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  40m Log, Page 325 of 330  Not logged in ELOG logo
ID Date Author Typedown Category Subject Text Attachments
  12200   Mon Jun 20 11:11:20 2016 SteveConfigurationCDSGPS receiver not resetting properlyI called https://www.endruntechnologies.com/pdf/USM3014-0000-000.pdf 
and they said it's very likely just needs
a software update. They will email Jamie
  
  12201   Mon Jun 20 11:19:41 2016 jamieConfigurationCDSGPS receiver not resetting properly


  
  12202   Mon Jun 20 14:03:04 2016 jamieConfigurationCDSEndRun GPS receiver upgraded, fixedI
just upgraded the EndRun Technologies Tempus
LX GPS receiver timing unit, and it seems
 GPSreceiverWorking.jpg 
  12376   Thu Aug 4 17:57:09 2016 KojiConfigurationGeneralDon't restart apache2 - nodus /etc/apache2/sites-available/* accidentally deleted Late coming elog about the deletion
of the apahce config files


Thu Aug 4 8:50ish
  
  12558   Thu Oct 13 14:49:57 2016 KojiConfigurationPEMXLR(F)-XLR(M) cable took from the fibox to the Blue microphone[Gautam Koji]

XLR(F)-XLR(M) cable for the blue
microphone is missing. Steve ordered one.
  
  12598   Thu Nov 3 16:30:42 2016 LydiaConfigurationSUSETMX to coil matrix expanded[ericq, lydia]

Background: 

We believe the optimal OSEM damping
 01.png 
  12721   Mon Jan 16 12:49:06 2017 ranaConfigurationComputersMegatron updateThe "apt-get update" was failing
on some machines because it couldn't
find the 'Debian squeeze' repos,
  
  12724   Mon Jan 16 22:03:30 2017 jamieConfigurationComputersMegatron update


  
  12825   Mon Feb 13 17:19:41 2017 yinziConfiguration configuring ethernet for raspberry piGautam and I were able to get the Raspberry
Pi up and running today, including being
able to ssh into it from the control room.
 Screen_Shot_2017-02-13_at_5.11.52_PM.png 
  12878   Thu Mar 9 20:38:19 2017 ranaConfigurationIOOMC lock acquisition settings changed; no more HOM locksThe MC was sort of misaligned. It was locking
on some vertical HOMs. So I locked it and
aligned the suspensions to the input beam
  
  12935   Mon Apr 10 15:22:46 2017 ranaConfigurationWikiDokuWikis are back upAIC Wiki updated
to latest stable version of DokuWiki: 
  
  12943   Thu Apr 13 21:01:20 2017 ranaConfigurationComputersLG UltraWide on Rossawe installed a new curved 34" doublewide
monitor on Rossa, but it seems like it has
a defective dead pixel region in it. Unless
 LG34c.jpgcrack.jpg 
  12965   Wed May 3 16:12:36 2017 johannesConfigurationComputerscatastrophic multiple monitor failuresIt seems we lost  monfight.jpg 
  12966   Wed May 3 16:46:18 2017 KojiConfigurationComputerscatastrophic multiple monitor failures- Is there any machine that can handle
4K? I have one 4K LCD for no use.
- I also can donate one 24" Dell
  
  12971   Thu May 4 09:52:43 2017 ranaConfigurationComputerscatastrophic multiple monitor failuresThat's a new failure mode. Probably
we can't trust the power to be safe anymore.

Need Steve to order a couple
  
  12978   Tue May 9 15:23:12 2017 SteveConfigurationComputerscatastrophic multiple monitor failuresGautam and Steve,

Surge
protective power strip was install on
 Trip-Lite.jpg 
  12993   Mon May 15 20:43:25 2017 ranaConfigurationComputerscatastrophic multiple monitor failuresthis is not the right one; this Ethernet
controlled strip we want in the racks for
remote control.
  
  13009   Tue May 23 18:09:18 2017 KaustubhConfigurationGeneralTesting ET-3010 PDIn continuation with the previous(ET-3040
PD) test.

The ET-3010 PD requires to be fiber
  
  13070   Fri Jun 16 18:21:40 2017 jigyasaConfigurationCamerasGigE camera IP One of the additional GigE cameras has been
IP configured for use and installation. 

Static IP assigned to the camera-
  
  13160   Wed Aug 2 15:04:15 2017 gautamConfigurationComputerscontrol room workstation power distributionThe 4 control room workstation CPUs (Rossa,
Pianosa, Donatella and Allegra) are now connected
to the UPS.
  
  13440   Tue Nov 21 17:51:01 2017 KojiConfigurationComputersnodus post OS migration adminThe post OS migration admin for nodusa
bout apache, elogd, svn, iptables, etc can
be found in https://wiki-40m.ligo.caltech.edu/NodusUpgradeNov2017
  
  13442   Tue Nov 21 23:47:51 2017 gautamConfigurationComputersnodus post OS migration adminI restored the nodus crontab (copied over
from the Nov 17 backup of the same at /opt/rtcds/caltech/c1/scripts/crontab/crontab_nodus.20171117080001.
There wasn't a crontab, so I made one
  
  13445   Wed Nov 22 11:51:38 2017 gautamConfigurationComputersnodus post OS migration adminConfirmed that this crontab is running
- the daily backup of the crontab seems to
have successfully executed, and there is
  
  13461   Sun Dec 3 05:25:59 2017 gautamConfigurationComputerssendmail installed on nodus Pizza mail didn't go out last weekend
- looking at logfile, it seems like the "sendmail"
service was missing. I installed sendmail
  
  13462   Sun Dec 3 17:01:08 2017 KojiConfigurationComputerssendmail installed on nodus An email has come at 5PM on Dec 3rd.

 
  
  13504   Fri Jan 5 17:50:47 2018 ranaConfigurationComputersmotif on nodusI had to do 'sudo yum install motif'
on nodus so that we could get libXm.so.4
so that we could run MEDM. Works now.
  
  13505   Fri Jan 5 19:19:25 2018 ranaConfigurationSEIBarry Controls 'air puck' instead of 'VOPO style' breadboardWe've been thinking about putting in
a blade spring / wire based aluminum breadboard
on top of the ETM & ITM stacks to get
 mm_slm.jpgScreen_Shot_2018-01-05_at_7.25.47_PM.png 
  13524   Wed Jan 10 14:17:57 2018 johannesConfigurationComputer Scripts / Programsautoburt no longer making backupsI was looking into setting up autoburt
for the new c1auxex2 and found that it stopped
making automatic backups for all machines
  
  13525   Wed Jan 10 15:25:43 2018 johannesConfigurationComputer Scripts / Programsautoburt making backups again


Quote:


  
  13526   Wed Jan 10 16:27:02 2018 SteveConfigurationSEIload cell for weight measurementWe could use similar
load cells   to make the actual
weight measurement on the Stacis legs. This
 stacis3LoadCells.png 
  13539   Fri Jan 12 12:31:04 2018 gautamConfigurationComputerssendmail troubles on nodus I'm having trouble getting the sendmail
service going on nodus since the Christmas
day power failure - for some reason, it 
  
  13540   Fri Jan 12 16:01:27 2018 KojiConfigurationComputerssendmail troubles on nodus I personally don't like the idea of
having sendmail (or something similar
like postfix) on a personal server as it
  
  13542   Fri Jan 12 18:22:09 2018 gautamConfigurationComputerssendmail troubles on nodus Okay I will port awade's python mailer
stuff for this purpose.

  
  13545   Sat Jan 13 02:36:51 2018 ranaConfigurationComputerssendmail troubles on nodus I think sendmail is required on nodus since
that's how the dokuwiki works. That's
why the dokuwiki was trying to send an email
  
  13546   Sat Jan 13 03:20:55 2018 KojiConfigurationComputerssendmail troubles on nodus I know it, and I don't like it. DokuWiki
seems to allow us to use an external server
for notification emails. That would be the
  
  13555   Wed Jan 17 23:36:12 2018 johannesConfigurationGeneralAS port laser injectionStatus of the AS-port auxiliary laser injection


Auxiliary laser with AOM
setup exists, first order diffracted beam
 PSLbeat.svg.pngASpath.svg.png 
  13570   Tue Jan 23 16:02:05 2018 SteveConfigurationSEIload cells1500 and 2000 lbs load cells arrived from
MIT to measure the vertical loads on each
leg.
 stacis3LoadCells.pngDSC00025.JPGDSC00026.JPG 
  13681   Tue Mar 13 20:03:16 2018 johannesConfigurationComputersc1auxex replacementI assembled the rack-mount server that
will long-term replace c1auxex, so we can
return the borrowed unit to Larry.
 IMG_20180313_105154890.jpgIMG_20180313_133031002.jpg 
  13682   Wed Mar 14 23:58:30 2018 johannesConfigurationComputersc1auxex replacementI replaced the borrowed server with the
permanent one today. Before Removing the
current server, Before, I performed several
  
  13687   Mon Mar 19 14:39:09 2018 johannesConfigurationComputersc1auxex replacement[gautam, johannes]

The temperature control output
channel for the XEND seismometer wasn't
  
  13742   Mon Apr 9 23:28:49 2018 johannesConfigurationDAQc1psl channel listI made a list of all the physical c1psl
channels to get a better idea for how many
acromags we need to replace it eventually.
  
  13761   Wed Apr 18 17:15:35 2018 ranaConfigurationComputersNODUS: no xmgrace for dataviewerTurns
out, there is no RPM for XmGrace on Scientific
Linux 7. Since this is the graphic output
  
  13764   Wed Apr 18 22:46:23 2018 johannesConfigurationGeneralAS port laser injectionUsing Gautam's Finesse file and the
cad files for the 40m optical setup I propagated
the arm mode out of the AS port. For the
 ASpath.svg.pngpower_out_fluctuation_DC.pngpower_out_fluctuation_AC_zoom.png 
  13766   Thu Apr 19 01:04:00 2018 gautamConfigurationGeneralAS port laser injectionFor the arm cavity ringdowns, I guess we
don't need AS55/AS110 (although I think
the camera will still be useful for alignment).
  
  13772   Thu Apr 19 20:41:09 2018 KojiConfigurationGeneralAux Laser LD dying? (AS port laser injection)I suspect
that the LD of the aux laser is dying.
- The max power we obtain from this
 Aux_laser_adj_Pout.pdfAux_laser_RIN.pdf 
  13781   Tue Apr 24 08:36:47 2018 johannesConfigurationGeneralAux Laser LD dying? (AS port laser injection)In September
2017 I measured ~150mW output power,
which was already kind of low. What are the
  
  13784   Tue Apr 24 11:31:59 2018 gautamConfigurationALSProposed changes to EX fiber couplingMotivation:
I want to make another measurement of the
 EX_fiber_MM.pdfEX_fiber_changes.png 
  13786   Tue Apr 24 18:54:15 2018 gautamConfigurationALSProposed changes to EX fiber couplingI started working on the EX table. Work
is ongoing so I will finish this up later
in the evening, but in case anyone is wondering
  
  13789   Wed Apr 25 19:09:37 2018 gautamConfigurationALSNew look EX Fiber couplingSummary:

I implemented most of the things
outlined in my previous elog.
 EX_fiber_MM.pdfIMG_6977.JPGIMG_6972.JPGIMG_6974.JPGIMG_6976.JPG 
  13791   Thu Apr 26 11:24:50 2018 gautamConfigurationALSNew look EX Fiber coupling - pol stabilityHere is a first look at the overnight stability.
For the temperature, I used the calibration
I found in the old psl database file, seems
 polStab.pdf 
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