InSight mission |
InSight mission |
Jan 7 2012, 08:29 PM
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#1
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
the GEMS Discovery finalist has been renamed InSight and now has its own website: http://insight.jpl.nasa.gov/
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Sep 14 2012, 04:34 PM
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#2
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Newbie Group: Members Posts: 4 Joined: 24-August 12 Member No.: 6611 |
Hello – two layperson questions about InSight’s seismometer:
One, will the instrument be able to collect data at night? Or, will the craft’s power budget rule that out? Two, can someone offer a sense of how sensitive will the seismometer be? How small a Marsquake could it measure (could that measurement be expressed in the Richer scale?)? Thanks! |
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Sep 14 2012, 07:54 PM
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#3
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
how sensitive will the seismometer be? This depends quite a bit on Mars itself, both the planet overall, the regolith where the seismometer is emplaced, and how close to the landing site any events happen to be. The seismometer stories from ALSEP are interesting as a possible comparison. Here, it's written up in quite an accessible form: http://www.honeysucklecreek.net/msfn_missi...P/hl_alsep.html The performance of a seismometer is multidimensional: One measures the frequency range, dynamic range, and sensitivity. Here's some information about InSight's seismometer: http://www.lpi.usra.edu/meetings/lpsc2012/pdf/1983.pdf An interesting point there is that they hope to detect impact events with the seismometer, then use orbiters to subsequently identify the precise impact location. That's a very powerful combination if that works. |
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