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  40m Log, Page 27 of 344  Not logged in ELOG logo
IDup Date Author Type Category Subject Text Attachments
  1315   Mon Feb 16 23:09:52 2009 ranaUpdateElectronicsMC Servo Board offset gone bad!The attached plot shows that someone broke
the MC_SUM_MON channel around 10:30 AM this
past Wednesday the 11th. This is the EPICS
 mcoff.png 
  1316   Tue Feb 17 05:20:11 2009 YoichiUpdateLSCLockingSince we excluded *.snap and *.req files from
the svn control in the medm directory and
these were not restored by the svn co, the
  
  1317   Wed Feb 18 03:17:40 2009 YoichiUpdateLSCLocking Yoichi, Kakeru,

Last night, the cm_step script failed at
  
  1318   Wed Feb 18 03:25:25 2009 YoichiUpdateComputersmedm directory backI restored the medm directory from the backup
on the tape.
The directory had an svn property svn:ignore
  
  1319   Wed Feb 18 15:31:38 2009 steveBureaucracySAFETYemergency back-up lights checkedAll
13 exit and  emergency back-up lights
and their batteries were checked.
  
  1320   Wed Feb 18 19:13:20 2009 ranaConfigurationComputersSVN & MEDM & old medm filesAllegra had a 2 year old version of SVN installed
and CentOS (yum) couldn't upgrade it, so
I did an 'svn remove subversion'
  
  1321   Wed Feb 18 21:03:22 2009 ranaUpdateCamerasETMY Camera work not elogged!The control room video is showing us a
false ETMY image. Who worked on the ETMY
camera or video today??!!
  
  1322   Wed Feb 18 21:10:21 2009 ranaUpdateIOOMC Drumhead mode lost againIn early December, Caryn and I noticed that
the MC Drumhead mode was visible at the Qmon
point of
  
  1323   Thu Feb 19 04:16:17 2009 YoichiUpdateLSCLocking statusRob, Yoichi

We checked the CM-MC cross over just before
  
  1324   Thu Feb 19 11:51:56 2009 steveUpdateMOPAHTEMP variation is too muchThe C1:PSL-MOPA_HTEMP variation is more
than 0.5 C daily
Normally this
temp stays well within 0.1 C
This
 80dhtemp.jpg 
  1325   Thu Feb 19 16:29:43 2009 YoichiUpdateComputersMartian wireless router badThe Martian wireless router is dead.
I rebooted it several times, but it hangs
up in a minute.
  
  1326   Thu Feb 19 22:40:33 2009 KiwamuUpdateElectronicsPSL angle QPDI checked a broken QPD, which was placed
for PSL angle monitor, and finally I cocluded
one segment of the quadrant diode was
  
  1327   Thu Feb 19 23:50:31 2009 peteUpdateLockingaligned pd's on AP tableYoichi, Peter
While continuing our efforts to lock,
we noticed the procedure failed at a point
  
  1328   Fri Feb 20 01:54:18 2009 KakeruUpdateComputer Scripts / Programstdsdata might have a bugI found a strange jump of value in my data
taken with tdsdata.
I couldn't find same jump in
 jumped_data.png 
  1329   Fri Feb 20 03:52:23 2009 YoichiUpdateLockingLocking TonightYoichi, Peter

Tonight, we had a problem with the DD hand
  
  1330   Fri Feb 20 19:31:16 2009 YoichiUpdateLSCMICH low gain problemLast night, we found that MICH UGF was too
low. Even after re-aligning the PDs, it was
still too low.
  
  1331   Sun Feb 22 23:43:07 2009 carynSummaryGeneraltemperature sensorComparing  PSL-FSS-RMTEMP and PEM-MC1-TEMPS
So, to compare temp channels, I made
a plot of PSL-FSS_RMTEMP and PEM-MC1_TEMPS(the
 12x 
  1332   Mon Feb 23 11:07:01 2009 steveBureaucracySAFETYKiwamu receives safety trainingOsamu and Kiwamu received 40m safety training
on Thursday, Feb 19, 2009
Kiwamu needs Osamu's close supervision
  
  1333   Mon Feb 23 16:42:08 2009 josephbConfigurationCamerasCamera Beta TestingI've setup the GC650 camera (ID 32223)
to look at the mode cleaner transmission. 
I've also added an alias to the camera server
  
  1334   Tue Feb 24 02:23:40 2009 YoichiUpdateLockingLocking - MC board badRob, Yoichi, Alberto, Kiwamu, Kakeru

We found that the OMC alignment feedback
  
  1335   Tue Feb 24 18:42:15 2009 peteUpdateLockingmc board repairPeter, Yoichi
Last night:
  
  1336   Wed Feb 25 03:10:24 2009 YoichiUpdateLockingLocking statusRob, Yoichi, Kakeru, Kiwamu

Tonight, CARM -> MCL hand off was not stable.
  
  1337   Wed Feb 25 11:48:02 2009 JenneUpdatePEMWiener filtering update - work on filtering some S5 DARM_CTRL dataQuick update on my wiener filtering status:
Joe has been helping me get on the
GRID, so I now have  a grid certificate,
 h1_DARM_64s_4seis_25Feb09.pngh1_DARM_3600s_4seis_25Feb09.png 
  1338   Thu Feb 26 00:36:53 2009 YoichiSummaryComputersC1:LSC-TRX_OUT broken (and fixed later).Today, Kakeru tried to convert C1:LSC-TRX_OUT
and  C1:LSC-TRY_OUT to DAQ channels.
He edited C1LSC.ini in the chans/daq directory
  
  1339   Thu Feb 26 01:24:44 2009 YoichiUpdateComputersMartian wireless is backToday, a new wireless router arrived.
I configured and installed it. Now the martian
wireless network is back.
  
  1340   Thu Feb 26 19:20:08 2009 YoichiConfigurationGeneralETMX camera centered. POX, POY PDs centeredAlberto, Yoichi

We centered the ETMX camera.
  
  1341   Thu Feb 26 19:59:23 2009 YoichiUpdateLockingDaytime lockingOsamu, Yoichi

We tried locking today from about 2PM.
 CM1.pngCM2.pngCM3.png 
  1342   Thu Feb 26 20:09:32 2009 YoichiHowToComputersSR785 python scripts now produce plotsI updated the python scripts to remotely perform
measurements with an SR785.
Now these scripts can plot the results immediately
  
  1343   Fri Feb 27 13:49:19 2009 robUpdateLockingthurs nightCould not get past arm power of ~11 or
so.  I was suspicious of the transmon
high-gain/low-gain PD handover, so I ran
  
  1344   Mon Mar 2 03:57:44 2009 YoichiUpdateLockingSunday night lockingTonight's locking started with a boot fest
of the FE computers which were all red when
I came in.
  
  1345   Mon Mar 2 16:27:40 2009 AlbertoConfigurationElectronicsMC Drum Mode SR560 Preamplifier ReplacedToday I checked out the SR560 around the
lab. I confirmed that the one with the label
"channel A noisy" is effectively
  
  1346   Mon Mar 2 21:16:32 2009 YoichiUpdateLockingLow-gain High-gain PD switching may not be working wellOsamu, Yoichi

This afternoon, I run the locking script
  
  1347   Tue Mar 3 08:44:31 2009 steveUpdatePEMair cond. maintenance todayIFO room 104 air conditions will be shut
down for maintenance today.
This
should be finished by noon.
The
  
  1348   Tue Mar 3 10:39:07 2009 AlbertoUpdateLSCc1lsc discontinued functioningThe c1lsc has been unstable since last
night. Its status on the DAQ screen was oscillating
from green to red every minute.
  
  1349   Tue Mar 3 11:39:50 2009 OsamuDAQComputers2 PCs in Martian Kiwamu and I brought 2 SUPER MICRO
PCs from Willson house into 40m.
Both PCs are hooked up into Martian
  
  1350   Tue Mar 3 19:26:44 2009 YoichiUpdateLockingLow-gain High-gain PD switching may not be working wellI checked the switching of the QPDX from high
gain to low gain.
Switching happens as expected, but the low
  
  1351   Tue Mar 3 23:59:26 2009 YoichiUpdateLockingLow-gain High-gain PD switching may not be working well[quote]I checked the switching of the QPDX
from high gain to low gain.
Switching happens as expected, but the low
  
  1352   Wed Mar 4 03:37:51 2009 YoichiUpdateLockingLow-gain High-gain PD switching may not be working well[quote]
This sounds like the QPD whitening gain sliders
may be stuck.  The slider twiddling script
  
  1353   Wed Mar 4 03:50:17 2009 YoichiUpdateLockingStill won't go above arm power 10Yoichi, Kentaro

The IFO still loses lock at around arm power
 lockLoss1.pnglockLoss2.pnglockLoss3.png 
  1354   Wed Mar 4 12:38:07 2009 AlbertoUpdateComputer Scripts / Programs3f locking simulationsI simulated the REFL signals demodulated
at the differential frequencies of the sidebands
(f2-f1), at their summed frequencies (f2+f1).
 23_3f_40mOld_DDplots.pdf59_3f40m_Upgrade_DDplots.pdf20_3f_AdvL_DDplots.pdf 
  1355   Wed Mar 4 17:20:04 2009 josephbUpdateCamerasCamera code upgradesI've updated the digital camera python
code as well as changed the network topology.
At the moment, both cameras are connected
  
  1356   Wed Mar 4 17:59:14 2009 YoichiConfigurationComputersezca tools and tds tools work aroundSome of ezca commands and tds commands sporadically
fail with a segmentation fault on linux machines.
As far as I know, ezcawrite, ezcastep, ezcaswitch,
  
  1357   Wed Mar 4 23:42:45 2009 ranaConfigurationPSLpsl db changeI made   
  1358   Thu Mar 5 00:06:32 2009 Kakeru, RanaUpdateIOOWFS centeringWe found that the MC REFL image was no longer
round and that the MCWFS DC quadrant spots
were mostly
 IOO_graph.jpg 
  1359   Thu Mar 5 01:09:29 2009 rana, albertoUpdateDMFstill not workingWe tried to run DMF on mafalda, but it didn't
work. I tried to compile it using Rob's elog
instructions.
  
  1360   Thu Mar 5 02:24:19 2009 ranaConfigurationComputersyum.repos.dI added the following repos which
I found on allegra to megatron and then did
a 'yum install sshfs' on both machines:
  
  1361   Thu Mar 5 05:07:09 2009 YoichiUpdateLockingWednesday night lockingTonight, I was having a problem with the PO_DC
hand-off.
It fails most of the time.
 lockLoss5.pnglockLoss5-zoom.png 
  1362   Thu Mar 5 23:18:38 2009 KakeruConfigurationComputerstdsdata doesn't workI found that tdsdata doesn't work.

When I star tdsdata, he takes a few ~ 10
  
  1363   Fri Mar 6 01:04:49 2009 Kiwamu IZUMIConfigurationIOO!! lock-in amp disconnected !!The power supply of a lock-in amp, which
is on the Y-arm side of PSL clean room, was
pulled out by my mistake.
  
  1364   Fri Mar 6 05:44:14 2009 YoichiUpdateLockingLocking distracted by the QPD whitenning problem againTonight, I was able to ramp up the arm power
to around 20. Then the DARM loop started
to oscillate and the IFO lost lock in a few
  
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