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ID Date Author Type Category Subjectdown Text Attachments
  8762   Thu Jun 27 05:44:51 2013 ranaUpdate 40MARS wireless network problems

    

       
            
  
  8763   Thu Jun 27 10:45:41 2013 SteveUpdateGeneral40MARS wireless network problems

    

       
            
  
  8605   Tue May 21 16:23:06 2013 ManasaUpdateGeneral40MARS wireless network problem RETURNS

    

       
            
  
  8782   Fri Jun 28 11:33:32 2013 SteveUpdate 40MARS wireless network problem

    

       
            
  
  3081   Wed Jun 16 18:12:16 2010 nancyConfigurationComputers40MARSi added my laptop's mac address to teh
martian at port 13 today.
 
  
  3083   Wed Jun 16 18:44:07 2010 AlbertoConfigurationComputers40MARS


   
        
            
  
  7445   Thu Sep 27 13:05:55 2012 Eric GustafsonUpdateLSC40 meter photodiode frequency response measurement system installationJenne, Mike and   
  7448   Thu Sep 27 17:00:41 2012 Eric GustafsonUpdateLSC40 meter photodiode frequency response measurement system installationMike and I installed all of the telescopes
and launching hardware for REFL11, REFL33,
REFL55, AS55, MCRef, POX11 and POP55. On
  
  16261   Tue Jul 27 23:04:37 2021 AnchalUpdateLSC40 meter party[ian, anchal, paco]

After our second attempt of locking
PRFPMI tonight, we tried to resotre XARM
 Screenshot_2021-07-27_22-19-58.png 
  1717   Tue Jul 7 15:08:49 2009 KojiSummaryPhotos40 high school students visited 40MAlan and Alberto conducted a tour of 40
high-school students.
It may be the same tour that Rana
 IMG_1848.jpg 
  2283   Tue Nov 17 15:54:34 2009 ranaSummaryPEM40 days of weatherthe inside temperature is alarming at the
red level today - should check if the HIHI
value is set correctly
 Untitled.pdf 
  268   Fri Jan 25 15:53:59 2008 AlbertoUpdateElectronics40 dB from the 3rd order ChebyschevI managed to tune the 7 knobs in the 3rd order
Chebyshev bandpass filter obtaining the tranfer
function attached to this entry. We have
 166MhzElog.png 
  1420   Tue Mar 24 09:04:02 2009 steveUpdateSUS4.8 mag earthquakeSRM, ITMX, ETMX, ITMY and ETMY lost damping
at 4:55am this morning from 4.8 magnitude
earthquake.
  
  13829   Thu May 10 08:45:16 2018 SteveUpdateGeneral4.5M eq. Cabazon, CA20180508 4:49am Cabazon earth quake 4.5M
at 79 miles away.  ETMX is in load cell
measurment condition.
 Cabazon4.5m79m.png4.5Meq.png 
  11914   Wed Jan 6 08:09:04 2016 SteveUpdatePEM4.5 Mag Banning EQIFO restored after 4.5 Mag Banning, Ca
earthquake.
 4.5Mag__Banning.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 
  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 
  9734   Mon Mar 17 20:44:42 2014 ranaUpdateSUS4.4M local earthquake    
  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
  
  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. 
  
  11904   Wed Dec 30 11:09:52 2015 SteveUpdateSUS4.4M EQSuspensions recovered after 4.4 Mag EQ

 
 4.4MeqDevore.pngfree.png 
  9559   Thu Jan 16 08:19:29 2014 SteveUpdatePEM4.4 and 3.8M local earth quakes

    

       
            
 local4.4eq.pnglocal3.8eq.png 
  9556   Wed Jan 15 13:05:30 2014 JenneUpdatePEM4.4 EQ in Fontana, CAIt looks like there was a 4.4 magnitude
earthquake near Fontana, CA around 1:30am
today.  This tripped all of the suspension
  
  11903   Mon Dec 28 14:12:23 2015 SteveUpdateSUS4.2M EQSuspensions are recovered after 4.2 Mag
earth quake. No obvoius sign of damage.

 
 4.2Meq.pngrecovered4.2M.png 
  12995   Wed May 17 08:19:59 2017 SteveUpdateSUS4.1M earthquake Sus dampings recovered. ETMY oplev needs
to be recentered.

 eq_4.1_SantaBarbara.png4.1m_Isla_Vista_CA.png 
  11158   Mon Mar 23 09:42:29 2015 SteveSummaryIOO4" PSL beam path postsTo achive the same beam height each components
needs their specific post height.

 .75odSSpost.pdfMC_mml_trans_clamp.jpgPMCmmLn.jpg 
  8473   Mon Apr 22 19:48:56 2013 JenneUpdate40m Upgrading4 pins enough?Are 4 of these spring loaded pins enough? 
I'm not sure how one pin can hold 2 lids
at each point.  It seems like we need
  
  8475   Tue Apr 23 15:00:20 2013 JenneUpdate40m Upgrading4 pins enough?

    

       
            
  
  9576   Mon Jan 27 09:08:00 2014 SteveUpdateVAC4 days at atmosphere 
 
 day4atm.pngvent76bgTp3d4.png 
  6929   Fri Jul 6 09:27:40 2012 steveUpdateVAC4 days at atm I'm looking for some movement indicators
of the vent-pump down events.
 
 vent_moves.png 
  11005   Wed Feb 11 18:11:46 2015 KojiSummaryLSC3f modulation cancellation33MHz sidebands can be elliminated by careful
choice of the modulation depths and the relative
phase between the modulation signals.
  
  11019   Thu Feb 12 23:47:45 2015 KojiUpdateLSC3f modulation cancellation- I built another beat setup on the PSL
table at the South East side of the table.
- The main beam is not touched, no
  
  11028   Sat Feb 14 00:48:13 2015 KojiUpdateLSC3f modulation cancellation[SUCCESS]
The 3f sideband cancellation seemed worked
nicely.
  
  11029   Sat Feb 14 19:54:04 2015 KojiSummaryLSC3f modulation cancellationOptical
Setup

[Attachment 1]
 beat_setup1.JPGbeat_setup2.JPGelectrical_setup.pdf 
  11031   Sat Feb 14 20:37:51 2015 KojiSummaryLSC3f modulation cancellationExperimental
results

- PD response [Attachment
 beat_pd_response.pdfbeat_nominal.pdf3f_reduction.pdfbeat_3f_reduced.pdf 
  1354   Wed Mar 4 12:38:07 2009 AlbertoUpdateComputer Scripts / Programs3f locking simulationsI simulated the REFL signals demodulated
at the differential frequencies of the sidebands
(f2-f1), at their summed frequencies (f2+f1).
 23_3f_40mOld_DDplots.pdf59_3f40m_Upgrade_DDplots.pdf20_3f_AdvL_DDplots.pdf 
  5377   Sat Sep 10 14:55:28 2011 KeikoUpdateLSC3f demodulation board check To
check the demodulation boards for REFL33
and REFL165, a long cable from ETMY (SUS-ETMY-SDCOIL-EXT
  
  5378   Sat Sep 10 16:10:42 2011 KeikoUpdateLSC3f demodulation board checkThere is a LP filter just after the RF
input of an demodulation board (its schematic
can be found as D990511-00-C on DCC). I have
 REFL33-input-filter.png 
  5380   Sat Sep 10 18:57:52 2011 KeikoUpdateLSC3f demodulation board checkThe
phase delay due to the RF input filter on
the demodulation board will not bother the
  
  5385   Sun Sep 11 22:36:32 2011 KeikoUpdateLSC3f demodulation board checkFilters
at the RF inputs of REFL33 and REFL165 demodulation
boards were measured again. The filters will
 REFL33.pngREFL165.png 
  5386   Mon Sep 12 13:24:07 2011 KeikoUpdateLSC3f demodulation board checkI also quickly
checked the orthogonality of the demodulation
board for REFL33 and REFL165 using function generators
  
  5387   Mon Sep 12 16:27:01 2011 KeikoUpdateLSC3f demodulation board checkWait. I am checking the whitening filters
of the 33 and 165 demodulation boards.
Also, 
  
  5388   Mon Sep 12 18:40:35 2011 KeikoUpdateLSC3f demodulation board checkLSC-REFL33-I-IN1(IN2, OUT) and   
  5394   Tue Sep 13 15:00:25 2011 KeikoUpdateLSC3f demodulation board checkWhitening filters for the REFL33 &
165 demodulated channels were measured and
confirmed that they are working. They can
 WF33.pdfWF165.pdf 
  5399   Tue Sep 13 23:08:51 2011 KeikoUpdateLSC3f demodulation board checkKeiko,
Jamie , Kiwamu
The
 REFL33-modified.pngREFL165-modified.png 
  5412   Thu Sep 15 01:06:20 2011 KeikoUpdateLSC3f demodulation board checkIn addition to REFL 33 ans 165, I checked
the orthogonality for the other existing
three channels.
  
  5440   Fri Sep 16 21:26:12 2011 KeikoUpdateLSC3f demodulation board checkThe demodulation
phases and gains for the all existing channels, 
  
  9976   Tue May 20 16:48:52 2014 ericqUpdateLSC3f StabilitySo, I really should have done this as soon
as Manasa
measured the arm lengths... I've
 3fs.pdfCARMsweepPrcFields.pdf 
  9977   Tue May 20 22:42:28 2014 ericqUpdateLSC3f Stability Here's the angles of MICH and PRCL
from the my earlier plot by themselves; this
shows that the individual demod angles in
 PRCangles.pdf 
  5401   Wed Sep 14 01:19:20 2011 AnamariaConfigurationLSC3f PD Install in ProgressI have reconfigured the refl beam path
on the AP table to include REFL33 and REFL165.
Would be done if we hadn't prepared P BSs
  
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