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  40m Log, Page 279 of 354  Not logged in ELOG logo
ID Date Author Type Category Subjectup Text Attachments
  6711   Tue May 29 21:50:21 2012 JenneUpdateLockingYarm error spectraThe ~16Hz bounce mode of some optic is
showing up in the Yarm error signal. 
MC is kind of 'windy' looking, so
 LSC_POY_11_I_ERR_29May2012.pdf 
  6714   Wed May 30 13:24:08 2012 JenneUpdateLockingYarm error spectra

    

       
            
  
  6279   Tue Feb 14 15:52:11 2012 JenneUpdateAuxiliary lockingYarm fiber returned to ATF[Frank, Jenne]
We extracted the fiber that Suresh
and Sonali laid over the summer, for the
  
  5051   Thu Jul 28 02:33:04 2011 JenneUpdateLockingYarm flashing, but not yet lockedBecause I'm too lazy to write a cohenrent
elog right now, here's my notes that I wrote
while working tonight:
  
  7030   Wed Jul 25 16:31:01 2012 JenneUpdateLSCYarm green locking to arm - PDH box saturating

    

       
            
  
  8825   Thu Jul 11 03:14:19 2013 JenneUpdateLSCYarm held nicely on IR resonance with ALS, PRMI+arm attempt[Annalisa, Jenne, Nic]
After having troubles with the Xarm
earlier (maybe Manasa can write/say something
 Yarm_onIRresonance_noPRMIyet_POYcalibrated.pdf 
  8826   Thu Jul 11 07:34:42 2013 manasaUpdateLSCYarm held nicely on IR resonance with ALS, PRMI+arm attempt

    

       
            
  
  14403   Wed Jan 16 16:25:25 2019 gautamUpdateSUSYarm locked[chub, gautam]

Summary:

Y arm was locked at low power in
 Yarm_locked.png 
  7723   Mon Nov 19 15:12:52 2012 JenneUpdateAlignmentYarm locked IR

    

       
            
  
  9888   Thu May 1 03:15:03 2014 JenneUpdateLSCYarm locking with CM board[Rana, EricQ, Jenne]
We locked the Yarm by using the CM
board this evening. 
 Yarm_CMlocking_spectra_30Apr2014_copy.pdfYarm_CMlocking_TFs_30Apr2014_copy.pdf 
  9889   Thu May 1 03:23:07 2014 ericqUpdateLSCYarm locking with CM board

    

       
            
  
  9893   Thu May 1 16:41:35 2014 ericqUpdateLSCYarm locking with CM board (Edited this post; Forgot
to account for the FMs other than 4 and 5...
it now agrees better!)
 AOsignsSame.pdfAOsignsOpposite.pdfloopModeling.m 
  9894   Thu May 1 17:00:05 2014 ranaUpdateLSCYarm locking with CM board I think that's about halfway there.
Since this needs to be a precise comparison,
we cannot use so many approximations.
  
  7073   Wed Aug 1 18:20:58 2012 JamieUpdateLSCYarm recovered[Jenne, Jamie]
We recovered lock and alignment of
the Y arm.  TRY_OUT is now at ~0.9,
  
  14235   Sun Oct 7 16:51:03 2018 gautamConfigurationLSCYarm triggering changedTo facilitate Yuki's alignment of the
EY green beam into the Yarm cavity, I have changed
  
  17471   Thu Feb 16 23:54:11 2023 AlexUpdateDaily ProgressYaw and Pitch Calibration constants for ETMY op-levThis work was done by Ancal and I. 

To recallibrate the op-lev for
ETMY, a python script was first written to
 Image[2].jpegImage[3].jpegCapture.PNG.png 
  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 
  
  8291   Thu Mar 14 04:20:54 2013 JenneUpdateGreen LockingYbeat attemptI dedicated my evening to trying to get
the Ygreen beatnote (the idea being to then
get the Xgreen beatnote).
  
  15122   Wed Jan 15 08:55:14 2020 gautamUpdateCDSYearly DAQD fixSummary:

Every new year (on Dec 31 or Jan
1), all of the realtime models will report
 DCerrors_fixed.png 
  16546   Thu Jan 6 12:52:49 2022 AnchalUpdateCDSYearly DAQD fix 2022!Just as predicted, all realtime models
reported "0x4000" error. Read the
parent post for more details. I fixed this
  
  16547   Thu Jan 6 13:54:28 2022 KojiUpdateCDSYearly DAQD fix 2022!Just
restarting all the c1sus2 models fixed the
issue. (Attachment 1)
 Screenshot_2022-01-06_13-57-40.png 
  17378   Tue Jan 3 11:32:32 2023 AnchalUpdateCDSYearly DAQD fix 2023, did not work :(Every year some changes need to be done
manually in a driver c code file for daqd
to work. The gpstime offset needs to be changed
  
  17379   Tue Jan 3 12:10:46 2023 JamieUpdateCDSYearly DAQD fix 2023, did not work :(This
whole procedure is no longer needed after
the CDS upgrade.  We don't do things
  
  10799   Mon Dec 15 22:30:50 2014 JenneUpdateElectronicsYend QPD modifiedDetails later - empty entry for a reply.
Short story - Yend is now same as
Xend filters-wise and lack of gain sliders
  
  10801   Mon Dec 15 22:45:59 2014 JenneUpdateElectronicsYend QPD modified 
 [Jenne, Rana, Diego]
We did some test on the modified
 QPD_Ytrans_oscillating_15Dec2014.pdfQPD_IOPchannels_Ytrans_oscillating_15Dec2014.pdf 
  9845   Thu Apr 24 00:11:35 2014 JenneUpdateLSCYend shutter back.

    

       
            
  
  8437   Wed Apr 10 15:49:22 2013 AnnalisaConfigurationCOMSOL TipsYend table eigenfrequency simulation with COMSOL I made a Simulation with COMSOL for
the Yend table. Mainly, I tried to see how
the lower eigenmode changes with the number
 Pics_end_table.pdf 
  8302   Fri Mar 15 16:46:52 2013 JenneBureaucracyAuxiliary lockingYend table upgrade - fast track?In light of the Yend auxiliary laser's
ill health, I think we should reconsider
the possibility of changing out the Yend
  
  8304   Mon Mar 18 12:23:25 2013 JenneBureaucracyAuxiliary lockingYend table upgrade - go fetch NPRO from ATFZach has just replied, and said that we
should feel free to take
  
  8305   Mon Mar 18 12:35:29 2013 AnnalisaBureaucracyAuxiliary lockingYend table upgrade - go fetch NPRO from ATF

    

       
            
  
  8306   Mon Mar 18 13:10:19 2013 KojiBureaucracyAuxiliary lockingYend table upgrade - go fetch NPRO from ATF1) Annalisa is going to start  working
on mode profiling and beat note search for
the old MOPA NPRO.
  
  8308   Mon Mar 18 20:13:18 2013 AnnalisaBureaucracyAuxiliary lockingYend table upgrade - go fetch NPRO from ATF

    

       
            
  
  7912   Thu Jan 17 11:01:19 2013 JenneUpdateAlignmentYesterday's alignment work[Jamie, Jenne, Manasa]
Yesterday's goal was to get the input
beam centered on the PRM, the BS and ETMY
  
  15720   Wed Dec 9 16:22:57 2020 gautamUpdateSUSYet another round of Sat. Box. switcharooAs discussed at the meeting, I decided
to effect a satellite box swap for the misbehaving
MC1 unit. I looked back at the summary pages
 WFS2.pngWFS_lineNoise.pngWFSchar.pdf 
  10574   Tue Oct 7 00:18:12 2014 JenneUpdateLSCYgreen PSL alignment, ETMX strain reliefNo exciting progress today.  I did
PSL green alignment for the Yarm, although
I now think that the Xarm green needs realigning
  
  493   Fri May 23 08:24:24 2008 ranaAoGTreasureYoichi Aso has arrived !   Colossus_back_(800_x_600)-thumb.jpg 
  505   Thu May 29 16:49:49 2008 steveBureaucracyPhotosYoichi has arrivedYoichi had his first 40m meeting. We welcomed
him and Tobin, who is visiting, by sugar
napoleons that 
 yoichi.pngbobsn.png 
  523   Fri Jun 6 15:56:00 2008 steveBureaucracySAFETYYoichi received safety trainingYoichi Aso received 40m specific safety training.   
  1618   Thu May 21 18:21:57 2009 ranaSummaryTreasureYoichi's words    
  3637   Fri Oct 1 16:46:20 2010 steveBureaucracySAFETYYuta received 40m-101-safety trainingOur visiting graduate student Yuta Michimura
received 40m specific basic safety training
today.
  
  5052   Thu Jul 28 13:51:00 2011 SonaliUpdateGreen LockingZHL-32A-S.Initially I was using RFPD-1611to get the
IR beat frequency. Its gain was not very
high, so I was getting a very low signal
  
  15031   Fri Nov 15 18:59:08 2019 ranaUpdateComputersZITA: started upgrade from Ubuntu 14 LTS to 18 LTSand so it begins...until this is finished
I have turned off the projector and moved
the striptools to the big TV (time to look
  
  15033   Mon Nov 18 16:32:15 2019 gautamUpdateComputersZITA: started upgrade from Ubuntu 14 LTS to 18 LTSthe upgrade seems to have been successfully
executed - the machine was restarted at ~430pm
local time. Projector remains off and diagnostic
  
  16156   Mon May 24 10:19:54 2021 PacoUpdateGeneralZita IOO stripUpdated IOO.strip on Zita to show WFS2
pitch and yaw trends (C1:IOO-WFS2_PIY_OUT16
 Screenshot_from_2021-05-24_18-09-37.png24and25_05_2021_PEM_BS_10_30.png 
  14265   Fri Nov 2 09:47:57 2018 SteveMetaphysicsTreasureZojirushi is dead     It took at least
ten years to rust away. 
 DSC01773.JPGzoji.JPG 
  14271   Mon Nov 5 15:55:39 2018 SteveMetaphysicsTreasureZojirushi is deadWe
have no coffee machine.

We
 zoji.JPG 
  14272   Tue Nov 6 09:45:32 2018 aaronMetaphysicsTreasureZojirushi is deadNew
all organic machine.
  
  15561   Sun Sep 6 14:17:18 2020 JonUpdateEquipment loanZurich Instruments analyzerOn Friday, I grabbed the Zurich Instruments
HF2LI lock-in amplifier and brought
it home. As time permits, I will work towards
  
  16226   Fri Jun 25 19:14:45 2021 JonUpdateEquipment loanZurich Instruments analyzerI returned the Zurich Instruments analyzer
I borrowed some time ago to test out at home.
It is sitting on first table across from
 ZI.JPG 
  11033   Sun Feb 15 16:20:44 2015 KojiSummaryLSC[ELOG LIST] 3f modulation cancellationSummary
of the ELOGS

3f
modulation cancellation theory 
  
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