mcclean15@imperial.ac.uk Imperial Collega, London, , United Kingdom |
Ceri Nunn ceri.nunn@jpl.nasa.gov Jet Propulsion Laboratory, Caltech, Pasadena, California, United States |
Simon Stähler simon.staehler@erdw.ethz.ch ETH, Zürich, , Switzerland |
Alexander Stott alexander.stott10@imperial.ac.uk Imperial College London, London, , United Kingdom |
Tristram Warren tristram.warren@physics.ox.ac.uk Oxford University, Oxford, , United Kingdom |
On-Deck Seismology: Lessons from Insight for Future Planetary Seismology
Category
Insight Seismology on Mars: Results From the First (Earth) Year of Data and Prospects for the Future