40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log, Page 155 of 341  Not logged in ELOG logo
ID Date Author Type Category Subjectup Text Attachments
  11799   Mon Nov 23 14:45:39 2015 ericqUpdateComputer Scripts / ProgramsNew softwareCOMSOL 5.1 has been installed at: /cvs/cds/caltech/apps/linux64/comsol51/bin/comsol

MATLAB 2015b has been installed
  
  3251   Tue Jul 20 15:06:48 2010 josephb, bobOmnistructureGeneralNew speakers in ceiling in control roomAfter the crane training, Bob attached
speakers to the ceiling right next to the
projector, for use with presentations.
  
  12124   Fri May 20 17:36:06 2016 gautamUpdateLSCNew stands for TransMon/Oplev QPDsAs we realized during the EX table switch,
the transmitted beam height from the arm
is not exactly 4" relative to the endtable,
  
  12142   Wed Jun 1 09:06:38 2016 SteveUpdateLSCNew stands for TransMon/Oplev QPDsMachined from I-beam 6061 T6 Aluminum 5"
x 0.5 x 3.25

 pdIb.PDFpdstand.pdf 
  11448   Mon Jul 27 17:51:06 2015 EveUpdateSummary PagesNew summary page tabs and other improvementsThe summary pages can still be found at https://nodus.ligo.caltech.edu:30889/detcharsummary/ (EDIT:
in an older version of this post I listed
  
  7815   Wed Dec 12 14:59:49 2012 ManasaConfiguration40m UpgradingNew tip-tilts layout in BSCI have updated the BSC layout to include
the new tip-tilts. The bigger footprints
of the tiptilts are on in
 bs.png 
  4679   Tue May 10 16:42:49 2011 josephbUpdateCDSNew upconversion model (c1uct)[Ryan, Joe]
Ryan added the c1uct (upconversion
tester) model to the c1ioo machine.  
  
  16367   Thu Sep 30 14:09:37 2021 AnchalSummaryCDSNew way to ssh into c1teststandLate elog, original time
Wed Sep 29 14:09:59 2021

We opened a new port (22220) in
  
  13170   Mon Aug 7 22:50:57 2017 KojiUpdateGeneralNew wifi router for the GC network installedI have replaced the old 11n wifi router
(CISCO / Linksys) for the GC network with
a new one with 11ac technology.
  
  3889   Thu Nov 11 01:34:27 2010 JenneUpdateSUSNew-Old ETM towers assembled[Suresh, Jenne]
We have put together the new-old
ETM towers.  These are the ones which
  
  9020   Fri Aug 16 21:15:04 2013 ranaUpdateCDSNew/old CDS laptop for X-EndI took the "aso-laptop" and made
it into Ubuntu a couple months ago. Today
I added it to the Martian network and then
  
  9297   Sat Oct 26 22:48:55 2013 ranaUpdateCDSNew/old CDS laptop for X-End    
  11442   Thu Jul 23 21:12:14 2015 IgnacioUpdateGeneralNewer accelerometer huddle test data + detrendingIn the last post concerning the self noise
of the accelerometers, I mentioned the differences
between the two data sets I was playing with.
 old_data_1.pngold_data_2.pngnew_data.pngsix_old_data.png 
  11450   Tue Jul 28 09:31:35 2015 IgnacioUpdateGeneralNewest accelerometer huddle testI downloaded new accelerometer huddle test
data from last night and analyzed it. This
new data set is ~55 mins and uses the same
 selfnoise_allsix_miso_newest.png 
  12704   Thu Jan 12 02:45:53 2017 JohannesUpdateGeneralNext armloss stepsAs stated in elog
12618, using an oscilloscope to average
the reflected powers and thus circumventing
 ass_illustration.pdf 
  4155   Fri Jan 14 12:29:57 2011 KojiUpdateLockingNext steps for the greenThese are the next steps for a better operation
of the arm locking. They are suitable for
the day time activities
  
  12367   Wed Aug 3 15:36:57 2016 SteveUpdateSUSNi plated magnets & epoxy orderedNi plated SmCo magnets with specification
of LIGO-C1103521-v2 for SOS ordered from Electron
  
  5757   Fri Oct 28 15:33:06 2011 JenneUpdateComputersNifty screen generatorSuresh showed me a cool script that Mirko
made, but didn't elog
  
  5758   Fri Oct 28 15:45:52 2011 MirkoUpdateComputersNifty screen generator

    
        
  
  6751   Tue Jun 5 00:49:28 2012 JenneUpdateGreen LockingNightly update[Yuta, Jenne]
Vaguely chronological order:
Found a beat peak, thought it was
  
  15344   Fri May 22 10:14:47 2020 JordanUpdateGeneralNitrogen ReplacementI was in the lab for Clean and Bake activities
and I replaced an empty N2 tank. Left tank
is at 2600 psi right tank at ~1300 psi.
  
  16808   Mon Apr 25 14:19:51 2022 JCUpdateGeneralNitrogen TankComing in this morning, I checked on the
Nitrogen tanks to check the level. One of
the tanks were empty, so I went ahead and
  
  16809   Mon Apr 25 14:49:02 2022 KojiUpdateGeneralNitrogen TankFor your (and mine) info:

N2 pressure can be monitored on
the 40m summary page: https://nodus.ligo.caltech.edu:30889/detcharsummary/day/20220425/vacuum/
  
  8766   Thu Jun 27 17:04:49 2013 JenneUpdatesafetyNitrogen bottle too hot - overpressuredAll of us in the control room / desk area
heard a sudden whoosh of air a few minutes
ago.  It kind of sounded like a pressure
  
  576   Thu Jun 26 18:27:04 2008 ranaUpdateComputer Scripts / ProgramsNo Dataviewer No CryDataviewer was hanging. It would open the
Grace window but then not plot anything.
Since DTT was working
  
  14286   Fri Nov 9 15:00:56 2018 gautamUpdateIOONo IFO beam as TT1 UL hijacked for REFL55 checkThis
problem resurfaced. I'm doing the
debugging.
 REFL55_wht_chk.png 
  10652   Thu Oct 30 01:21:37 2014 JenneUpdateLSCNo MICH in REFL165[Koji, Jenne, Diego]
Summary: 
 MICH_to_REFL165_29Oct2014.pdf 
  1425   Wed Mar 25 01:37:35 2009 rana, yoichiSummaryIOONo Reference Cavity RequiredWe were wondering if we need to have a reference
cavity. One possible reason to have one is
to reduce the free running
  
  1451   Wed Apr 1 23:18:07 2009 rana, kojiSummaryIOONo Reference Cavity RequiredKoji sent us a note about our "No Reference
Cavity Required" entry. I thought that it
nicely summarizes the
  
  4509   Mon Apr 11 13:30:04 2011 josephb, JamieUpdateCDSNo Wiper script - Frames full over weekendProblem:
The daqd
process was dying every minute or so when
it couldn't write frame.  This was slowing
  
  7685   Wed Nov 7 19:07:45 2012 JenneUpdateCamerasNo beam seen on external camera viewsI have written some scripts which collect
photos, then average them together, and subtract
out an averaged background (as Rana described
 BS_PRM_7Nov2012_SpotImage_pixelsTimes3.pngETMXF_7Nov2012_SpotImage_pixelsTimes3.pngETMYF_7Nov2012_SpotImage_pixelsTimes3.pngITMYF_7Nov2012_SpotImage_pixelsTimes3.pngMC2F_7Nov2012_SpotImage_pixelsTimes3.png 
  9951   Wed May 14 02:37:58 2014 JenneUpdateLSCNo big locking newsTonight was mostly cleaning up some scripts,
including the re-writing the restore and
align scripts for the optics. 
  
  4793   Tue Jun 7 11:39:27 2011 JamieUpdateSUSNo binary output module in ETMY
    

       
            
  
  14554   Fri Apr 19 11:36:23 2019 gautamUpdateSUSNo consistent solution for output matrixTher isn't a consistent set of OSEM
coil gains that explains the best actuation
vectors we determined yesterday. Here are
  
  14557   Fri Apr 19 15:13:38 2019 ranaUpdateSUSNo consistent solution for output matrixlet us
have 3 by 4, nevermore
  
  3121   Fri Jun 25 15:22:45 2010 JenneOmnistructureSAFETYNo entry to the 40m LVEA until further notice!                                                                                                
           
  
  7715   Thu Nov 15 03:09:08 2012 JenneUpdateAlignmentNo good progress, many optionsI didn't make any concrete progress today.
AS and REFL cameras are in place, and Manasa
has put ND 0.5 filters on both. I used a
  
  816   Fri Aug 8 13:29:54 2008 YoichiUpdateSUSNo groove in the stand-off ... wait, it is not even a stand-off !Yoichi, Steve, Seiji

We took magnified pictures of the stand-offs
 north-standoff-preview.jpgsouth-standoff-preview.jpgNo-groove.zip 
  817   Fri Aug 8 15:10:35 2008 YoichiUpdateSUSNo groove in the stand-off ... wait, it is not even a stand-off !I tried to find the missing stand-off and
the guide rod in the BS chamber, but I couldn't.
  
  11089   Tue Mar 3 02:43:06 2015 JenneOmnistructurePEMNo heat??It's super cold in the control room
and EE bench area tonight.  I'm
wondering if, similar to what happened on
  
  12893   Mon Mar 20 11:18:58 2017 gautamUpdateCDSNo internet connectivity on control room machinesThere
is no internet connectivity on any of the
  
  12894   Mon Mar 20 14:39:44 2017 gautamUpdateCDSNo internet connectivity on control room machinesKoji
diagnosed that the NAT router was to blame
  
  10562   Fri Oct 3 03:02:17 2014 ericqUpdateLSCNo luck locking DRMII haven't been able to lock the DRMI tonight,
neither with 1F and no arms nor 3F and arms
held off with ALS... I tried previous recipes,
  
  11997   Wed Feb 17 13:45:15 2016 ericqUpdateGeneralNo monit on frontendsdaqd has indeed continued to be unstable.
I found system times had drifted apart again...
I think something weird happened in the booting
  
  9771   Tue Apr 1 20:56:27 2014 JenneUpdatePEMNo noticeable effect from Chile's M8.2 earthquakeKoji locked the MC, arms, and PRMI, with
no troubles, after the M8.2 earthquake off
the coast of Chile, that happened about 4
  
  11309   Tue May 19 11:50:52 2015 manasaUpdatePEMNo noticeable effect from M4.0 earthquakeThere was an earthquake: M4.0
- 40km SSW of South Dos Palos, California 

No noticeable effects on the IFO.
  
  2520   Mon Jan 18 09:44:36 2010 Alberto, BobOmnistructureEnvironmentNo rain water infiltrations so farIt has rained continuously for the last
24 hours. Bob walked through the lab looking
for possible water infiltrations. The floor
  
  2950   Tue May 18 23:03:08 2010 JenneUpdateIOONo real progress....[Jenne, Kevin]
No real progress today.  We
opened the chambers and again tried to lock
  
  15056   Wed Nov 27 23:24:01 2019 gautamUpdateLSCNo shaking but no inspiration eitherSummary:

I tried the following minor changes
to the locking procedure to see if there
  
  15057   Sun Dec 1 13:38:48 2019 ranaUpdateLSCNo shaking but no inspiration eitheryes, reasonable   
ELOG V3.1.3-