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  40m Log, Page 217 of 344  Not logged in ELOG logo
ID Date Author Typeup Category Subject Text Attachments
  9488   Wed Dec 18 13:34:03 2013 SteveUpdateGeneralLIGOX people40m crew and visitor Holger Muller from
  9489   Wed Dec 18 15:35:48 2013 SteveUpdatePEMexcess seismic noiseThis is not a test. Life can be dangerous
in the 40m Control  Room.
  9491   Wed Dec 18 18:45:39 2013 JenneUpdateLSCREFL 165 demod phasesI checked out the REFL165 demod phase,
and it looks like it was okay.  it was
-20.9 degrees.  I turned on my sensing
  9492   Thu Dec 19 03:29:34 2013 DenUpdateLSCCM servo test using yarm is completeKoji, Den

    lock yarm on IR, wire
  9494   Thu Dec 19 14:40:42 2013 KojiUpdateCDSRFM Time over mitigation for c1mcsI worked on the mitigation of c1mcs time-over
issue this afternoon.
  9496   Thu Dec 19 19:45:12 2013 ericqUpdateGreen LockingX-Arm Green PDH Loop StuffWith the fixed servo box, I remeasured the
OLTF, the servo, and the low pass filter
between the mixer output and servo input.
  9499   Fri Dec 20 01:24:11 2013 DenUpdateLSChigh bandwidth loop achieved for yarmKoji, Den
CM Servo with
  9500   Fri Dec 20 03:31:07 2013 KojiUpdateLSClock acquisition path for the CM servoup/down scripts are to be made
(Offset Edit on Dec 20 10:38PM)

  9501   Fri Dec 20 03:34:40 2013 KojiUpdateLSChigh bandwidth loop achieved for yarmThis
too huge offset difference with/without "BOOST"
switch should be checked.
  9504   Fri Dec 20 17:41:25 2013 SteveUpdateGeneralProjector - lightbulb replaced The lamp lasted for 4,622 hours.
This time I purchased just the bare
lamp itself . The housing doubles the price.
  9506   Fri Dec 20 20:04:01 2013 SteveUpdateVACpower supply replaced with a short vent


  9507   Fri Dec 20 22:45:02 2013 KojiUpdateLSChigh bandwidth loop achieved for yarmI checked the offset situation in the CM
servo boost circuit. 
- The offset voltage on the CM servo
  9508   Fri Dec 20 23:00:41 2013 KojiUpdateVACpower supply replaced with a short ventI'm leaving the 40m now. IFO is aligned. Everything
look good.
  9510   Sat Dec 21 10:53:35 2013 SteveUpdateVACpower supply replaced with a short vent-pumpdown completedThe recovery- pumpdown reached valve configuration 
vacuum normal at 20 hours, cc1 7.7e-6 Torr
  9514   Thu Jan 2 10:50:24 2014 SteveUpdateVAC vacuum monitor is still blank The date is correct on this monitor.
Last stored RGA scan data Dec 20,
  9515   Thu Jan 2 13:35:06 2014 KojiUpdateVAC vacuum monitor is still blankWe probably need to restart the machine,
but I didn't want to touch c1vac1 and c1vac2. 
  9521   Mon Jan 6 18:32:17 2014 RANAUpdateIOOMC1/3 kicked this morning at 8:30 The trend shows a big jolt to the
MC1/3 pointing this morning at 8:30.
Was anyone working
  9522   Mon Jan 6 20:52:09 2014 JenneUpdateIOOMC1/3 kicked this morning at 8:30When I got in this morning at 9-something
(9:45 maybe?), Steve was taking dust photos
on the AS table, of the MC Refl path. 
  9523   Mon Jan 6 22:11:46 2014 JenneUpdateLSCPRCL sideband locking still not so happy 
 The PRCL once again doesn't
want to lock on sidebands for me.  I
  9524   Tue Jan 7 10:44:13 2014 SteveUpdateIOOMC drift


  9525   Tue Jan 7 11:11:36 2014 ranaUpdateIOOMC drift 
 NOT drift. The sudden steps
are certainly the result of being kicked.
  9526   Tue Jan 7 16:41:08 2014 manasaUpdateIOOWFS moving MC suspensions


  9527   Tue Jan 7 17:16:04 2014 manasaUpdateIOOMC aligned


  9528   Tue Jan 7 20:57:41 2014 JenneUpdateIOOMC aligned[Rana, Jenne]
We turned off the WFS servos, and
looked at the MC REFL DC, and saw that it
  9529   Tue Jan 7 21:00:02 2014 JenneUpdateIOOIP POS, IP ANG alignedAfter locking the arms (after the MC alignment
work), Manasa and I aligned IP POS, IP ANG,
and both end transmission QPDs. 
  9530   Tue Jan 7 22:44:45 2014 JenneUpdateCDSdaqd on fb is segfaulting every ~30 secondsThe daqd process is segfaulting and restarting
itself every 30 seconds or so.  It's
pretty frustrating. 
  9531   Tue Jan 7 23:08:01 2014 jamieUpdateCDS/frames is full, causing daqd to die

  9532   Tue Jan 7 23:09:10 2014 manasaUpdateIOOMC aligned


  9533   Tue Jan 7 23:13:47 2014 jamieUpdateCDS/frames is full, causing daqd to die

  9534   Tue Jan 7 23:24:41 2014 JenneUpdateGeneralIFO plan, list o' things to doIt seems that
the most important short-term task we have
  9535   Tue Jan 7 23:50:27 2014 jamieUpdateCDS/frames space cleared up, daqd stabilizedThe wiper script is done and deleted a
whole bunch of stuff to clean up some space:

controls@fb ~ 0$ /opt/rtcds/caltech/c1/target/fb/wiper.pl
  9536   Tue Jan 7 23:53:35 2014 JamieUpdateCDSdaqd can't connect to c1vac1, c1vac2dadq is logging the following error messages
to it's log related to the fact that it can't
connect to c1vac1 and c1vac2:
  9538   Wed Jan 8 13:46:39 2014 JenneUpdateGeneralIFO plan, PRM baffle

  9540   Wed Jan 8 17:53:26 2014 manasaUpdateGeneralIFO plan, IPANG telescopeFor the IPANG telescope design, we are
in the 'beyond the Rayleigh range' regime.
So using a single lens to make the beam small
  9542   Thu Jan 9 10:34:58 2014 SteveUpdatePSLPSL pointing changes in pitch  IOO QPDs tested in dark, lighted
and open PSL enclosure. The created temperature
change 0.03 C has  effect on monitoring 
  9543   Thu Jan 9 17:21:45 2014 ranaUpdateGeneralIFO plan, IPANG telescope


  9545   Fri Jan 10 10:28:03 2014 SteveUpdatePSLPSL pointing changes  
I looked at IOO QPDs again. QPD_POS
was clamped by one screw. Dog clamp was added
  9547   Fri Jan 10 15:33:02 2014 SteveUpdatePSLlaser drift monitor set up idea


  9549   Mon Jan 13 11:08:48 2014 SteveUpdatePSL3 good days of IOO pointing Three good days of IOO pointing:
Friday, Sat and Sun    What
was changed?  May be the clamping on
  9550   Mon Jan 13 16:50:55 2014 SteveUpdateVACMaglev controller needs service


  9552   Tue Jan 14 10:12:12 2014 SteveUpdatePSLlaser drift monitor set up idea


  9553   Tue Jan 14 10:34:57 2014 SteveUpdatePSLgreen transmission measurmentGariLyn is using our green light on the
west side of the PSL table. The green PDA36As
were moved and the HEPA turned up to 60V
  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
  9558   Wed Jan 15 18:42:57 2014 JenneUpdateASCPOP ASC QPD offline for a few hours this afternoonI was in the lab, near the south end of
the ITMX oplev table, looking for something,
and I bumped the POP ASC QPD's power supply. 
  9559   Thu Jan 16 08:19:29 2014 SteveUpdatePEM4.4 and 3.8M local earth quakes


  9560   Thu Jan 16 21:38:13 2014 ericqUpdateLSCRepeat of PRC length measurement[ericq,Jenne]
Since we don't have agreement between
the measurements we made the other day and
  9563   Tue Jan 21 19:41:59 2014 JenneUpdateElectronicsRF distribution box power button failRana, Gabriele and I are trying to measure
the FSR of the PRC (elog about that later),
and we turned off the power to the RF generation
  9566   Wed Jan 22 16:36:45 2014 ericqUpdateElectronicsRF distribution box power button fail


  9567   Wed Jan 22 18:17:46 2014 JenneUpdateCDSfb timing was offSince this morning, the fb's timing has
been off.  Steve pointed it out to me
earlier today, but I didn't have a chance
  9568   Wed Jan 22 20:00:41 2014 JenneUpdateGeneralVENT GO!Steve, please begin
the vent!!
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