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  40m Log, Page 272 of 339  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  3404   Thu Aug 12 10:56:31 2010 steveUpdateEnvironment dusty floor work in progresI powered down 1Y1 and 1Y2 instrument racks
of MC and RF-systems this morning.
Both racks, SP table, clean tools-parts
  
  3403   Wed Aug 11 16:56:00 2010 KojiSummaryEnvironmentCovering of the IFOKatharine, Sharmila, Gopal, Kiwamu,
Jenne, Aidan, Steve, and Koji
A guy from the carpenter shop has
 IMG_2732.jpg 
  3402   Wed Aug 11 16:38:02 2010 JennaUpdateElectronicsRubidium clock phase noise


   
        
            
  
  3401   Wed Aug 11 16:13:59 2010 JennaUpdateelogelog restartedThe elog crashed, so we restarted it again.   
  3400   Wed Aug 11 15:27:16 2010 JennaUpdateElectronicsRubidium clock phase noiseWe unsynched the clocks by unhooking the
1pps locking. I've added it to the plot of
the other measurements here, and we've divided
 08_11_Rb_withspec.pdf 
  3399   Wed Aug 11 13:28:44 2010 josephbUpdateCDSNew cdsIPCx parts, old part breaks modelsWhile working on a test stand at LLO, I've
discovered that there's a new update to the
Real Time Code Generator that breaks virtually
  
  3398   Wed Aug 11 12:58:56 2010 JennaUpdateElectronicsRubidium clock phase noiseI took some measurements of the clock this
morning, first without the box, then with
the box, then without the box again. All
 08_11_Rb_crazybox.pdf08_11_Rb_comparison.pdf 
  3397   Wed Aug 11 11:51:45 2010 Gopal UpdateWIKI-40M Update8.5.10 - 8.11.10 Weekly UpdateSummary of
this Week's Activities:
  
  3396   Wed Aug 11 02:44:37 2010 ZachUpdateelogelog restartedYou'll never guess what happened: the elog
crashed!
I restarted it with the script. Yay.
  
  3395   Tue Aug 10 22:40:55 2010 KojiSummaryPEMAccelerometer located on and below the PSL tableResult
of the accelerometer measurement
Introduction

We wanted to characterize
 PEM_100809.pdf 
  3394   Tue Aug 10 17:21:48 2010 steveUpdateGeneralPSL optical table is at 30" heightMike Gerfen, Koji and Steve,
 
Our old ( 6 x 10 x 1 ) ft Newport
 P1060586.JPGP1060583.JPGP1060591.JPGP1060593.JPGP1060597.JPG 
  3393   Tue Aug 10 16:55:38 2010 JennaUpdateElectronicsc1iovme restarted Alastair
and I restarted the c1iovme around the time
of my last elog entry (~3:20).
  
  3392   Tue Aug 10 15:23:35 2010 JennaUpdateElectronicsRubidium clock time constant[Jenna & Alastair]
We changed the locking time constant
on one of the Rubidium clocks using the RbMon
  
  3391   Tue Aug 10 05:56:07 2010 KojiUpdatePSLPSL Table Lifting PreparationWork
on Aug 9th
Steve, Jenne,
Koji, Alberto, Aidan, Jan, Sharmila, Katherine
From
 IMG_2686.jpgIMG_2691.jpgIMG_2692.jpgIMG_2711.jpg 
  3390   Tue Aug 10 01:05:17 2010 ZachUpdateelogelog restarted Elog was down. Restarted with the
script.
  
  3389   Mon Aug 9 21:50:50 2010 nancyUpdateIOOMode Cleaner ASC


   
        
            
  
  3388   Mon Aug 9 15:54:43 2010 KojiUpdateIOOMode Cleaner ASCThe WFS and QPD servos were working.
That was great.
Everything was fine except for the
  
  3387   Mon Aug 9 13:32:02 2010 nancyUpdateIOOMode Cleaner ASC E-log entry for
Friday - will attach more plots to this entry
 6x 
  3386   Mon Aug 9 12:46:24 2010 NancyUpdateIOOMode Cleaner WFS    
  3385   Sat Aug 7 21:57:56 2010 ranaSummaryDMFseisBLRMS restartedThe green xterm on op540m which is running
the seisBLRMS DMF got stuck somehow ~3 days
ago and lost its NDS connection. I closed
 Untitled.png 
  3384   Sat Aug 7 21:09:59 2010 DmassConfigurationComputer Scripts / ProgramseLog changesI made some changes to the elog on nodus:

    Made a backup of /cvs/cds/caltech/elog/elog-2.7.5/elogd.cfg
called elogd.cfg.bk.20100407 in the same
  
  3383   Sat Aug 7 11:07:44 2010 KojiConfigurationPSLMC kept locked / PMC control gain reduced to +13dBJenne asked us to keep th MC locked
and let the seismometers happy through this
weekend.
  
  3382   Sat Aug 7 10:47:38 2010 KojiSummaryelogelog restarted / source of the trouble eliminatedNancy
notified me that the elog crashed. It was
  
  3381   Fri Aug 6 20:00:03 2010 KojiUpdatePSLPSL preparation workPSL preparation work report
Aug 6th
10am-5pm: (Steve
 PSL_cable_map.pdf 
  3380   Fri Aug 6 19:46:59 2010 GopalUpdateOptic Stacks(Much Better Looking) Displacement-Displacment Transfer Functions


   
        
            
  
  3378   Fri Aug 6 17:47:36 2010 steveSummaryGeneralcranes load tested at 1998 lbs


   
        
            
 0.9ton.PDFP1060523.JPGP1060532.JPGP1060541.JPG 
  3377   Fri Aug 6 16:20:08 2010 ranaUpdateGeneralclocks still not locked fully - phase shifted I tried to get the clocks to be closer
to 90 deg for the relative phase by adding
some cable length to one of the lines, but
 Untitled.pdf 
  3376   Fri Aug 6 15:50:29 2010 GopalUpdateOptic Stacks(Much Better Looking) Displacement-Displacment Transfer FunctionsI reran
the FDA in COMSOL on the MC1/MC3 Stack and
produced the following Displacement-Displacement
 MC1_MC3_XTrans.pngMC1_MC3_YTrans.pngMC1_MC3_ZTrans.png 
  3375   Fri Aug 6 12:44:29 2010 KojiUpdateIOOMC data taking over the weekendQuestion:
Do you like to keep the WFS turned
on? 
  
  3374   Fri Aug 6 12:33:10 2010 KojiUpdateIOOMode Cleaner WFS


   
        
            
  
  3373   Fri Aug 6 12:22:04 2010 JenneUpdateIOOMC data taking over the weekendNancy has the Mode Cleaner for her work
for the night, and is going to leave the
MC happy, locked, autolocker on, WFS enabled,
  
  3372   Fri Aug 6 10:44:55 2010 nancy, kojiUpdateIOOMode Cleaner WFS

    
        
  
  3371   Fri Aug 6 08:09:15 2010 steveUpdatePSLPSL preparation work


   
        
            
  
  3370   Thu Aug 5 22:36:11 2010 KojiUpdatePSLPSL preparation workPSL preparation work

  
  3369   Thu Aug 5 17:59:23 2010 KojiUpdatePSLCable removal from the control room[Alberto, Kiwamu, and Koji]
We removed the BNC cables from the
control room. 
 IMG_2684.jpg 
  3368   Thu Aug 5 16:18:37 2010 AlastairUpdateGeneralclocks still not locked fully - hut removedThe rubidium clocks are still not quite
locked together, though it is clear that
the beat frequency has dropped a lot since
  
  3367   Thu Aug 5 13:05:53 2010 KojiUpdateIOOMode Cleaner WFSUpon Nancy's request, I checked the status
of the suspensions.
I found that the power strip of the
  
  3366   Thu Aug 5 11:48:52 2010 nancyUpdateIOOMode Cleaner WFS

    
        
  
  3365   Thu Aug 5 01:29:39 2010 nancyUpdateIOOMode Cleaner WFS 
I calculated the MC1&3 Vs WFS1&2
Output Matrix today from the above measurements
  
  3364   Thu Aug 5 00:17:41 2010 KojiUpdatePSLPSL preparation workWe start the work on the cables at around
the PSL table.
  
  3363   Wed Aug 4 20:58:22 2010 GopalUpdateWIKI-40M Update7.28.10 - 8.4.10 Weekly UpdateSummary
of this week's activities:
  
  3362   Wed Aug 4 20:15:07 2010 JenneUpdatePEMYay! Guralps work again!After much hassle, the Guralp cable from
the ADC Out of the breakout box to the ADC
is fixed, and 
  
  3361   Wed Aug 4 19:50:58 2010 ranaConfigurationElectronicsRubidium clocks too hot: hut removedAlastair found that the foam hut that he
and Jan put on top of the Rb clocks to temperature
stabilize them was too good of an insulator.
 beat.png 
  3360   Wed Aug 4 16:52:59 2010 Razib, AidanUpdatePhase CameraSideband power measurement (updated)Aidan and I made some attempt to measure
the power of the sidebands so that we can
calculate our expected signal strength.
 Setup_08_04_2010.jpgpower_40MHz.pngpower_25MHz.png 
  3358   Wed Aug 4 12:49:42 2010 nancyUpdateIOOMode Cleaner WFS

    
        
 6x 
  3357   Wed Aug 4 11:10:28 2010 nancyUpdateIOOMode Cleaner WFSYesterday, I started twiddling with the
Mode Cleaner at about 2 pm.
  
  3356   Wed Aug 4 03:01:56 2010 JenneUpdatePEMCatastrophic Cable Failures


   
        
            
  
  3355   Wed Aug 4 01:44:56 2010 KojiConfigurationPEMAccelerometer located on and below the PSL table[Jenne and Koji] 
In order to characterize the seismic vibration
 IMG_2675.jpgIMG_2678.jpgIMG_2682.jpg 
  3354   Tue Aug 3 11:50:16 2010 JenneUpdatePEMSeismometer Problem Tracked downAfter some cable swapping this morning,
I have determined which cable is bad. 
It's the Gur1 cable between the seismometer
  
  3353   Tue Aug 3 11:17:10 2010 kiwamuUpdateCDSDiagrams for Cables needed for CDS testCurrent Wiring Setup for the Suspension
Controls
 sus_wiring.pngsus_new_wiring.pngsus_missing_stuff.png 
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