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ID Date Author Type Category Subject Text Attachments
  9768   Mon Mar 31 21:23:30 2014 GabrieleSummaryLSCMICH sensing oddities in REFL 3F

    

       
            
  
  9767   Mon Mar 31 17:47:57 2014 ericqSummaryLSCMICH sensing oddities in REFL 3FLast week, while I had the PRMI locked
on REFL33, I did some poking around with
mirror excitation to RFPD quadrature transfer
 REFL_33_traj.pdfREFL_165_traj.pdf 
  9766   Mon Mar 31 13:26:23 2014 manasaUpdateLSCLSC model modifiedI have included Yarm CESAR to the LSC model.
It was just a copy paste of the Xarm CESAR.
Since we are now meditating about implementing
  
  9765   Mon Mar 31 13:15:55 2014 manasaSummaryLSCAlignment update

    

       
            
  
  9764   Mon Mar 31 11:34:00 2014 manasaSummaryIOOMC2 moved

    

       
            
  
  9763   Mon Mar 31 08:11:00 2014 SteveUpdateSUSrecovery from earthquakes

    

       
            
 local5.1eq.pngEQ4.4-5.1-3.3-16days.png 
  9762   Sat Mar 29 00:11:39 2014 KojiConfigurationGeneralNTP setting on nodusFB: /etc/ntp.conf was updated as
below such that it refers nodus and also
caltech server when nodus is not available
  
  9761   Fri Mar 28 23:28:13 2014 KojiConfigurationGeneralNTP setting on nodus[Koji Rana]
We are looking at NTP settings. I
looked at nodus.
  
  9760   Fri Mar 28 22:10:00 2014 rana, kojiUpdateSUSrecovery from * EQ Southeast of LA around 45 minutes
ago. Callum and I felt it.
 Screenshot.png 
  9759   Fri Mar 28 20:23:02 2014 ranaSummaryIOOMC2 movedI aligned MC2 suspension by 0.01 in pit
and yaw to align the MC better to the PSL
beam. Then I turned the WFS back on. The
  
  9758   Fri Mar 28 17:22:55 2014 KojiSummaryLSCPRMIsb locked with REFL165I&Q againWhile I'm looking at the PRM ASC servo
model, I tried to use the current servo
filters for the ASC 
  
  9757   Fri Mar 28 16:26:20 2014 steveUpdateVACRGA scan after power failure

    

       
            
 afterPowerFailure.png 
  9756   Thu Mar 27 10:34:39 2014 ericqUpdateGeneralRecovery

    

       
            
  
  9755   Wed Mar 26 22:22:43 2014 ManasaUpdateGeneralRecoveryThe following
that went unnoticed from yesterday were recovered
today:
  
  9754   Wed Mar 26 21:51:42 2014 ericqSummaryLSCPRMIsb locked with REFL165I&Q againIncidentally, while messing around with
transfer functions and sensing matrix elements
this evening, I was able to sideband lock
  
  9753   Wed Mar 26 14:54:32 2014 KojiSummaryLSCPRMIsb locked with REFL165I&Q again[Manasa, Eric, Koji]
PRMIsb
was locked with REFL165I&Q.
  
  9752   Wed Mar 26 11:30:07 2014 KojiUpdateGeneralPower FailureRecovery work: now arms are locking as usual
- FB is failing very frequently.
  
  9751   Wed Mar 26 11:16:59 2014 ericqSummaryLSCComposite Error Signal for ARms (3)Extending the previous model, I've closed
a rudimentary CESAR loop in simulink. Error
signals with varying noise levels are combined
 simlink.pdfsimulatedCESARLock.pdf 
  9750   Tue Mar 25 16:11:24 2014 KojiUpdateGeneralPower FailureAs far as I know the system is running
as usual. I had the IMC locked and one of
the arm flashing.
  
  9749   Tue Mar 25 14:52:57 2014 steveUpdateVACvacuum is recovered Out
gassing plus leak rate   0.15 
 17hrsNoPumping.png 
  9748   Mon Mar 24 22:13:37 2014 steveUpdateGeneralPower Failure

    

       
            
 poweroutage.png 
  9747   Mon Mar 24 21:36:28 2014 KojiUpdateGeneralPower FailureI'm checking the status from home.
P1 is 8e-4 torr
nodus did not feel the power outage
  
  9746   Mon Mar 24 19:42:12 2014 CharlesFrogsVACPower Failure The 40m experienced a building-wide
power failure for ~30 seconds at ~7:38 pm
today.
  
  9745   Mon Mar 24 10:41:46 2014 SteveUpdateVACRGA scan at day 50 
 
 pd77m50dRGA.png 
  9744   Sun Mar 23 14:20:07 2014 ranaHowToLSCBLRMS screens We should make screens like this
for the LSC signals, errors, ALS, etc.
 blrms.png 
  9743   Fri Mar 21 14:59:44 2014 steveUpdatePEMcontroling dustPlease take a look at the table top with
the flashlight before
 IMG_0044.JPG 
  9742   Fri Mar 21 01:54:32 2014 ericqUpdateLSCSome early CARM modeling I've been getting a simulation going
with the eventual goal of simulating CESAR-type
signals for CARM. So for I've only been using
 7x 
  9741   Thu Mar 20 11:16:16 2014 SteveUpdateGeneralnew projector 
[ Manasa, Ericq and Steve ]
 Vivitek
  
  9740   Wed Mar 19 21:37:45 2014 manasaSummaryLSCAttempt to lock PRMIsb with REFL165I&QI tried to
repeat Koji's PRMI lock using REFL165I/Q.
I was not able to lock PRMI stably. All I
  
  9739   Tue Mar 18 21:19:22 2014 KojiSummaryIOOMC spot positions checkedMC spot sposition script was ran
/opt/rtcds/caltech/c1/scripts/ASS/MC/mcassMCdecenter
 MCASS.png 
  9738   Tue Mar 18 18:05:57 2014 SteveUpdateSUSETMX osem UR 
  UR osem IR shield glass is
pushed back. It came out of its clip holder.
 ETMX_URcollapsing.jpgETMX_outoffocus.JPGURisFREE.png 
  9737   Tue Mar 18 08:31:37 2014 SteveUpdateSUS4.4M local earthquake & its miracle

    

       
            
 miracel.pngETMX_LR.JPGETMX_LR-UL.JPGETMX_UL-LL-S-IRshield.jpg 
  9736   Tue Mar 18 00:51:02 2014 JenneUpdateSUS4.4M local earthquake 
 I am really, really happy to
hear that it was just a sticking situation. 
  
  9735   Mon Mar 17 21:55:36 2014 KojiUpdateSUS4.4M local earthquakeIt was little bit surprising to me but
Rana's
professorial rock'n roll excitation released
  
  9734   Mon Mar 17 20:44:42 2014 ranaUpdateSUS4.4M local earthquake    
  9733   Mon Mar 17 20:14:34 2014 KojiSummaryGeneralIFO recovery / confirmed ETMX in troubleI tried to take the photos of the magnets
from outside.  So far most suspicious was
LL. 
 ETMX_UL.JPGETMX_UR.JPGETMX_LR.JPGETMX_LL.JPG 
  9732   Mon Mar 17 12:31:58 2014 manasaUpdateCDSfb timing was offOff again. Restarted ntp on fb.   
  9731   Mon Mar 17 12:02:55 2014 KojiSummaryGeneralIFO recovery / confirmed ETMX in troubleI
confirmed that we need to vent the chambers.
 MCspots.png 
  9730   Mon Mar 17 10:50:58 2014 steveUpdatesafety2014 annual crane certification

    

       
            
 2014craneCert.jpg 
  9729   Mon Mar 17 09:27:05 2014 SteveUpdateSUS4.4M local earthquake It looks like that ETMX have 
2 sticky magnets.
 
 4.4M-Encino.png3.9-4.4Meq.pngEQdamage4.4.png 
  9728   Fri Mar 14 12:18:55 2014 KojiUpdateLSCComposite Error Signal for ARms (9)Asymptotic cooling of the mirror motion
with CESAR was tested.
With ALS and the full control bandwidth
 asymptotic_cooling.pdf 
  9727   Fri Mar 14 10:31:10 2014 jamieUpdateGreen LockingALS Slow servo settings

    

       
            
  
  9726   Fri Mar 14 09:44:34 2014 SteveUpdateLSCmorning lock   2hrsMorningLock.png 
  9725   Thu Mar 13 16:05:48 2014 steveUpdatesafetysafety audit 2014

    

       
            
 T1400198-v1-CIT-LIGO_Labs_Annual_Safety_Audit_2014.pdf 
  9724   Thu Mar 13 01:18:00 2014 JenneUpdateLSCComposite Error Signal for ARms (8)[Jenne, EricQ]
As Koji suggested in his email this
afternoon, we looked at how much actuator
 7x 
  9723   Wed Mar 12 08:40:42 2014 SteveUpdateVACRGA scan at day 35 
 
 pd77m35d.png 
  9722   Tue Mar 11 21:38:43 2014 manasaUpdateComputer Scripts / ProgramsIFO configure scripts in burt modifiedI have modified the IFOconfigure scripts
and the corresponding .req files for the
  
  9721   Tue Mar 11 19:38:26 2014 manasaUpdateGreen LockingALS Slow servo settings

    

       
            
  
  9720   Tue Mar 11 19:07:24 2014 ericqUpdateElectronicsHigh gain Trans PD electronics changeSpeaking of the whitening board, I had
neglected to post details showing the the
whitening was at least having a positive
 SQRTINVwhitening.pdfsqrtinvWhitening.zip 
  9719   Tue Mar 11 18:34:11 2014 JenneUpdateLSCComposite Error Signal for ARms (7)[Nic, Jenne, EricQ, and Koji]
We
have used CESAR successfully to bring the
 spectra-ungarble.pdfScreenshot-1.pngScanFromOffToOnResonance.pdfScanThroughResonance.pdf 
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