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ID Date Author Type Category Subjectup Text Attachments
  11384   Tue Jun 30 11:33:00 2015 JamieSummaryCDSprepping for CDS upgradeThis is going to be a big one.  We're
at version 2.5 and we're going to go
to 2.9.3.
  
  4567   Mon Apr 25 22:38:49 2011 kiwamuUpdateLSCprepration for DRMI : Y arm flashingThis
week is going to be a recycled Michelson
  
  14247   Fri Oct 12 17:37:03 2018 SteveUpdateVACpressure gauge choices We want to measure the pressure gradient
in the 40m IFO

Our old MKS cold cathodes are out
  
  5017   Fri Jul 22 10:24:34 2011 steveUpdateVACpressure plot at day 213Dec 21, 2010 we pumped down the MARK4 rebuilt
40m-IFO and the malev has been pumping on
it since than
 p.jpg 
  5767   Mon Oct 31 08:55:19 2011 steveUpdateVACpressure plot at day 53


   
        
            
 pd71-m-d53.png 
  13184   Thu Aug 10 14:14:17 2017 KiraUpdatePEMpreviously built temp sensorI decided to see what was inside the sensor
that had been previously made. According
to elog 1102, the temperature sensor is LM34,
 IMG_20170810_112315.jpg 
  5889   Mon Nov 14 21:22:48 2011 ranaConfigurationComputersprimetime RSYNC slowing down NODUSnodus:elog>w; who ; date
  9:20pm  up 44 day(s), 
5:14,  5 users,  load average:
  
  3863   Thu Nov 4 17:53:29 2010 yutaUpdateCDSprimitive python script for A2L measurementSummary:
 
I wrote
 a2ltest.png 
  5296   Wed Aug 24 11:40:21 2011 jamie, jenne, kiwamu, suresh, steveUpdateSUSproblem with ITMXITMX was drag wiped, and the suspension
was put back into place.  However, after
removing all of the earthquake stops we found
  
  7863   Thu Dec 20 12:14:19 2012 JamieUpdateGeneralproblem with in-vac wiring for TTsNic and I discovered a problem with the
in-vac wiring from the feed-thru to the top
of the table.  Pin 13 at the top of
  
  7341   Tue Sep 4 20:20:47 2012 jamieUpdateGeneralproblematic tip-tilts

    

       
            
  
  2013   Mon Sep 28 17:39:34 2009 robUpdatePSLproblemsThe PSL/IOO combo has not been behaving
responsibly recently. 
The first attachment is a 15 day
 problems.pngproblems2.png 
  6699   Tue May 29 00:53:57 2012 DenUpdateCDSproblemsI've noticed several CDS problems:

    Communication sign on
C1SUS model turns to red once in a while.
  
  11252   Sun Apr 26 00:56:21 2015 ranaSummaryComputer Scripts / Programsproblems with new restart procedures for elogd and apacheSince the nodus upgrade, Eric/Diego changed
the old csh restart procedures to be more
UNIX standard. The instructions are in the
  
  11267   Fri May 1 20:33:31 2015 ranaSummaryComputer Scripts / Programsproblems with new restart procedures for elogd and apacheSame thing again today. So I renamed the   
  16991   Tue Jul 12 13:59:12 2022 ranaSummaryComputersprocess monitoring: MonitI've installed Monit
on megatron and nodus just now, and will
set it up to monitor some of our common processes.
  
  11093   Tue Mar 3 11:38:11 2015 SteveUpdatesafetyprofessional crane inspection 




 450lbs2015.jpg 
  12015   Wed Mar 2 10:09:28 2016 SteveUpdatesafetyprofessional crane inspectionThe crane inspection is scheduled for this
coming Friday from 8-12

 
  
  716   Tue Jul 22 16:50:09 2008 steveMetaphysicsEnvironmentprofessorial clean up of work benchAtm1: is showing the spiritual satisfaction
after work bench clean up by the professor
himself.
 ranaclup.pngcleanup2.png 
  8048   Fri Feb 8 23:22:48 2013 DenSummaryModern Controlprogress report I wrote a small document on the application
of LQG method to a Fabry-Perot cavity control.
 LQG.pdf 
  7646   Wed Oct 31 17:11:40 2012 jamieUpdateAlignmentprogress, then setbackjamie, nic, jenne, den, raji, manasa
We were doing pretty well with alignment,
until I apparently fucked things up.
  
  7647   Wed Oct 31 17:18:34 2012 JenneUpdateAlignmentprogress, then setback - trend of BS table shiftHere is a two hour set of second trends
of 2 sensors per mirror, for BS, PRM, ITMY
and MC1.  You can see about an hour
 PRM_BS_table_bumped_ITMY_MC1_no_big_change_2hoursBack.png 
  7649   Wed Oct 31 17:36:39 2012 jamieUpdateAlignmentprogress, then setback - trend of BS table shift

    

       
            
  
  7651   Thu Nov 1 01:51:37 2012 ranaUpdateAlignmentprogress, then setback - trend of BS table shift  But these jumps in the OSEMs
are all at the level of 10-20 microns. Seems
like that wouldn't be enough to account for
  
  7652   Thu Nov 1 08:48:42 2012 steveUpdateAlignmentprogress, then setback - trend of BS table shift

    

       
            
 alignmentstrugle2d.pngalignmentstrugle2da.pngbefpd09252012.png 
  7655   Thu Nov 1 10:58:49 2012 jamieUpdateAlignmentprogress, then setback - trend of BS table shiftHere's a plot of the BS, PRM, and MC1 suspension
shadow sensor trends over the last 24 hours. 
I tried to put everything on the same Y scale:
 foo.png 
  7805   Mon Dec 10 16:28:13 2012 jamieOmnistructureComputersprogressive retrieval of online data now possible with the new NDS2 clientLeo fixed an issue with the new nds2-client
packages that was preventing it from retrieving
online data.  It's working now from
  
  1565   Fri May 8 15:40:44 2009 peteUpdateLockingprogressively weaker locksthe align script was run after the third
lock here.  it would have been interesting
to see the arm powers in a 4th lock 
 powers_3lock.pdf 
  13678   Mon Mar 12 13:58:37 2018 gautamUpdateGeneralprojector light bulb blownBulb went out ~10am today. Looks like the
lifetime of this bulb was <100 days.

Steve:
  
  13208   Tue Aug 15 08:22:16 2017 SteveUpdateGeneralprojector light bulb replacedBL-FS300C-PH-LE was
replaced after 2,904 hrs  It did
not explode this time.  The 4 monts
  
  13499   Wed Jan 3 15:13:55 2018 SteveUpdateGeneralprojector light bulb replacedBulb 
is replaced.

  
  13695   Wed Mar 21 10:00:35 2018 steveUpdateGeneralprojector light bulb replacedLight bulb replaced.




  
  14048   Tue Jul 10 14:20:09 2018 steveUpdateGeneralprojector light bulb replacedBulb replaced at day 110  We have
now spare now.

 
  
  14316   Mon Nov 26 10:22:16 2018 aaronUpdateGeneralprojector light bulb replacedI replaced the projector bulb. Previous
bulb was shattered.
  
  3649   Tue Oct 5 13:52:15 2010 ranaUpdateCDSproof of trend   Untitled.png 
  3626   Thu Sep 30 13:43:29 2010 steveUpdateSAFETYpropane gas smell in control roomThe control room's north west corner smelled
like propane gas  yesterday around 16:30
We all agreed that the smell was
  
  12872   Tue Mar 7 15:17:19 2017 SteveBureaucracyGeneralproperty tagProperty tag found.  property_tag.jpg 
  12058   Thu Mar 31 19:49:31 2016 gautamUpdateendtable upgradeproposed layout v2The major changes from the previous layout:


I've depicted the Green
reflected beam path more accurately - I approximately measured
 ETMX_proposed_layout_v2.pdf 
  12060   Mon Apr 4 10:59:12 2016 gautamUpdateendtable upgradeproposed layout v3I realized I had overlooked an important
constraint in the layout, which is that the
enclosure will have two supports that occupy
 ETMX_proposed_layout_v3.pdfIR_modematch.pdfGreen_modematch.pdfXendALaMode.zipETMX_proposed_layout_dimensions.dwg 
  5527   Thu Sep 22 23:10:07 2011 SureshUpdateIOOproposed modifications to the C1IOO modelRana advised that we put in a lockin-output
matrix which will allow us to excite any
combination of MC mirrors so that we can
  
  8270   Mon Mar 11 16:29:29 2013 SteveUpdatePEMproposed seismometer locationsGranite base 20" x 20" x 5" 
locations are on the CES side of our IFO
arms:  as shown ETMY_ south-west, ETMX_north-east,
 ETMY_sw.jpgITMX_se.jpgETMX_ne.jpg 
  8272   Mon Mar 11 19:01:21 2013 JenneUpdatePEMproposed seismometer locationsThis is my interpretation of where Steve
is proposing to place the seismometers (he
wrote ITMX southwest, but I'm pretty sure
 SeismometerProposedPositions_11March2013.pdf 
  10203   Tue Jul 15 17:34:01 2014 manasaUpdatePSLproposing AOM re-alignmentI am going to tweak the alignment of the
beam into the AOM (before the PMC) tomorrow
morning. If anybody has any objections to
  
  971   Fri Sep 19 08:09:55 2008 steveUpdatePSLpsl HEPAs turned onI have just turned on the PSL HEPA filters
at 60% operational speed.
  
  1357   Wed Mar 4 23:42:45 2009 ranaConfigurationPSLpsl db changeI made   
  876   Mon Aug 25 10:51:06 2008 steveUpdatePSLpsl headtemp is coming downThe laser water cooler was overflowing this
morning.
I removed 500 cc water from the chiller.
 ht4dw.jpg 
  2943   Tue May 18 11:54:29 2010 steveConfigurationSAFETYpsl mechanical shutter is not workingAs we learned yesterday, the PSL laser
power out put mechanical shutter is not working
in the remote mode. It only works in local
  
  1638   Mon Jun 1 14:49:07 2009 robSummaryPSLpsl thoughtsSome thoughts on what happened with the
MOPA cooling.  
Some unknown thing happened to precipitate
  
  10557   Wed Oct 1 16:26:53 2014 SteveUpdateVACpump down #78 completed 
 Pump down reached "vacuum
normal" state. IFO _P1 pressure 1e-4
 pd78completedin25hrs.png 
  10553   Tue Sep 30 16:18:57 2014 SteveUpdateVACpump down #78 has started 
Q checked the earth quake stops of
SRM and we put the ITMY & BS doors on. 
 pd78hastarted.png 
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