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ID Date Author Type Category Subjectdown Text Attachments
  11981   Mon Feb 8 15:36:37 2016 gautamUpdateGreen LockingAlternative mode-matching schemeI looked in the optics cabinet to see what
lenses we have available, and re-ran the
mode-matching calculation to see if we could
 Modematch_alternative.pdf 
  12834   Thu Feb 16 13:29:38 2017 gautamSummaryGeneralAlternative Calibration SchemeSummary:

Craig and I have been trying to
put together a Simulink diagram of the proposed
 AltCal.pdf 
  12835   Thu Feb 16 21:55:47 2017 ranaSummaryGeneralAlternative Calibration SchemeQuestion for Craig: What does the SNR of
our lines have to be? IF we're only trying
to calibrate the actuator in the audio band
  
  12842   Tue Feb 21 13:51:35 2017 CraigSummaryGeneralAlternative Calibration SchemeWe get SNR in two ways: the amplitude of
applied force and the integration time. 
So we are limited in two ways: stability
  
  12845   Wed Feb 22 10:16:54 2017 ranaSummaryGeneralAlternative Calibration SchemeOK, but the questions still stands: "   
  14544   Mon Apr 15 22:39:10 2019 gautamUpdateFrequency noise measurementAlternate setup with PSL pickoff[anjali, gautam]

just main points, anajli is going
to fill out the details.
  
  8185   Wed Feb 27 14:59:01 2013 EvanUpdate Altered MC demodulation phase I took out a short (~12 cm) SMA cable
from the "LO input" path into the
MC demod board in an attempt to maximize
 Q_and_I_before.epsQ_and_I_after.eps 
  6373   Wed Mar 7 13:59:07 2012 Ryan FisherSummaryComputer Scripts / ProgramsAlterations to base epics install for installing aLIGO conlog:In order to install the necessary extensions
to epics to make the aLIGO conlog work, I
have edited one file in the base epics install
  
  6377   Wed Mar 7 18:00:39 2012 Ryan FisherSummaryComputer Scripts / ProgramsAlterations to base epics install for installing aLIGO conlog:


   
        
            
  
  6387   Thu Mar 8 17:18:19 2012 Ryan FisherSummaryComputer Scripts / ProgramsAlterations to base epics install for installing aLIGO conlog:I have the aLIGO Conlog 'working' at http://192.168.113.209/conlog/conlog.php

  
  6391   Fri Mar 9 11:02:56 2012 Ryan FisherSummaryComputer Scripts / ProgramsAlterations to base epics install for installing aLIGO conlog:[H1]Too Many Fast Changing EPICS in New Conlog[/H1]
I have been monitoring the new conlog, and
it already has far too many rows.
  
  6394   Fri Mar 9 15:48:56 2012 Ryan FisherSummaryComputer Scripts / ProgramsAlterations to base epics install for installing aLIGO conlog:[SIZE=1]
I decided to make a backup of the database
and then delete it and make a new database:
  
  6396   Fri Mar 9 16:28:10 2012 Ryan FisherSummaryComputer Scripts / ProgramsAlterations to base epics install for installing aLIGO conlog:I created a page on the wiki for the new EPICS
log (conlog):
https://wiki-40m.ligo.caltech.edu/aLIGO%20EPICs%20log%20%28conlog%29
  
  7001   Mon Jul 23 07:39:55 2012 Ryan FisherSummaryComputer Scripts / ProgramsAlterations to base epics install for installing aLIGO conlog:Note:  The Conlog install instructions that
I started from were located here:
https://awiki.ligo-wa.caltech.edu/aLIGO/Conlog
  
  17121   Wed Aug 31 01:54:45 2022 KojiUpdateGeneralAlong the Y arm part 2   8x 
  17130   Fri Sep 2 15:35:19 2022 AnchalUpdateGeneralAlong the Y arm part 2[Anchal, Radhika]

The cables in USPS open box were
important cables that are part of the new
  
  17120   Wed Aug 31 01:53:39 2022 KojiUpdateGeneralAlong the Y arm part 1 

 
 9x 
  17119   Wed Aug 31 01:30:53 2022 KojiUpdateGeneralAlong the X arm part 4Behind the X arm tube  PXL_20220831_020757504.jpgPXL_20220831_020825338.jpgPXL_20220831_020856676.jpgPXL_20220831_020934968.jpgPXL_20220831_021030215.jpg 
  17118   Wed Aug 31 01:25:37 2022 KojiUpdateGeneralAlong the X arm part 3 

 
 9x 
  17117   Wed Aug 31 01:24:48 2022 KojiUpdateGeneralAlong the X arm part 2 

 
 9x 
  17116   Wed Aug 31 01:22:01 2022 KojiUpdateGeneralAlong the X arm part 1 

Attachment 5:
RF delay line was accommodated in 1X3B. (KA)
 9x 
  17129   Fri Sep 2 15:30:10 2022 AnchalUpdateGeneralAlong the X arm part 1[Anchal, Radhika]

Attachment 2: The custom
cables which were part of the intermediate
  
  14425   Fri Feb 1 01:24:06 2019 gautamUpdateSUSAlmost ready for pumpdown tomorrow[koji, chub, jon, rana, gautam]

Full story tomorrow, but we went
through most of the required pre close-up
  
  5778   Tue Nov 1 18:45:48 2011 JenneUpdateComputersAllegra's screensI was trying to give Allegra a second head,
and it didn't quite work.  It's still
in progress.  Steve, you might not like
  
  15246   Wed Mar 4 11:10:47 2020 YehonathanUpdateComputersAllegra revivalAllegra had no network cable and no mouse.
We found Allegra'snetwork cable (black)
and connected it.
  
  2509   Tue Jan 12 11:34:26 2010 josephbUpdatePEMAllegra dataviewer

    
        
  
  3017   Sun May 30 17:51:04 2010 kiwamuHowToPEMAllegra dataviewerI found the dataviewer didn't work only
on Allegra. This thing sometimes happened
as described in
  
  1294   Wed Feb 11 15:01:47 2009 josephbConfigurationComputersAllegraSo after having broke Allegra by updating
the kernel, I was able to get it running
again by copying the xorg.conf.backup file
  
  15155   Sun Jan 26 13:30:19 2020 gautamUpdateSUSAll watchdogs tripped, now restoredLooks like a M=4.6
earthquate in Barstow,CA tripped all
the suspensions. ITMX got stuck. I restored
 EQ_Jan25.pdf 
  15335   Fri May 15 19:10:42 2020 gautamUpdateSUSAll watchdogs tripped, now restoredThis
EQ in Nevada seems to have tripped all watchdogs.
ITMX was stuck. It was released, and all
  
  2467   Wed Dec 30 10:58:48 2009 AlbertoUpdateGeneralAll watchdogs tripped this morningThis morning I found all the watchdogs
had tripped during the night.
I restored them all.
  
  2468   Wed Dec 30 18:01:03 2009 Alberto, RanaUpdateGeneralAll watchdogs tripped this morning


   
        
            
  
  305   Sat Feb 9 13:32:07 2008 JohnSummarySUSAll watchdogs trippedWhen I arrived this afternoon the watchdogs
had tripped on all optics. I reset them and
enabled the coil currents.
  
  306   Sun Feb 10 20:47:01 2008 AlanSummarySUSAll watchdogs trippedA moderate earthquake occurred at 11:12:06
PM (PST) on Friday, February 8, 2008.
The magnitude 5.1 event occurred 21 km (13
  
  15373   Wed Jun 3 19:19:11 2020 gautamUpdateSUSAll watchdogs trippedThis
EQ seems to have knocked all suspensions
out. ITMX was stuck. It is now released,
  
  14591   Fri May 3 09:12:31 2019 gautamUpdateSUSAll vertex SUS watchdogs were trippedI found the 8 vertex watchdogs tripped
today morning. The ETMs were fine, suggesting
this was not an actual earthquake. I suspect
 SUSwatchdogs.png 
  14596   Mon May 6 11:05:23 2019 JonUpdateSUSAll vertex SUS watchdogs were trippedYes, this was a consequence of the systemd
scripting I was setting up. Unlike the old
susaux system, we decided for safety NOT
  
  15578   Wed Sep 16 17:44:27 2020 gautamUpdateCDSAll vertex FE models restartedI had to make a CDS change to the c1lsc
model in an effort to get a few more signals
into the models. Rather than risk requiring
 CDS.png 
  8962   Fri Aug 2 22:51:10 2013 JenneUpdateGeneralAll vent tasks complete, just need oplev check[Manasa, Koji, Jenne]
We went into the BS and IOO chambers,
and aligned the green beams such that they
  
  4084   Tue Dec 21 16:34:42 2010 kiwamuSummaryVACAll the test masses have been wiped [Jenne and Kiwamu]
 We wiped all the test masses with
  
  1146   Wed Nov 19 10:32:11 2008 AlbertoConfigurationElectronicsAll the Marconi Set to the Rubidium Frequency StandardI placed the SRS Rubidium FS275 over the PSL
rack, next to the frequency counter. This
one and the Marconi on the PSL rack have
  
  1147   Wed Nov 19 18:02:18 2008 ranaConfigurationElectronicsAll the Marconi Set to the Rubidium Frequency StandardNot sure what was going on before. I changed
the frequency counter to use an AC coupled
input, and had it average
  
  1975   Tue Sep 8 17:57:30 2009 JenneUpdatePEMAll the Acc/Seis working againAll of the accelerometers and seismometers
are plugged in and functional again. 
The cables to the back of the accelerometer
  
  5007   Wed Jul 20 20:44:56 2011 JamieUpdateSUSAll sus models rebuilt and restartedThere were a couple of recent improvements
to the sus_single_control model that had
not been propagated to all of the suspension
  
  11054   Fri Feb 20 12:29:01 2015 ericqUpdateCDSAll optics dampedI noticed some diagnostic bits in the c1sus
IOP complaining about user application timing
and FIFO under/overflow (The second and fourth
  
  7551   Mon Oct 15 22:16:09 2012 JenneUpdateSUSAll oplev gains turned to 0Steve has promised to fix up all of the
oplevs, but it hasn't happened yet, so I've
turned all of the oplev gains to zero, so
  
  7724   Mon Nov 19 15:15:22 2012 JenneUpdateSUSAll oplev gains turned on

    

       
            
  
  12284   Sun Jul 10 15:54:23 2016 ericqUpdateCDSAll models restartedFor some reason, all of the non-IOP models
on the vertex frontends had crashed.

To get all of the bits green, I
  
  13885   Thu May 24 10:16:29 2018 gautamUpdateGeneralAll models on c1lsc frontend crashedAll models on the c1lsc
front end were dead. Looking at slow trend
 c1lsc_crashed.png 
  14241   Wed Oct 10 12:38:27 2018 yukiConfigurationLSCAll hardware was installedI connected DAC - AIboard - PZTdriver -
PZT mirrors and made sure the PZT mirrors
were moving when changing the signal
  
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