ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
7229
|
Sun Aug 19 01:41:27 2012 |
Masha | Update | PEM | Earthquake Classified | There was a 5.6 Earthquake that occurred
near Tofino, Canada about 30 minutes ago.
It showed up rather strongly on the BLRMS. |
|
7244
|
Tue Aug 21 15:26:04 2012 |
Steve | Update | PEM | temp sensor for vacuum | Temperature sensor for vacuum. How many
: 2 or 3 ? $350 each
Glass encapsulated thermistor |
|
7251
|
Wed Aug 22 18:58:12 2012 |
Jenne | Update | PEM | Weird BLRMS increase | It seems as though there is something funny
going on around ~1.5 Hz, starting a little
over an hour ago. |
10x |
7253
|
Thu Aug 23 00:18:54 2012 |
Jenne | Update | PEM | Weird BLRMS increase | While I was gone for dinner break, the BLRMS
went back to normal. Then, almost 2 hours
later, another peak appeared, this time closer |
|
7254
|
Thu Aug 23 10:08:13 2012 |
Steve | Update | PEM | seismometers? |
|
 |
7262
|
Thu Aug 23 21:53:18 2012 |
Yaakov | Update | PEM | Accelerometer location | The MC1 accelerometer cube (3 accelerometers
arranged in x,y,z) is under the PSL table,
as I found it at the beginning of the summer. |
|
7269
|
Fri Aug 24 11:46:59 2012 |
Masha | Update | PEM | New classification weights | I recently realized that I may have over-trained
my classification neural network and used
too many parameters, so that my weight vectors |
|
7281
|
Mon Aug 27 08:34:18 2012 |
Steve | Update | PEM | earthquakes | Shasky
day yesterday postpones venting. We had
about 11 shakes larger than mag 4.0 Mag5.5 |
  |
7373
|
Wed Sep 12 08:16:49 2012 |
Steve | Configuration | PEM | chamber must be sealed overnight! |
|
|
7392
|
Fri Sep 14 21:03:02 2012 |
Den | Update | PEM | BS and AS tables | I've measured seismic and acoustic noise
on BS and AS tables. It seems that horizontal
motion of BS table is ~1.5-2 times more then |
   |
7394
|
Sat Sep 15 18:46:50 2012 |
Den | Update | PEM | microphone location | I've suspended microphones around the lab
C1:PEM-MIC_1 - MC2
C1:PEM-MIC_2
- ETMX
C1:PEM-MIC_3 - PSL
C1:PEM-MIC_4 |
|
7395
|
Sat Sep 15 20:27:54 2012 |
Den | Update | PEM | BS and AS tables |
|
 |
7396
|
Mon Sep 17 07:57:58 2012 |
rana | Update | PEM | BS and AS tables for REFL change |
This was in response to my
suggestion to move the REFL beam path to |
|
7429
|
Sat Sep 22 01:03:30 2012 |
Den | Update | PEM | ETMY table | I've installed Guralp readout box back
and it turned out that it does not work with
voltage provided from the rack (+13.76 0 |
  |
7433
|
Mon Sep 24 17:03:39 2012 |
Jenne | Update | PEM | 1X1 rack power |
|
|
7459
|
Mon Oct 1 19:21:03 2012 |
rana | Configuration | PEM | changed PEM DQ channels | Changed the list of channels to be written
to frames from having the IN1 suffix to OUT.
Now we can load the calibration of the channel |
|
7468
|
Wed Oct 3 15:37:04 2012 |
Steve | Update | PEM | ants on the PSL table | We observed one or two ants climbing over
PMC optics without booties and safety glasses.
|
|
7470
|
Wed Oct 3 16:26:58 2012 |
Manasa | Update | PEM | ants on the PSL table | I spotted around 4 within 30 minutes working
at the PSL table even after the deathly spray |
|
7487
|
Fri Oct 5 00:29:34 2012 |
Den | Update | PEM | readout box power | Guralp readout box received +13.7 /0/ -15V
instead +15V because of the broken fuse.
Power provided by the source is normal. |
|
7488
|
Fri Oct 5 01:36:49 2012 |
Den | Configuration | PEM | changed PEM DQ channels |
|
|
7490
|
Fri Oct 5 11:11:00 2012 |
Den | Update | PEM | readout box power |
|
|
7539
|
Fri Oct 12 22:44:49 2012 |
Den | Update | PEM | ETMY table |
|
6x |
7540
|
Sun Oct 14 11:41:42 2012 |
Den | Update | PEM | ETMY table |
|
  |
7541
|
Sun Oct 14 16:44:20 2012 |
Den | Update | PEM | ETMX table | I've measured ETMX table motion compared
to ground motion using accelerometers. Data
and settings in the xml file are at the svn |
  |
7542
|
Sun Oct 14 17:26:03 2012 |
Den | Update | PEM | ETMX table |
|
|
7543
|
Sun Oct 14 20:51:20 2012 |
Den | Update | PEM | AA board |
|
 |
7546
|
Mon Oct 15 10:14:22 2012 |
Den | Update | PEM | AA board |
|
|
7562
|
Tue Oct 16 21:57:47 2012 |
Den | Update | PEM | accelerometers | All accelerometers are now at the table
behind 1X4, cables are near readout box. |
|
7567
|
Wed Oct 17 09:01:37 2012 |
Steve | Update | PEM | ants on the PSL table |
|
|
7626
|
Thu Oct 25 21:02:34 2012 |
Den | Update | PEM | 1x7 dc power | We now stop using bench DC power
supplies for microphone preamp and PEM AA
board. DC power is wired from 1x5 rack suppliers. |
|
7645
|
Wed Oct 31 14:31:34 2012 |
Steve | Update | PEM | high particle count | High particle count confirmed with #2 counter |
|
7650
|
Wed Oct 31 22:56:41 2012 |
Den | Update | PEM | acoustic noise | Microphone preamp box had a low-pass filter
at 2kHz, Ayaka changed it to 20 kHz by replacing
100pF capacitor with a 10pF. |
6x |
7680
|
Wed Nov 7 11:43:29 2012 |
Steve | Update | PEM | high particle count ALART | The BS camber is open only. We should close
ASAP
Outside air quality is 1.7- 2.2 |
|
7681
|
Wed Nov 7 14:59:35 2012 |
Steve | Update | PEM | high particle count ALART & oplevs |
|
|
7733
|
Tue Nov 20 15:24:52 2012 |
Ayaka | Update | PEM | Seismometers and a microphone | I got two seismometers and one microphone
back from Tara.
They are now near the Gurlap under |
|
7734
|
Tue Nov 20 16:03:37 2012 |
janosch | Update | PEM | Seismometers and a microphone |
|
|
7744
|
Mon Nov 26 10:58:20 2012 |
Steve | Update | PEM | air cond maitenance tomorrow | Air conditioning maintenance is scheduled
for tomorrow morning till noon. |
|
7745
|
Mon Nov 26 18:36:17 2012 |
Jenne | Update | PEM | BLRMS back |
|
|
7754
|
Tue Nov 27 11:27:22 2012 |
Steve | Update | PEM | particle count is going up |
Jeff is still working on the filter banks. |
   |
7759
|
Wed Nov 28 23:18:35 2012 |
Charles | Update | PEM | Decreased RMS in Seismometers | The attached plots display RMS noise from
various accelerometers and seismometers over
the past 90 days. One can see how after the |
|
7762
|
Thu Nov 29 02:43:48 2012 |
Ayaka | Update | PEM | Decreased RMS in Seismometers |
|
  |
7763
|
Thu Nov 29 09:58:06 2012 |
Den | Update | PEM | Decreased RMS in Seismometers |
|
|
7777
|
Mon Dec 3 16:37:09 2012 |
Steve | Update | PEM | EM 172 microphones ordered |
|
|
7780
|
Tue Dec 4 10:44:36 2012 |
Steve | Update | PEM | short power outage | |
|
7807
|
Tue Dec 11 08:53:52 2012 |
Steve | HowTo | PEM | cables needs care | How NOT
to:
The |
|
7809
|
Tue Dec 11 10:09:04 2012 |
Ayaka | HowTo | PEM | cables needs care |
|
|
7819
|
Thu Dec 13 01:49:53 2012 |
rana | Update | PEM | seismometers |
|
|
7825
|
Thu Dec 13 21:21:34 2012 |
Den | Update | PEM | seismometers |
|
 |
7831
|
Fri Dec 14 09:05:04 2012 |
steve | Update | PEM | TT after eq 6.1 |
SRM, ITMY and MC3 moved some
what, but how are the TT? It may worth looking |
|
7841
|
Mon Dec 17 19:47:15 2012 |
rana | Update | PEM | Seismic StripTool config updated | I have updated the Seismic Striptool display
which is plotted on the wall in the control
room. Please take a look and make comments. |
|