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 Fri Dec 6 17:49:46 2019, rana, Summary, PEM, Jump test of seismometers: EX needs recentering 
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 Sun Dec 8 20:15:41 2019, rana, Summary, PEM, Jump test of seismometers: EX needs recentering
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Mon Dec 9 13:08:24 2019, Yehonathan, Summary, PEM, Jump test of seismometers: EX needs recentering
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Message ID: 15082
Entry time: Fri Dec 6 17:49:46 2019
Reply to this: 15083
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| Author: |
rana |
| Type: |
Summary |
| Category: |
PEM |
| Subject: |
Jump test of seismometers: EX needs recentering |
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Yehonathan, please center the EX seismometer.
The attached PDF shows the seismometer signals (I'm assuming that they're already calibrated into microns/s) during the lab tour for the art students on 11/1. The big spike which I've zoomed in on shows the time when we were in the control room and we all jumped up at the same time. There were approximately 15 students each with a mass of ~50-70 kg. I estimate that out landing times were all sync'd to within ~0.1 s. |
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