| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1204
|
Wed Dec 24 12:46:54 2008 |
Yoichi | Update | Computers | Test points are back | Rob told me how to restart the test point
manager.
It runs on fb40m and actually there is an |
|
|
1203
|
Wed Dec 24 10:33:24 2008 |
Yoichi | Update | Computers | Several fixes. Test point problem remains. | Yesterday, I fixed several remaining problems
from the power failure.
|
|
|
1202
|
Tue Dec 23 10:35:40 2008 |
Yoichi | Update | Computers | RFM network breakdown mostly fixed | Rana, Rolf, Alberto, Yoichi
The source of the problem was the RFM bypass |
|
|
1201
|
Mon Dec 22 13:48:22 2008 |
Yoichi | Update | Computers | RFM network bypass box's power supply is dead | As a temporary fix, I cut the cable of the
power supply and connected it to the Sorensen
power supply +5V on the rack.
|
|
|
1200
|
Sun Dec 21 14:18:04 2008 |
Yoichi | Update | Computers | RFM network bypass box's power supply is dead | I restarted the front-end computers by power
cycling them one-by-one.
After issuing startup commands, most of them |
|
|
1199
|
Sun Dec 21 13:00:06 2008 |
steve | Update | all down cond. | vac and laser back on | There was a power outage sometimes early Saturday.
All things are down.
|
|
|
1198
|
Sat Dec 20 23:37:43 2008 |
rob | Omnistructure | General | Saturday Night Fever after presumed power failure |
Just came by to pick something up...
|
|
|
1197
|
Fri Dec 19 16:38:09 2008 |
steve | Update | LSC | all optlevs centered | All optlevs were centered after full alignment.
Qpd sums are:
|
|
|
1196
|
Fri Dec 19 14:35:58 2008 |
Yoichi Alberto | Update | IOO | MC WFS and IOO-POS QPD re-centering | For the past two days, the MC alignment has
kept drifting.
This morning, the MC alignment was so bad |
|
|
1195
|
Fri Dec 19 11:29:16 2008 |
Alberto, Yoichi | Configuration | MZ | MZ Trans PD | Lately, it seems that the matching of the
input beam to the Mode Cleaner has changed.
Also, it is drifting such that it has become |
|
|
1194
|
Fri Dec 19 11:18:52 2008 |
Alberto | Configuration | General | Mode Cleaner Temperature Monitor | I reduced from 10 to 5 the gain of the SR560
that Caryn has set up after the lock-in amplifier
nest to the PSL rack because the overload |
|
|
1193
|
Thu Dec 18 19:15:54 2008 |
Alberto, Yoichi | Configuration | SUS | Mode Cleaner Cavity Alignment | [quote]This morning I found the MC locked
to the 10 mode. When I locked it on the 00
mode, it was unstable and eventually it always |
|
|
1192
|
Thu Dec 18 12:52:00 2008 |
Alberto | Configuration | SUS | Mode Cleaner Cavity Alignment | This morning I found the MC locked to the
10 mode. When I locked it on the 00 mode,
it was unstable and eventually it always |
|
|
1191
|
Tue Dec 16 19:06:01 2008 |
Yoichi | Update | PSL | Reference cavity ring down repeated many times | Today, I repeated the reference cavity ring
down measurement many times to see how much
the results vary.
|
|
|
1190
|
Fri Dec 12 22:51:23 2008 |
Yoichi | Update | PSL | Reference cavity ring down measurement again | Bob made new HV-cables with HV compatible
coaxes. The coax cable is rated for 2kV,
which was as high as Bob
|
|
|
1189
|
Tue Dec 9 10:48:17 2008 |
Caryn | Summary | General | calibrating the jenne laser: impedance mismatch? |
We sent RFout of network analyzer to a splitter,
with one side going back to the network analyzer |
|
|
1188
|
Mon Dec 8 17:50:21 2008 |
Yoichi | Update | SUS | ITMY drift | The suspension drift monitor shows that the
ITMY alignment was shifted after the earthquake.
Looks like only the UL sensor had a step |
|
|
1187
|
Mon Dec 8 11:54:27 2008 |
Yoichi | Update | General | IFO mirrors aligned | This morning, I re-aligned the IFO mirrors
to see if they were badly moved by the earthquake.
The both arms locked just by the restoring |
|
|
1186
|
Mon Dec 8 11:41:27 2008 |
Yoichi | Summary | VAC | The rough pump for the TP2 replaced | Bob, Yoichi
The foreline pressure of the TP2 (the foreline |
|
|
1185
|
Mon Dec 8 00:10:42 2008 |
caryn | Summary | General | calibrating the jenne laser | I apologize in advance for the long list of
numbers in the attachment. I can't seem to
make them hide for some reason.
|
|
|
1184
|
Sun Dec 7 16:12:53 2008 |
rana | Update | DAQ | booted awg | [SIZE=3]because it was [COLOR=red]red[/COLOR][/SIZE] |
|
|
1183
|
Sun Dec 7 16:02:46 2008 |
rana | Update | General | Mag 5.1 EQ halfway to Vegas | There was a [URL=http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/ci14408052.php#details]Mag
5.1 EQ[/URL] Friday night at 8:18 PM.
|
|
|
1182
|
Fri Dec 5 21:31:11 2008 |
Yoichi | Update | IOO | drum modes observable without excitation | The calibration of the MC_F feedback is posted
in elog:1032.
I'm not sure where Caryn took MC signal, |
|
|
1181
|
Fri Dec 5 20:40:38 2008 |
Yoichi | HowTo | Computers | Elog multi-keyword search | The current Elog search allows you to look
for only one keyword in the text.
You cannot search for two keywords by simply |
|
|
1180
|
Fri Dec 5 14:13:41 2008 |
rana | Summary | IOO | MC trend for the last 4 days | [COLOR=pink][SIZE=2][FONT=Comic Sans MS]The
MC has stayed locked for ~3 days! I just
broke it to reset the MZ.[/FONT][/SIZE][/COLOR] |
|
|
1179
|
Fri Dec 5 09:29:59 2008 |
rana | Update | IOO | drum modes observable without excitation | Not sure what the y-scale is since there aren't
any y axis labels in the plot, but it seems
like we
|
|
|
1178
|
Fri Dec 5 01:58:58 2008 |
Yoichi | Configuration | ASC | tdscntr.pl now works at 40m | Tobin gave me the perl version of tdscntr
some time ago.
Pinkesh and I modified and tested it at LHO.
|
|
|
1177
|
Fri Dec 5 01:41:33 2008 |
Yoichi | Configuration | Computers | MEDM screen snapshot now works on linux machines | As a part of my "make everything work on linux"
project, I modified 'updatesnap' script so
that linux machines can update MEDM screen |
|
|
1176
|
Thu Dec 4 17:42:23 2008 |
caryn | Update | IOO | drum modes observable without excitation | So, the mode cleaner was evidently aligned
better and now the drum modes are observable
using DTT.
|
|
|
1175
|
Thu Dec 4 16:29:20 2008 |
josephb | Configuration | Computers | Error message on Frame Builder Raid Array | The Fibrenetix FX-606-U4 RAID connected to
the frame builder in 1Y7 is showing the following
error message: IDE Channel #4 Error Reading |
|
|
1174
|
Thu Dec 4 13:49:39 2008 |
Jenne | Update | PEM | More of: Comparing Wiener subtraction using different sensors | Here is another version of the same type plot
I put in the elog yesterday. This plot is
looking at the 7200 seconds after 04Dec2008 |
|
|
1173
|
Wed Dec 3 20:36:07 2008 |
Jenne, Rana | Update | PEM | Comparing Wiener subtraction with different seismometers | The Ranger has now been moved over to sit
underneath the MC2 tank (it was previously
close to the PSL rack). It
|
|
|
1172
|
Wed Dec 3 20:10:09 2008 |
Jenne, Rana | Update | PEM | Comparing Wiener subtraction with different seismometers | Attached is a plot of MC_L, and then the residual
MC_L after static Wiener filtering, using
different combinations of our accelerometers |
|
|
1171
|
Wed Dec 3 19:21:09 2008 |
rana | Configuration | PEM | Ranger move | I looked at the Ranger signals. [B]Somehow
it has a relative transfer function of 'f'
between it and the Guralp.[/B]
|
|
|
1170
|
Wed Dec 3 12:49:11 2008 |
jenne | Update | Computers | something sketchy with NDS ... or something | [SIZE=2][COLOR=green]Never mind...I had forgotten
that you have to run mdv_config every time
you open matlab, not just every time you |
|
|
1169
|
Wed Dec 3 11:58:10 2008 |
Alberto | Update | PSL | MC Alignment | Rana, Alberto,
more details on the MC alignment we did yesterday.
|
|
|
1168
|
Tue Dec 2 19:51:32 2008 |
rana | Update | PEM | half-micron particle count is alarming | The 0.5 micron dust monitor count is now pretty
high (36000). I wandered around the lab to
see if there was anything
|
|
|
1167
|
Tue Dec 2 19:18:10 2008 |
rana | Summary | PEM | Ranger SS-1 | In entry http://dziban.ligo.caltech.edu:40/40m/881
and a follow up from Jenne I put in the Ranger
calibration.
|
|
|
1166
|
Tue Dec 2 17:56:56 2008 |
Alberto, Rana | Configuration | PSL | MC Alignment | In the attempt to maximize the Mode Cleaner
transmission and minimize the reflection
from the steering mirrors of the MC periscope, |
|
|
1165
|
Mon Dec 1 15:09:27 2008 |
rob | Update | PEM | half-micron particle count is alarming | |
|
|
1164
|
Thu Nov 27 22:56:42 2008 |
rana | Configuration | Environment | temperature | 8-) |
|
|
1163
|
Tue Nov 25 19:29:15 2008 |
rana, alberto, john | Configuration | Environment | temperature | [quote]The PSL Room Temperature was alarming
because it had gone above 23 C. This set
off an unfortunate chain of events:
|
|
|
1162
|
Tue Nov 25 18:38:03 2008 |
Alberto, Rob | Update | PSL | MC Periscope Alignment | This morning when I came in I found the MC
cleaner unlocked and the autolocker script
could not lock it. The reflected beam was |
|
|
1161
|
Mon Nov 24 19:15:16 2008 |
rana, alberto, john | Configuration | Environment | temperature | The PSL Room Temperature was alarming because
it had gone above 23 C. This set off an unfortunate
chain of events:
|
|
|
1160
|
Mon Nov 24 17:14:44 2008 |
rana | Update | PSL | Mach Zender trends | It looks like the MZ has gotten less drifty
after the alignment on Friday. |
|
|
1159
|
Mon Nov 24 16:43:34 2008 |
rana | Configuration | Computers | Alex and Jay took away some computers from the racks | I was over at Wilson house and saw Jay and
Alex bring in 3 rackmount computers. One
was a Sun 4600 and
|
|
|
1158
|
Sat Nov 22 10:55:51 2008 |
Caryn | Configuration | IOO | Drum modes Lock-In settings changed | I unhooked the MC Demod Board's Qmon signal
from the Lock-In. Set the demodulation frequency
to 31.11Hz with 1V amplitude, and
|
|
|
1157
|
Fri Nov 21 21:28:32 2008 |
rana | Summary | Computers | c0daqawg restart | [COLOR=green]A few minutes after restarting
fb0 for the Guralp channels, the DAQAWG lights
went red on the DAQ screens.[/COLOR]
|
|
|
1156
|
Fri Nov 21 21:20:24 2008 |
rana | Update | PEM | Guralp noise measurement | This is the spectra and time series of the
Guralp channels along with the Ranger (MC2).
Looks like we could reduce the gain
|
|
|
1155
|
Fri Nov 21 20:29:43 2008 |
rana, alberto, rob | Update | PSL | Mach Zender alignment | [quote] So now the MZ alignment seems good;
Alberto is on the MC periscope alignment
like a cheap suit.[/quote]
|
|