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ID Date Author Type Category Subject Text Attachments
  7169   Tue Aug 14 04:32:49 2012 rana, yoichiUpdateLockingPOX signal sometimes looks very funny The alignment was way off.
We moved the PZT, the BS, and the x arm to
get it to lock. Along the way we noticed
 ITMX_1028974969.bmpETMXF_1028975007.bmpETMXT_1028975105.bmpAS_1028975166.bmp 
  7168   Tue Aug 14 00:42:40 2012 JenneUpdateLockingPOX signal sometimes looks very funnyI'm trying to lock / align the Xarm, and
POX 11 I looks funny sometimes.
I attach 2 screenshots so you can
 POX_13Aug2012_LSCdisabled_pox_is_normalish.pngPOX_13Aug2012_LSCenabled_pox_is_squareish_funny.png 
  7167   Mon Aug 13 23:06:08 2012 JenneUpdateSUSSimplant left onSimplant for ETMX was left on, so I didn't
have control of ETMX.  Not cool. 
  
  7166   Mon Aug 13 21:47:30 2012 YaakovUpdateSTACISTwo changes to STACIS noise budgetIn eLog 7148 (http://nodus.ligo.caltech.edu:8080/40m/7148),
Koji pointed out that the op-amp and SR560 noise values
 noise_budget_8-13.bmpnoise_budget_8-13.bmpnoise_budget_8-13.fig 
  7165   Mon Aug 13 20:12:29 2012 jamieUpdateCDSc1sup model moved to c1lsc machineI moved the c1sup simplant model to the
c1lsc machine, where there was one remaining
available processor.  This requires
  
  7164   Mon Aug 13 19:29:10 2012 ManasaSummary Ringdown measurementsI tried to make ringdown measurements at
the IMC using the DC falling edge as the
trigger. Input to the MC was switched off
  
  7163   Mon Aug 13 18:00:30 2012 jamieUpdateGenerallarger optical tables at the ends

    

       
            
  
  7162   Mon Aug 13 17:31:19 2012 jamieUpdateCDSmysterious stuck test points on c1spx model

    

       
            
  
  7161   Mon Aug 13 16:58:07 2012 jamieUpdateCDSmysterious stuck test points on c1spx modelWe were not able to open up any test points
in the revived c1spx model (dcuid 61).
Looking at the GDS_TP screen we found
  
  7160   Mon Aug 13 15:31:09 2012 steveUpdateGenerallarger optical tables at the endsI'm proposing larger
optical tables at the ends to avoid the
existing overcrowding. This would allow the
 ETMYtable.jpgETMY4X3.jpg 
  7159   Mon Aug 13 12:17:41 2012 ManasaConfigurationIOOPD from AP table removedThe PD (pda255) at the AP table, close
to the MC refl , which Steve mentioned to
be not in use, has been removed from the
  
  7158   Mon Aug 13 09:59:05 2012 KojiUpdateGeneralMysterious banging on emergency doorYou mean 5000?


  
  7157   Mon Aug 13 01:33:55 2012 DenUpdateGeneralMysterious banging on emergency door

    

       
            
  
  7156   Mon Aug 13 00:33:06 2012 MashaUpdateGeneralMysterious banging on emergency door[Masha, Sasha]
Sorry to spam the e-log, but did
someone come knock loudly on the emergency
  
  7155   Sun Aug 12 10:34:45 2012 KojiUpdateSAFETYexit door left unlockedI unlocked the door on Tuesday in order
to move the red cart. 
After that I confirmed that the door
  
  7154   Sun Aug 12 01:21:26 2012 steveUpdateSAFETYexit door left unlockedCaltech security called me at 1am Sunday.
 Control room emergency
  
  7153   Sat Aug 11 18:57:07 2012 DenUpdatePEMseismometer locationSTS-2 - end of X arm
GUR 2 - isolation box
TRILLIUM - 1Y3 (DC power supply uses
  
  7152   Sat Aug 11 18:05:49 2012 SashaUpdateSimulationsSim_Plant Working!

    

       
            
 seismic_noise1.jpg 
  7151   Sat Aug 11 01:10:26 2012 SashaUpdateSimulationsSim_Plant Working!Sim_Plant going okay. Adding seismic noise
tomorrow - we'll see what happens. The gain
is still semi-off, but I know how to fix
 Plant_sen.jpg 
  7150   Fri Aug 10 21:37:15 2012 DenUpdatePEMgur, sts noise Using Guralp, STS-2 and Trillium
I compared Gur and STS-2 self-noise assuming
that Trillium noise is not worse then STS-2
 gur_sts_noise.png 
  7149   Fri Aug 10 19:49:11 2012 EricSummaryLockingMichelson Locking Procedure and Measurements

  
  7148   Fri Aug 10 18:11:55 2012 YaakovUpdateSTACISCorrected noise budget, plan for external actuationI hope you're not all tired of the STACIs
noise budgets, because I have another one!
Here, the main difference is my modeling
 6x 
  7147   Fri Aug 10 17:38:29 2012 DenUpdatePEMclassify seismic c code

    

       
            
  
  7146   Fri Aug 10 17:17:41 2012 Alex Masha DenUpdatePEMclassify seismic c codeDen and I installed a module in the c1pem
model which has a feedforward neural network
to classify seismic disturbance (10 means
  
  7145   Fri Aug 10 16:39:44 2012 EricSummaryLockingMichelson LockingI'm working on locking the Michelson now
in order to put an excitation on one of the
  
  7144   Fri Aug 10 15:05:52 2012 ManasaConfigurationIOOMC trans optics configured

    

       
            
  
  7143   Fri Aug 10 11:08:26 2012 jamieUpdateComputersFE Status

    

       
            
  
  7142   Fri Aug 10 11:05:33 2012 jamieConfigurationIOOMC trans optics configured

    

       
            
  
  7141   Fri Aug 10 11:00:52 2012 SashaUpdateSimulationsMessing with ETMXI've been trying to get the simPlant model
to work, and my main method of testing is
switching between the real ETMX and the simulated
  
  7140   Fri Aug 10 09:54:51 2012 ManasaConfigurationIOOMC trans optics configured

    

       
            
  
  7139   Fri Aug 10 09:51:51 2012 EricSummaryLockingYARM Locking and MeasurementsI forgot to post this last night, but I
locked the YARM again yesterday and misaligned
the other optics. I took measurements on
  
  7138   Fri Aug 10 09:47:19 2012 MashaUpdateComputersFE StatusThe c1lsc and c1sus screens are red in
the front-end status. I restarted the frame
builder, and hit the "global diag reset"
  
  7137   Thu Aug 9 23:50:09 2012 JenneUpdateASSASS matrix measured, first ASS testKoji pointed out that I was being silly,
and rather than actually misaligning the
optics (by, say, changing their IFO Align
  
  7136   Thu Aug 9 12:55:15 2012 ZachUpdateelogelog was being a pain in the ass; I restarted itThe elog was not responding. I attempted
to restart it by running .../start-elog.csh,
but this didn't work (even after the usual
  
  7135   Thu Aug 9 12:31:36 2012 JenneUpdateASSASS rebuilt againI was (in between Eric's measurements) driving
the YARM ASS dithers, and noticed that instead
of driving ITMY PIT, I was driving ITMX PIT.
  
  7134   Thu Aug 9 10:09:32 2012 EricSummaryLockingYARM Locking and Calibration

    

       
            
 cal_swept_sine3_magnitude.pdfcal_swept_sine3_phase.pdfcal_swept_sine3_coherence.pdf 
  7133   Thu Aug 9 07:24:58 2012 SashaUpdateSimulationsAll c1spx screens working

    

       
            
 Screenshot.pngScreenshot-1.png 
  7132   Thu Aug 9 04:26:51 2012 SashaUpdateSimulationsAll c1spx screens workingAs the subject states, all screens are working
(including the noise screens), so
  
  7131   Thu Aug 9 01:26:03 2012 KojiUpdateASSTrouble measuring sensing matrixThat's a good point, but I suspect
that you end up with the in-phase (0deg)
as the response of the IFO is immediate compared
  
  7130   Thu Aug 9 00:35:53 2012 JenneSummaryLockingYARM Locking and Calibration

    

       
            
  
  7129   Thu Aug 9 00:23:11 2012 JenneUpdateASSTrouble measuring sensing matrix

    

       
            
  
  7128   Thu Aug 9 00:14:02 2012 EricSummaryLockingYARM Locking and CalibrationToday I spent time locking the YARM
in order to calibrate the arm cavity. Here's
 cal_swept_sine3_tfmagcal_swept_sine3_tfphcal_swept_sine3_cohsensing_func_model.png 
  7127   Wed Aug 8 22:17:43 2012 ManasaConfigurationIOOMC trans optics configured

    

       
            
  
  7126   Wed Aug 8 22:12:30 2012 ranaConfigurationIOOMC trans optics configured  The PDA255   
  7125   Wed Aug 8 20:51:56 2012 ManasaUpdate40m UpgradingOptical layout updated

    

       
            
  
  7124   Wed Aug 8 20:50:39 2012 KojiUpdateASSTrouble measuring sensing matrixFrom the log, I couldn't understand what
has been done.
The procedure we should perform is
  
  7123   Wed Aug 8 20:34:29 2012 JenneUpdateASSTrouble measuring sensing matrixI turned on the ASS, without closing the
loops, to try to measure the sensing matrix. 
The Yarm was locked 
  
  7122   Wed Aug 8 19:54:06 2012 ManasaConfigurationIOOMC trans optics configuredJan and I wanted to measure the ringdown
at the IMC. Since the QPD at the MC trans
is not fast enough for ringdown measurements,
 Pic1.png 
  7121   Wed Aug 8 18:01:58 2012 JenneUpdateIOOMC autolocker threshold changedJan and Manasa are going to elog about
their work later, but it involved putting
a BS/window/some kind of pick off in front
  
  7120   Wed Aug 8 13:37:46 2012 KojiUpdateComputer Scripts / ProgramsWeek 8/Summary Pages updateHey, the pages got significantly nicer
than before. I will continue to give you
comments if I find anything.
  
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