ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
9971
|
Mon May 19 22:44:21 2014 |
den | Update | PEM | xend sei isolation kit is set |
|
|
10003
|
Thu May 29 08:43:34 2014 |
manasa | Update | PEM | Ant season already in | Ant season has set in. I spotted and killed
a few ants around the optics |
|
10023
|
Wed Jun 11 08:57:49 2014 |
Steve | Update | PEM | air cond maintenance tomorrow morning |
|
|
10075
|
Thu Jun 19 17:11:52 2014 |
steve | Update | PEM | it is warmer today | The PSL HEPA was running at 30VAC-variac.
It is 1 degree C warmer than usual. The HEPA
fan motor turned up to 60 V |
|
10119
|
Wed Jul 2 11:32:44 2014 |
Jenne, TaraV | Update | PEM | Status of seismometer stations, Yend Guralp moved | [Jenne, TaraV]
We had a look this morning at
the status of the seismometer array, so that |
|
10141
|
Mon Jul 7 16:39:26 2014 |
Steve | Update | PEM | ants on the PSL table |
|
|
10368
|
Tue Aug 12 13:31:58 2014 |
Jenne | Update | PEM | Seismometer cables in place, ready for sensors | [TaraV, Jenne]
The short cable from the slab to
the sensor has been assembled and installed |
|
10523
|
Mon Sep 22 10:18:58 2014 |
steve | Update | PEM | lab temperatures |
|
|
10539
|
Thu Sep 25 11:38:47 2014 |
Jenne | Update | PEM | Seismometers in place | [Zach, Jenne, Steve]
This work happened on Tuesday.
Bad Jenne for forgetting to elog it! |
|
10560
|
Thu Oct 2 14:36:52 2014 |
steve | Update | PEM | oil drops on vertex crane |
|
|
10665
|
Tue Nov 4 10:40:46 2014 |
steve | Update | PEM | lab temperatures and particle counts |
|
|
10711
|
Thu Nov 13 22:52:48 2014 |
kate | Update | PEM | Seismometers set up for huddle test | Jenne, Diego, Kate
We want to conduct a huddle test
with the three 40m seismometers (2 Guralps |
  |
10721
|
Sat Nov 15 21:51:09 2014 |
rana | Update | PEM | Seismometers set up for huddle test | In order to do high quality
huddle subtraction, we need to align the
seismometer axes to high precision. We would |
|
10761
|
Mon Dec 8 09:03:49 2014 |
steve | Update | PEM | air cond maintenance tomorrow morning |
AC maintenance is scheduled
from 8am till 11am tomorrow morning. |
|
10773
|
Wed Dec 10 14:26:13 2014 |
steve | Update | PEM | air cond maintenance and particle plot |
|
|
10790
|
Fri Dec 12 10:38:22 2014 |
Steve | Update | PEM | leaky roof | The first real rain of this year finds
only one leak at the 40m |
|
10922
|
Tue Jan 20 09:32:19 2015 |
Steve | Update | PEM | dusty Monday morning | Yesterday morning was dusty. I wonder why?
The PRM sus damping was restored
this morning. |
|
10939
|
Mon Jan 26 13:07:28 2015 |
Jenne | Update | PEM | Seismometers back in nominal places | I have just put the seismometers back into
their nominal positions, on the concreted
slabs. The T-240 is in the vertex, |
 |
10948
|
Wed Jan 28 08:53:01 2015 |
Steve | Update | PEM | Seismometer Vertex is covered |
|
|
10976
|
Wed Feb 4 19:21:45 2015 |
Jenne | Update | PEM | Seismometer Vertex is covered | I opened up the spaghetti pot over the
vertex seismometer, and taped the cable to
the slab. The way the cable is coiled, |
|
10983
|
Fri Feb 6 10:03:23 2015 |
Steve | Update | PEM | dusty days |
|
|
11089
|
Tue Mar 3 02:43:06 2015 |
Jenne | Omnistructure | PEM | No heat?? | It's super cold in the control room
and EE bench area tonight. I'm
wondering if, similar to what happened on |
|
11091
|
Tue Mar 3 04:43:12 2015 |
Jenne | Omnistructure | PEM | Ottavia is dead? | After some searching, including help from
4 security guys (I think they don't have
a lot to do at 4:30am :), we found that |
|
11188
|
Wed Apr 1 10:50:59 2015 |
Steve | Update | PEM | construction ahead | The 40m fenced area will start storing
this large ~ 8000 lbs chamber on April 14.
The asphalt will be cut, jack hammered the |
|
11203
|
Mon Apr 6 09:13:49 2015 |
Steve | Update | PEM | jackhammering at ETMX |
|
  |
11204
|
Mon Apr 6 13:23:40 2015 |
rana | Update | PEM | jackhammering at ETMX | Unfortunately, this kind of trend plot
is not detailed enough to know if something
has gone bad in a quantitative way. But at |
|
11205
|
Tue Apr 7 04:17:42 2015 |
Jenne | Update | PEM | jackhammering at ETMX | Q is writing the locking elog for the night,
but just to reply to this thread: The
IFO worked well tonight, so things are at |
|
11211
|
Thu Apr 9 07:41:22 2015 |
Steve | Update | PEM | jackhammering at ETMX | There was a period of short unexpected
jackhammering this morning. I asked them
to stop. |
 |
11217
|
Tue Apr 14 11:19:52 2015 |
Steve | Update | PEM | large chamber has arrived | It is here.
|
 |
11259
|
Mon Apr 27 09:09:15 2015 |
Steve | Update | PEM | air cond filters checked |
|
|
11268
|
Sun May 3 01:04:19 2015 |
rana | Summary | PEM | Seismo signals are bad | https://ldas-jobs.ligo.caltech.edu/~max.isi/summary/day/20150502/pem/seismic/
Looks like some of our seismometers
are oscillating, not mounted well, or something |
|
11289
|
Wed May 13 10:07:36 2015 |
rana | Frogs | PEM | Guralp breakout paddle | Reward being offered for the safe return
of this thing:
|
|
11290
|
Wed May 13 13:33:34 2015 |
Steve | Frogs | PEM | Guralp breakout box recovered | COD_Sugar napolion is due to Steve:
Item delivered, model CMG-SCU-0013, sn G9536
|
|
11291
|
Thu May 14 17:41:10 2015 |
rana | Update | PEM | weather station and Guralp maintenance | Today Steve and I tried to recenter the
Guralps. The breakout box technique didn't
work for us, so we just turned the leveling |
 |
11295
|
Sat May 16 21:40:29 2015 |
rana | Update | PEM | Guralp maintenance | Tried swapping cables at the Guralp interface
box side. It seems that all of our seismic
signal problems have to do with the GUR2 |
|
11309
|
Tue May 19 11:50:52 2015 |
manasa | Update | PEM | No noticeable effect from M4.0 earthquake | There was an earthquake: M4.0
- 40km SSW of South Dos Palos, California
No noticeable effects on the IFO. |
|
11316
|
Tue May 19 19:24:30 2015 |
rana | Update | PEM | Seismic BLRMS filters | I was wondering about the design of the
BLRMS fitlers for the seismic channels since
the STS ones seem to have so little gain |
 |
11324
|
Tue May 26 11:05:10 2015 |
Steve | Update | PEM | worked around ETMY seism. | The cable tray holder cross beam is removed
and cut short for good access to seismometer. |
 |
11329
|
Thu May 28 10:42:19 2015 |
Steve | Update | PEM | bad Guralp X-cable |
|
 |
11330
|
Thu May 28 15:10:44 2015 |
rana | Update | PEM | Seismic Confusion | You are plotting the STS channels,
not Guralp. These are for the Trillium
240 seismometer. |
|
11331
|
Thu May 28 16:43:52 2015 |
Steve | Update | PEM | Guralps swapped | Koji and Steve,
The result: bad Guralp x-arm cable.
I will swap the short cables tomorrow |
|
11341
|
Mon Jun 1 15:22:19 2015 |
Steve | Update | PEM | Guralps X- short cable is bad |
|
|
11345
|
Wed Jun 3 17:04:08 2015 |
ericq | Update | PEM | Wilcoxon Accelerometer Huddle Test | I've set up the Wilcoxon accelerometers
on the SP table for a huddle test, to estimate
their noise levels. |
|
11350
|
Wed Jun 10 02:50:39 2015 |
ericq | Update | PEM | Wilcoxon Accelerometer Huddle Test | Here are some results for the 3-corner
hat subtraction for the six accelerometers,
from ~1 hour of data that didn't |
 |
11359
|
Mon Jun 15 16:55:39 2015 |
ericq | Update | PEM | Accelerometers installed | The accelerometers have been installed
at MC1 and MC2. MC2 data is live, I haven't
yet run the cables from the MC1 set to the |
  |
11362
|
Wed Jun 17 15:31:50 2015 |
ericq | Update | PEM | Accelerometers fully installed | MC1 accelerometer has been plugged in.
The modecleaner locking has been intermittent
today, but I looked at a 15 minute lock in |
 |
11367
|
Sun Jun 21 13:21:03 2015 |
rana | Update | PEM | Wilcoxon Accelerometer Huddle Test | To improve our sensor
noise estimate, the ACC cables should
be clamped using a rubber pad and a big dog |
|
11372
|
Tue Jun 23 11:18:20 2015 |
Steve | Update | PEM | cleaning around chambers | Keven is our regular janitor is out for
a few weeks.
The sub is careful- gentel Mario. |
|
11388
|
Wed Jul 1 11:45:48 2015 |
Steve | Update | PEM | cleaning around ETMX chamber |
|
|
11391
|
Sun Jul 5 18:14:13 2015 |
Ignacio | Update | PEM | Wilcoxon Accelerometer Huddle Test | Updated: On Thursday/Friday (sorry
for late elog) I was messing with Eric's
Wilcoxon 731A accelerometer huddle test data |
8x |