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  40m Log, Page 123 of 341  Not logged in ELOG logo
ID Dateup Author Type Category Subject Text Attachments
  6144   Wed Dec 21 16:55:30 2011 kiwamuUpdateGreen LockingPower Recycled Single Arm I did some brief parameter checks
for the power-recycled single arm which I
have done yesterday.
The
  
  6145   Thu Dec 22 19:15:22 2011 kiwamuUpdateGreen Lockingrearrangement of PSL green optics As
planed (#6143
  
  6146   Thu Dec 22 20:49:33 2011 KojiUpdateIOOLimitter activated for WFS servosI set the limitters of the MC WFS servos
not to inject the feedback more than 2000.
The residual of the WFS shakes the
  
  6147   Fri Dec 23 01:07:41 2011 kiwamuUpdateGreen Lockingrearrangement of PSL green optics part IIAfter
I did a fine alignment of the X green beam
path on the PSL table, the X arm beat-note
 newLayout.png 
  6148   Fri Dec 23 15:55:12 2011 ranaSummaryComputer Scripts / ProgramsCONLOG: not working since Oct 1Often people say "I   
  6149   Mon Dec 26 12:04:41 2011 kiwamuUpdateCDSc1gcy.ini hand editedI have edited c1scx.ini by hand in order
to acquire some green locking related channels.
Somehow
  
  6150   Mon Dec 26 14:01:45 2011 kiwamuUpdateLSCmultiple-LOCKIN newly addedThe multiple
LOCKIN module has been newly added on the
 multiple-lockin.png 
  6151   Tue Dec 27 16:56:15 2011 kiwamuUpdateLSCScmitt trigger installedThe old
trigger system has been replaced by Schmitt
 trigger_time_series.pngtrig_mat.pngmodel_trigger_edit.png 
  6152   Tue Dec 27 22:17:56 2011 kiwamuUpdateLSCmultiple-LOCKIN new screensSome
new screens have been made for the new multiple-LOCKIN
system running on the LSC realtime controller.
 Untitled.png 
  6153   Tue Dec 27 23:03:56 2011 kiwamuUpdatePSLPMC realignedI have realigned the steering mirrors for
PMC because the transmitted light had been
at ~ 0.741
  
  6154   Wed Dec 28 14:13:16 2011 kiwamuUpdateGreen LockingALS feedback on MC2I
added an ALS feedback path on the MC2 suspension
and this path will enable us to stabilise
 MC2_ALS.png 
  6155   Fri Dec 30 02:16:48 2011 kiwamuUpdateGreen LockingYarm ALS : high frequency noise reducedThe
high frequency noise, which has been a dominant
noise above 30 Hz in the Y arm ALS (
 Yarm_ALS_2011Dec29.png 
  6156   Fri Dec 30 22:05:16 2011 kiwamuUpdateLSCpower normalization in LSCNow a power
normalization is doable for the LSC error
 POW_NORM_MTRX.png 
  6157   Tue Jan 3 15:45:04 2012 JenneUpdateComputersFB?Is there a reason the framebuilder status
light is red for all the front ends?
Also, I reenabled PRM watchdog.
  
  6158   Tue Jan 3 15:48:39 2012 kiwamuUpdateLSCpower normalization in LSCIt
turned out that the power normalization need
a modification.
  
  6159   Tue Jan 3 15:49:27 2012 JamieUpdateComputerspossible front-end timing issue

    

       
            
  
  6160   Tue Jan 3 17:25:27 2012 KojiUpdatePSLFound the laser was offI found the PSL laser has been off for
four hours. Nobody seemed to know why.
I just turned it on and it is now
  
  6161   Tue Jan 3 17:46:38 2012 Updated Stewart platform design requirementsUpdateGeneralUpdated design requirements for a Stewart platformI updated the design requirements for the
Stewart platform.  I weighed the unloaded
"dirty" SOS that was sitting on
 stewart.pdf 
  6162   Tue Jan 3 18:40:08 2012 AidanSummaryComputer Scripts / Programsmedm directory clean-up I moved the following old and obsolete
MEDM directories to an archive /cvs/cds/rtcds/caltech/c1/medm

    c1vga
    c1vgl
  
  6163   Tue Jan 3 20:42:05 2012 Leo SingerUpdateGeneralActuators for Stewart platform I checked on the two single-axis
shakers that are present at the 40m that
Steve pointed out:
  
  6164   Wed Jan 4 00:43:06 2012 kiwamuUpdateIOOMC became flakyI
don't know what exactly is going on, but
MC became flaky and it's been frequently
  
  6165   Wed Jan 4 02:43:40 2012 ranaUpdateGeneralActuators for Stewart platform

    

       
            
  
  6166   Wed Jan 4 03:03:24 2012 kiwamuUpdateLSClocking activity tonight and beyondLast night and tonight, I was doing
a kind of rehabilitation -- locking PRMI
and DRMI with the new trigger system.
  
  6167   Wed Jan 4 05:02:58 2012 kiwamuUpdateLSCSidebands measurement at POPJust
a quick report: 
I did
 SB_DRMI.png 
  6168   Wed Jan 4 09:06:50 2012 steveUpdateComputerspossible front-end timing issue


   
        
            
 rtntstat.png 
  6169   Wed Jan 4 11:47:08 2012 JamieSummaryComputer Scripts / Programsmedm directory clean-up


   
        
            
  
  6170   Wed Jan 4 16:22:30 2012 kiwamuUpdateLSCpower normalization in LSC : modification doneThe
dynamic power normalization system has been
modified such that the normalization happen
 pow_norm.png 
  6171   Wed Jan 4 16:40:52 2012 JamieUpdateComputersfront-end fb communication restoredCommunication between the front end models
and the framebuilder has been restored. 
I'm not sure exactly what the issue was,
  
  6172   Thu Jan 5 09:08:48 2012 steveUpdateGeneralframebuilder is backDataviewer is recovered after heavy new
year party.
 dataviewerisback.png 
  6173   Thu Jan 5 09:59:27 2012 JamieUpdateCDSRTS/RCG/DAQ UPGRADE TO COMMENCERTS/RCG/DAQ UPGRADE
TO COMMENCE
I will be attempting
(again) to upgrade the RTS, including the
  
  6174   Thu Jan 5 20:40:21 2012 JamieUpdateCDSRTS upgrade aborted; restored to previous settings; fb symmetricom card failing?After running into more problems with the
upgrade, I eventually decided to abort todays
upgrade attempt, and revert back to where
  
  6175   Fri Jan 6 01:00:56 2012 kiwamuUpdateCDSc1scx out of syncBoth
the c1scx and its IOP realtime processes
became out of sync.
  
  6176   Fri Jan 6 11:49:13 2012 JamieUpdateCDSframebuilder taken offline to diagnose problem with symmetricom timing cardAlex and I have taken the framebuilder
offline to try to see what's wrong with the
symmetricom card.  We have removed the
  
  6177   Fri Jan 6 14:31:54 2012 JamieUpdateCDSframebuilder back online, using NTP time syncronizationThe framebuilder is back online now, minus
it's symmetricom GPS card.  The card
seems to have failed entirely, and was not
  
  6178   Fri Jan 6 19:17:07 2012 Max De JongUpdateGeneralMounted projectorI mounted the new projector to the pipe
where the old projector was attached. The
mounting hardware wasn't designed for attaching
  
  6179   Fri Jan 6 20:10:48 2012 ranaUpdateCDSframebuilder back online, using NTP time syncronization 
  
  6180   Mon Jan 9 08:47:35 2012 steveUpdateSUSETMX damping restoredETMX sus damping restored   
  6181   Mon Jan 9 13:19:09 2012 kiwamuUpdateSUSETMX damping restoredNo
we can't do that because the c1scx model
is not working properly.
  
  6182   Mon Jan 9 23:52:15 2012 kiwamuUpdateCDSSUS channels not accessible from dataviewer[John / Kiwamu]
 We
found that some of the suspensions channels
  
  6183   Tue Jan 10 00:09:33 2012 kiwamuUpdateLSCspike hunting in REFL33[John / Kiwamu]
 We
tried to figure out what is causing spikes
  
  6184   Tue Jan 10 09:17:23 2012 steveUpdatePhotosstrawman's visiters   P1080491.JPGP1080492.JPG 
  6185   Wed Jan 11 14:06:28 2012 Leo SingerHowToComputer Scripts / ProgramsHowTo for getting data from NDS off site This may or may not be general knowledge
already, but Jamie and I added a HowTo explaining
how to retrieve channel data from the frame
  
  6186   Wed Jan 11 21:35:33 2012 Max De JongUpdateGeneralProjectorI finished mounting the new projector.
The projector and computer monitor now display
information.
  
  6187   Thu Jan 12 03:05:02 2012 kiwamuUpdateLSCOSA installed in AS[John / Valera / Kiwamu]
 We
installed a new weapon, an optical spectrum
  
  6188   Thu Jan 12 07:44:21 2012 steveUpdateSUSsapphire wire standoff quote
On Tue, Dec 20, 2011 at 11:37 PM,
Rana Adhikari wrote:
 standoff.PDF 
  6190   Thu Jan 12 10:11:59 2012 steveUpdatePEMoptical table top with 1" wall

    

       
            
 101122012atc.PDF 
  6191   Thu Jan 12 11:08:23 2012 Leo SingerUpdatePEMFunky spectrum from STS-2I am trying to stitch together spectra
from seismometers and accelerometers to produce
a ground motion spectrum from Hz to 100's
 spectrum.jpg 
  6192   Thu Jan 12 21:22:16 2012 Leo SingerConfigurationWIKI-40M UpdateUnable to create Wiki page I can't create a new page on the
40m wiki.  The page that I was trying
to create is
  
  6193   Thu Jan 12 23:13:42 2012 KojiConfigurationWIKI-40M UpdateUnable to create Wiki page

    
        
  
  6194   Thu Jan 12 23:19:56 2012 KojiUpdateSUSc1iscex is fine nowc1iscex
is working as before and the optic is damped.

What I checked
  
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