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  40m Log, Page 299 of 339  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  2037   Thu Oct 1 15:42:55 2009 robUpdateLockingc1susvme2 timing problems update

    
        
 srmcpu2.png 
  2036   Thu Oct 1 14:22:28 2009 robUpdateSUSall suspensions undamped

    
        
  
  2035   Thu Oct 1 13:12:41 2009 KojiUpdateMZMZ Work from 13:00-I will investigate the MZ board. I will
unlock MZ (and MC).
  
  2034   Thu Oct 1 11:39:47 2009 JenneUpdateSUSMC2 damping restored again

    
        
  
  2033   Thu Oct 1 10:23:00 2009 steveUpdatePSLMC2 damping restored again The EQ did not change the input beam
pointing. All back to normal, except MC2
wachdogs tripped again.
 mc2again.jpg 
  2032   Thu Oct 1 09:36:09 2009 KojiUpdateMZMZ relocked (Re:suspention damping restored and MZ HV stuck)MZ stayed unlocked. Now It was relocked.

  
  2031   Thu Oct 1 08:37:43 2009 steveUpdateSUSsuspention damping restored and MZ HV stuckEarthquake 
of magnitude 5.0  shakes ETMY loose.
MC2 lost it's damping later.
 eq5oct1.jpg 
  2030   Thu Oct 1 03:12:56 2009 robUpdateLockingsome progressGood progress in IFO locking tonight, with
the arm powers reaching about half the full
resonant maximum. 
  
  2029   Wed Sep 30 17:49:21 2009 JenneUpdateAdaptive FilteringNew UP/DOWN scripts for OAF[Sanjit, Jenne]
The up and down scripts accessible
from the OAF (still C1:ASS-TOP) screen are
  
  2028   Wed Sep 30 12:21:08 2009 JenneUpdateComputersrestarted the elogI'm blaming Zach on this one, for trying
to upload a pic into the ATF elog (even though
he claims it was small....)  Blame assigned:
  
  2027   Wed Sep 30 02:01:28 2009 robUpdateLockingweekIt's been a miserable week for lock acquisition,
with each night worst than the last. 
The nadir was around Sunday night, when I
 srmcpu.png 
  2026   Wed Sep 30 01:04:56 2009 robUpdateComputersgriefmuch grief.  somehow a burt restore
of c1iscepics failed to work, and so the
LSC XYCOM settings were not correct. 
 C1LSC_XYCOM.jpg 
  2025   Tue Sep 29 23:43:49 2009 ranaAoGall down cond.Cosmic   Actel1.jpg 
  2024   Tue Sep 29 23:43:46 2009 robUpdateSUSITMY UL OSEMWe had a redo of elog entry 975
tonight.  The noisy OSEM was fixed by
jiggling the rack end of the long cable. 
 ITMYosemBAD.pdf 
  2023   Tue Sep 29 22:51:20 2009 KojiUpdateMZPossible gain mis-calibration at other places (Re: MZ work done)Probably there is the same mistake for
the PMC gain slider. Possibly on the FSS
slider, too???
  
  2022   Tue Sep 29 21:51:32 2009 KojiUpdateMZMZ work done : some noise checkingThe previous "+15" was Vctrl
= 0.25 [V]. Which was +18 dB.

  
  2021   Tue Sep 29 21:37:09 2009 ranaUpdateMZMZ work done : some noise checkingSince we used to run with a gain slider
setting of +15 dB on the MZ, I wanted to
check that the new setting of +30dB was OK.
 fsm.pdf 
  2020   Tue Sep 29 18:21:41 2009 KojiUpdateMZMZ work doneThe
MZ work completed. I replaced
the bad cross connection terminal. The gain
  
  2019   Tue Sep 29 16:14:44 2009 robConfigurationElectronicsRob is breaking stuff....


   
        
            
  
  2018   Tue Sep 29 12:47:08 2009 KojiUpdateMZMZ unlocked12:45 I started the work on MZ. Thus the
MZ was unlocked.
Found the bad connection on the FLKM
  
  2017   Tue Sep 29 10:44:29 2009 KojiUpdateMZMZ investigationRana, Jenne, Koji
Last night we checked MZ. The apparent
thing we found was the gain slider does not
  
  2016   Tue Sep 29 01:50:10 2009 robConfigurationLSCnew modulation frequenciesMode cleaner length measured tonight.
 
33196198
  
  2015   Mon Sep 28 23:44:18 2009 KojiOmnistructureSAFETYCrappy power outletJenne, Koji
Tonight we found that the wireless
for Martian network was down. 
  
  2014   Mon Sep 28 23:13:14 2009 JenneConfigurationElectronicsRob is breaking stuff....Koji and I were looking for an extender
card to aid with MZ board testing. 
Rob went off on a quest to find one. 
  
  2013   Mon Sep 28 17:39:34 2009 robUpdatePSLproblemsThe PSL/IOO combo has not been behaving
responsibly recently. 
The first attachment is a 15 day
 problems.pngproblems2.png 
  2012   Mon Sep 28 11:52:23 2009 JenneUpdateTreasureOAF screen added to the screenshots webpageI used Kakeru's instructions in elog 1221
to add the C1OAF screen (still called C1ASS_TOP)
  
  2011   Mon Sep 28 02:24:05 2009 ranaUpdateLockingMC1/3 Dewhitening found OFF: Turned back ONWhile trying to make the OAF work, I found
that the XYCOM switches for MC1/3 have been
set in the bad way for awhile. This means
 C1SUS_SRM_XYCOM1.pngUntitled.png 
  2010   Sun Sep 27 23:21:14 2009 ranaUpdatePSLSLOWscan result

    
        
  
  2009   Sun Sep 27 15:25:58 2009 KojiUpdatePSLSLOWscan resultOh, AMPMON dependence could be an artifact
of the ND filter???
For my case, it should be real dependence
 power_dependence.png 
  2008   Sun Sep 27 14:45:45 2009 KojiUpdatePSLSLOWscan resultI ran (script dir)/PSL/FSS/SLOWscan on
op440m from 11:30 to 12:30 on 27th. Although
Rana and later I myself set "timed bombs"
 SLOWscan_090927.pngPages_from_miser_126_manual.png 
  2007   Sun Sep 27 12:52:56 2009 ranaUpdateMOPAIncreasing the power from the MOPAThis is a trend of the last 20 days. After
our work with the NPRO, we have recovered
only 5% in PMC trans power, although there's
 Picture_3.png 
  2006   Sat Sep 26 13:55:20 2009 JenneUpdateMZMZ was locked in a bad placeI found the MZ locked in a bad place earlier
today.  It was locked in a similarly
bad spot yesterday after we fixed the cable
  
  2005   Fri Sep 25 19:56:08 2009 ranaConfigurationComputersNTPD restarted on c1dcuepics (to fix the MEDM screen times)[SIZE=3][FONT=Tahoma]restarted ntp on op440m
using this syntax[/FONT][/SIZE]
  
  2004   Fri Sep 25 19:55:59 2009 JenneUpdateAdaptive FilteringSubtraction of the microseism using Adaptive Filtering![Rana, Jenne]
The OAF system did something useful
today!  Attached is a plot.  Black
 OAF_running_WORKING_25Sept2009.png 
  2003   Fri Sep 25 17:51:51 2009 KojiUpdateMOPASolved (Re: Total MOPA power is constant, but the NPRO's power has decreased after last night's activities?)Jenne, Koji
The cause of the decrease was found
and the problem was solved. We found this
  
  2002   Fri Sep 25 16:45:29 2009 JenneUpdateMOPATotal MOPA power is constant, but the NPRO's power has decreased after last night's activities?[Koji, Jenne]
Steve pointed this out to me today,
and Koji and I just took a look at it together: 
 AMPMONconstant_126MONdown.jpg 
  2001   Fri Sep 25 16:10:17 2009 JenneUpdateAdaptive FilteringSome progress on OAF, but more still to be done[Jenne, Sanjit]
It seems now that we are able to
get the OAF system to do a pretty good job
 OAF_Running_25Sept2009.jpg 
  2000   Thu Sep 24 21:04:15 2009 JenneUpdateMOPAIncreasing the power from the MOPA[Jenne, Rana, Koji]
Since
  
  1999   Thu Sep 24 20:17:05 2009 ranaSummaryLSCComparison of Material Properties for the new RFPD Mounts
    

       
             
  
  1998   Thu Sep 24 19:35:20 2009 ranaHowToPhotos40m Google accountI've created a 40m Google account. Please
post all the 40m related photos to this site.
If you don't already have it, download Picasa
  
  1997   Thu Sep 24 15:45:27 2009 robUpdateIOOMC OLGI measured the mode cleaner open loop gain
with the HP3563A. 
  
  1996   Wed Sep 23 20:02:11 2009 JenneAoGComputersGremlins in the RFM

    
        
  
  1995   Wed Sep 23 19:36:41 2009 ranaUpdatePSLRC temperature performanceThis first plot shows the RC temperature
channels' performance from 40 days ago, before
we disabled the MINCO PID controller. Although
 Untitled.pngUntitled.pnge.png 
  1994   Wed Sep 23 17:32:37 2009 robAoGComputersGremlins in the RFMA cosmic ray struck the RFM in the framebuilder
this afternoon, causing hours of consternation. 
The whole FE system is just now coming back
  
  1993   Fri Sep 18 16:26:02 2009 steveSummaryPSLNeslab chiller is OKRob found puddles of water very close to
the chiller during lunch time. We raised
the unit and took the side cover off. All
  
  1992   Fri Sep 18 16:05:08 2009 JenneOmnistructurePSLwater under the laser chiller

    
        
  
  1991   Fri Sep 18 14:25:00 2009 robOmnistructurePSLwater under the laser chillerrob, koji, steve
We noticed some water (about a cup)
on the floor under the NESLAB chiller today. 
  
  1990   Thu Sep 17 15:05:47 2009 robUpdateComputersawgtpman on c1omc failing to start


   
        
            
  
  1989   Thu Sep 17 14:17:04 2009 robUpdateComputersawgtpman on c1omc failing to start[root@c1omc controls]# /opt/gds/awgtpman
-2 &
[1] 16618
  
  1988   Wed Sep 16 11:58:11 2009 JenneUpdateAdaptive FilteringNew Filters for Adaptive FilteringWhen Sanjit and I were looking at the adaptive
filtering system on Monday and Friday, we
noticed that turning on the Accelerometers
  
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