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| 40m Log |
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 Wed Feb 24 16:11:15 2010, Jenne, Update, PEM, Seismic witnesses near MC1 tank moved
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 Sun Mar 7 23:05:39 2010, rana, Update, PEM, Seismic witnesses near MC1 tank moved 
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Mon Mar 8 18:15:27 2010, rana, Update, PEM, Styrofoam Cooler on the Seismos
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Tue Mar 9 12:06:53 2010, rana, Jenne, Update, PEM, Styrofoam Cooler on the Seismos
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Wed Mar 10 15:02:58 2010, rana, Update, PEM, Styrofoam Cooler on the Seismos
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Sat Mar 13 21:30:22 2010, rana, Update, PEM, Styrofoam Cooler on the Seismos
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Mon Mar 15 16:39:36 2010, steve, Update, PEM, Guralp2 centered
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Thu Mar 18 08:49:51 2010, steve, Update, PEM, Guralp2 centered again ?
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Fri Mar 19 18:00:14 2010, jenne, Update, PEM, Guralp2 centered again
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Fri Mar 19 21:15:33 2010, rana, Update, PEM, Guralp2 centered again
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Fri Mar 19 23:03:41 2010, rana, Update, PEM, Guralp2 centered again
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Sun Mar 21 19:25:29 2010, rana, Update, PEM, Guralp2 centered again
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Thu Mar 25 09:07:08 2010, steve, Update, PEM, Guralp2 x problem is back
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Wed Mar 31 16:31:44 2010, steve, Update, PEM, Guralp interface box turned off
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Mon Apr 5 01:02:07 2010, rana, Update, PEM, Guralp interface box turned off
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Message ID: 2743
Entry time: Wed Mar 31 16:31:44 2010
In reply to: 2713
Reply to this: 2764
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| Author: |
steve |
| Type: |
Update |
| Category: |
PEM |
| Subject: |
Guralp interface box turned off |
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| Quote: |
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| Quote: |
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I went and double-checked and aligned the styrofoam cooler at ~5:00 UTC. It was fine, but we really need a better huddling box. Where's that granite anyway?
Here's the new Huddle Test output. This time I show the X-axis since there's some coherence now below 0.1 Hz.
You'll also notice that the Wiener filter is now beating the FD subtraction. This happened when I increased the # of taps to 8000. Looks like the noise keeps getting lower as I increase the number of taps, but this is really a kind of cheat if you think about it carefully.
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The same thing happening again. The intermittent offset upstream of the seismometer that never got fixed.
The granite plate and ball bearings are in. I will place seismometers on it.
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