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ID Date Author Type Category Subjectup Text Attachments
  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 
  10556   Wed Oct 1 10:21:19 2014 SteveUpdateVACpump down #78 stops at 3.5 Torr

    

       
            
 pd78secondStop.png 
  10555   Tue Sep 30 18:02:53 2014 SteveUpdateVACpump down #78 stops at 320 Torr 
We  stopped pumping just short
of 3 hours at 320 Torr.  Pumping speed
 3h.png 
  65   Tue Nov 6 09:14:37 2007 steveSummaryVACpump down 658 hr plot,
precondition: 5 days at atm,
vent objective: drag wiping mc1, mc2 & mc3
 pd65.jpg 
  6930   Fri Jul 6 09:52:35 2012 steveUpdateVACpump down hick up I can not understand what really
happened here with CC1 gauge or there was
really a pressure glitch.
 d3wFireworks.pngpdhickup.png 
  5363   Wed Sep 7 21:45:16 2011 kiwamuUpdateVACpump stopped. Pressure is at 450 mtorrI stopped puming at 9:30 PM and the pressure
in P1 is at 450 mtorr.
I followed exactly he procedure that
 vacuum.png 
  7438   Tue Sep 25 17:21:01 2012 SteveUpdateVACpumpdown completed IFO P1= 1mTorr,   CC1 =
5e-4 Torr.  The IFO is ready for work.
Be free to open the shutter and turn on HV
 pd73.pngpd73b.png 
  7441   Wed Sep 26 11:03:04 2012 SteveUpdateVACpumpdown completed The new cold cathode gauge CC1 is
in place. We were at atmosphere for 28 days
......more later
 40mpd73md1.png28datm.png 
  7454   Mon Oct 1 09:02:17 2012 SteveUpdateVACpumpdown reached vacuum normal

    

       
            
 pd73md6.pngpd73md6b.png 
  5365   Thu Sep 8 10:50:44 2011 steveUpdateVACpumpdown #71 comletedVacuum status:  " vacuum normal"  
CC1 pressure 5e-5 Torr
Slow roughing through butterfly valve
 pd#71.jpgmaglevpd.jpg 
  12483   Mon Sep 12 17:54:24 2016 SteveUpdateVACpumpdown 79 We are pumping down. The annuloses
are below 10 mTorr

The vacuum gauges are not communicating
  
  12488   Tue Sep 13 17:47:04 2016 SteveUpdateVACpumpdown 79 completedP1 IFO pressure is 1 mTorr, valve configuration: vacuum normal,
annulosses are pumped, RGA is off, not pumped.
  
  12492   Wed Sep 14 09:44:09 2016 SteveUpdateVACpumpdown 79 completedThe pumpdown started at
9-12-2016

The IFO is at 5e-5 Torr vacuum
 pd79.pngpd79d2.jpgCCcg.jpg 
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