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ID Date Author Type Category Subjectdown Text Attachments
  11139   Fri Mar 13 03:10:35 2015 JenneUpdateLSC6+ CARM->REFL transitions, 1 DARM->AS transitionMuch more success tonight. 
I only started my tally after I got the CARM
 AS55whitening_lockloss_12March2015.pdfMoreDARMB_powerWentDown_12March2015.pngcarm_cm_up_zip.sh.gz 
  11140   Fri Mar 13 14:11:59 2015 ranaUpdateLSC6+ CARM->REFL transitions, 1 DARM->AS transitionSince the DARM_OUT signal is only 500 counts_peak,
I don't see why AS55 whitening needs
to be switched on.
  
  12392   Wed Aug 10 15:34:24 2016 SteveUpdateSUS6 in-lbs torque driver for wire clamp screwThe 7.5 in-lb of Wiha seems at the upper
end of torque range for a 4-40 SS screw

Wiha 28502 ordered with range 5
  
  11596   Mon Sep 14 23:12:49 2015 ericqUpdateLSC55MHz modulation phase effect on PRMIWith the adjustable delay line box installed
in the 55MHz modulation path, I've
measured the PRMI sensing matrix as a function
 PRMI_CAR_0ns.pdfPRMI_CAR_4ns.pdfdelaySweep_nominal.pdf55delay_PRMI_REFL33.pdf 
  11173   Wed Mar 25 18:48:11 2015 KojiSummaryLSC55MHz demodulators inspection[Koji Den EricG]

We inspected the {REFL, AS, POP}55
demodulators.
  
  8057   Mon Feb 11 16:16:27 2013 SteveUpdateVAC55 days at atmoshereCP
Stat 100  sheet-covers were replaced
by clean ones on open chambers BS, ITMX,
 atm55d.png 
  11490   Tue Aug 11 02:40:29 2015 ericqUpdateLSC50m delay lines - Rough calibrationsJessica will soon ELOG about some measurements
suggesting that the conductive connector-ized
ALS delay line enclosure is the way to go,
  
  574   Thu Jun 26 14:06:00 2008 MashaUpdateGeneral500mW INNOLIGHT NPRO infoBelow is the placement of 500mW INNOLIGHT
NPRO mephisto laser. It is set up on the
Symmetric Port table. [IMG]elog:574/1[/IMG]
 500mW_NPRO.JPG 
  8557   Thu May 9 02:19:53 2013 JenneUpdateLocking50% BS installed in POP pathKoji had the good idea of trying to measure
the motion of the POP beam, and feeding that
signal to PRM yaw to stabilize the motion. 
  
  754   Tue Jul 29 11:50:01 2008 JenneUpdateEnvironment5.6 Earthquake Earthquake Details
Magnitude 5.6
Date-Time
  
  1653   Thu Jun 4 23:39:23 2009 peteUpdatePEM5 days, 20 days of accelerometersLooks like yesterday was particularly noisy. 
It's unclear to me why diurnal variation
much more visible in MC1_Y, and why the floor
 acc_5day.pngacc_20days.png 
  6092   Thu Dec 8 22:44:55 2011 KojiUpdateRF System4ch demod test result1) Linearity Test
LO input level was +10dBm. The LO
freq was 11MHz and 55MHz for CH1 and CH2
 RF_DEMOD_TEST_111208.pdf 
  6086   Thu Dec 8 00:45:13 2011 KojiUpdateRF System4ch demod is readyI have tested the left 2ch of 4ch demod
board.
The left most is for 11MHz, and the
  
  1414   Fri Mar 20 15:54:29 2009 steveOmnistructureGeneral480V crane power switch on MEZCES Mezzanine is beeing rebuilt to accommodate
our new neighbor: the 20ft high water slide...&
.jacuzzi
  
  2612   Thu Feb 18 10:10:43 2010 steveConfigurationGeneral480 V AC power turned offOnly the 40m cranes are running on 480VAC
The electricians are rewiring this transformer
on the mezzanine so it was shut down.
  
  2966   Fri May 21 11:56:34 2010 AlbertoUpdate40m Upgrading40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue.I update my old 40mUpgrade Optickle model,
by adding the latest updates in the optical
layout (mirror distances, main optics transmissivities,
 7x 
  2968   Fri May 21 16:24:11 2010 KojiUpdateLSC40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue.1. Give us the designed arm length. What
is the criteria?
2. The arm lengths got shorter as
  
  2973   Mon May 24 10:03:14 2010 ranaUpdateLSC40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue. 
 If you have a working 40m Optickle
model, put it in a common place in the SVN,
  
  2974   Mon May 24 11:32:05 2010 ranaUpdateLSC40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue.


   
        
            
 reflRFpowerVsArmLength.png 
  15879   Mon Mar 8 12:54:54 2021 gautamUpdateEquipment loan40m-->Cryo
Busby box
SR554 transformer
preamplifier
  
  549   Fri Jun 20 08:30:27 2008 stivUpdatePhotos40m summer line up 2008atm1: John, Alberto, Yoichi, Koji, Masha,
and Sharon 
 P1020559.pngP1020560.png 
  6883   Wed Jun 27 15:10:34 2012 JamieUpdateComputer Scripts / Programs40m summary webpages moveI have moved the summary pages stuff that
Duncan set up to a new directory that it
accessible to the nodus web server and is
  
  6686   Fri May 25 19:13:10 2012 Duncan MacleodSummaryComputer Scripts / Programs40m summary webpages40m summary webpages
 The
aLIGO-style summary webpages are now running
on 40m data! They are running on megatron
  
  6687   Fri May 25 20:45:25 2012 Duncan MacleodSummaryComputer Scripts / Programs40m summary webpagesThere is now a job in the crontab that
will run the shell wrapper every hour, so
the pages _should_ take care of themselves.
  
  5254   Wed Aug 17 12:14:27 2011 Josh SmithOmnistructureComputer Scripts / Programs40m summary page plansJosh Smith, Fabian Magana-Sandoval, Jackie
Lee (Fullerton)
Thanks to Jamie and Jenne for the
  
  2115   Mon Oct 19 11:00:52 2009 steveHowToSAFETY40m safety trainingKiwamu, Alex and Zach are practicing mandatory
IR-safety scan at the 40m-PSL
40m specific safety indoctrination
 safety_10_2009.JPG 
  15303   Tue Apr 14 23:50:06 2020 KojiUpdateGeneral40m power glitch recovery[Koji / Gautam (Remote)]

Lab
status
  
  15300   Tue Apr 7 15:30:40 2020 JonSummaryNoiseBudget40m noise budget migrated to pygwincIn the past year, pygwinc has expanded
to support not just fundamental noise calculations (e.g.,
quantum, thermal) but also any number of
  
  5650   Tue Oct 11 15:19:17 2011 ranaHowToEnvironment40m mapThe Kinemetrics dudes are  40mLabMap.png40mLabMap.jpg 
  6058   Thu Dec 1 11:25:10 2011 steveUpdatePEM40m infrastructure holds up well in strong wind condition Santa Anna wind speed was locked
around 60 kmph last night on campus. The
strongest in 30 years.  The lab hold
 santaannawind.pngwind.png 
  340   Sun Feb 24 10:51:58 2008 tfFrogsEnvironment40m in phdcomics?[url=http://www.phdcomics.com/comics/archive.php?comicid=977][img]http://www.phdcomics.com/comics/archive/phd021308s.gif[/img][/url]   
  5651   Tue Oct 11 17:32:05 2011 jamieHowToEnvironment40m google maps linkHere's another useful link:
http://maps.google.com/maps?q=34.13928,-118.123756
  
  10507   Mon Sep 15 18:55:51 2014 ranaUpdateDAQ40m frames onto the cluster Dan Kozak is rsync transferring /frames
from NODUS over to the LDAS grid. He's doing
this without a BW limit, but even so its
  
  10632   Wed Oct 22 21:06:33 2014 ChrisUpdateDAQ40m frames onto the cluster


   
        
            
  
  2315   Mon Nov 23 17:53:08 2009 JenneUpdateComputers40m frame builder backup acting funnyAs part of the fb40m restart procedure
(Sanjit and I were restarting it to add some
new channels so they can be read by the OAF
  
  2322   Tue Nov 24 16:06:45 2009 JenneUpdateComputers40m frame builder backup acting funny

    
        
  
  2330   Wed Nov 25 11:10:05 2009 JenneUpdateComputers40m frame builder backup acting funny

    
        
  
  13404   Sat Oct 28 00:36:26 2017 gautamUpdateCDS40m files backup situation - ddrescueNone of the 3 dd backups I made were bootable
- at boot, selecting the drive put me into
grub rescue mode, which seemed to suggest
 415E2F09-3962-432C-B901-DBCB5CE1F6B6.jpegBFF8F8B5-1836-4188-BDF1-DDC0F5B45B41.jpeg 
  13262   Mon Aug 28 16:20:00 2017 gautamUpdateCDS40m files backup situationThis elog is meant
to summarize the current backup situation
  
  13263   Mon Aug 28 17:13:57 2017 ericqUpdateCDS40m files backup situationIn addition to bootable full disk backups,
it would be wise to make sure the important
service configuration files from each machine
  
  13332   Tue Sep 26 15:55:20 2017 gautamUpdateCDS40m files backup situationBackups
of the root filesystems of 
  
  13339   Thu Sep 28 10:33:46 2017 gautamUpdateCDS40m files backup situationAfter consulting with Jamie, we reached
the conclusion that the reason why the root
of FB1 is so huge is because of the way the
  
  13340   Thu Sep 28 11:13:32 2017 jamieUpdateCDS40m files backup situation 




  
  13342   Thu Sep 28 23:47:38 2017 gautamUpdateCDS40m files backup situationThe nodus
backup too is now complete - however,
  
  13345   Fri Sep 29 11:07:16 2017 gautamUpdateCDS40m files backup situationThe FB1   
  13361   Thu Oct 5 13:58:26 2017 gautamUpdateCDS40m files backup situationThe 4TB HGST drives have arrived. I've
started the FB1 dd
  
  13364   Fri Oct 6 12:46:17 2017 gautamUpdateCDS40m files backup situationLooks to have worked this time around.

  
  3869   Fri Nov 5 15:20:18 2010 josephb, alexSummaryCDS40m computer slow down solvedProblem:
The 40m computers were responding
sluggishly yesterday, to the point of being
  
  3872   Fri Nov 5 21:49:12 2010 ranaSummaryCDS40m computer slow down solved


   
        
            
  
  3877   Sat Nov 6 16:13:14 2010 ranaSummaryCDS40m computer slow down solvedAs part of the effort to debug what was
happening with the slow computers, I disabled
the auto MEDM snapshots process that Yoichi/Kakeru
  
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