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ID Date Author Type Category Subject Text   7072   Wed Aug 1 17:04:22 2012 Jenne Update SUS spare SRMU 03 optic moved                                7755   Tue Nov 27 17:45:42 2012 Steve Update General spare optics of AP table moved to cabinet Spare optics from the AP table were moved to glass cabinet in the east arm. I'm not sure this is the right place. We'll see what      632   Thu Jul 3 16:18:51 2008 rob Summary Locking specgrams I used ligoDV to make some spectrograms of DARM_ERR (1), QPDX (2), and QPDY (3).  These show the massive instability from 30-40Hz      7517   Wed Oct 10 08:36:47 2012 Steve Update COC special mirror mounts holder                                1684   Thu Jun 18 23:08:46 2009 rob Update Locking spectrum Here's a noise spectrum of the RSE interferometer, in anti-spring mode, with RF readout.  I'd say the calibration is "loose."      6183   Tue Jan 10 00:09:33 2012 kiwamu Update LSC spike hunting in REFL33 [John / Kiwamu]  We tried to figure out what is causing spikes      6327   Mon Feb 27 19:04:13 2012 jamie Update CDS spontaneous timing glitch in c1lsc IO chassis? For some reason there appears to have been a spontaneous timing glitch in the c1lsc IO chassis that caused all models running      5371   Fri Sep 9 16:16:59 2011 kiwamu Update IOO spot positions on MC mirrors (in-vac) The spot positions on the MC mirrors were measured in the vacuum condition.      5373   Fri Sep 9 20:52:59 2011 kiwamu Update IOO spot positions on MC mirrors (in-vac) The spot positions on the MC mirrors were readjusted.      529   Wed Jun 11 11:45:25 2008 steve Update PSL ss trap works The trap works well at 3 W level.  No back reflected beam coming out of the trap on low power      1372   Mon Mar 9 10:59:05 2009 Alan Omnistructure Computers ssh agent on fb40m restarted for backup After the boot-fest, the nightly backup to Powell-Booth failed, and an automatic email got sent to me. I restarted the ssh      2081   Mon Oct 12 17:14:39 2009 rob Update Locking stability Last night, 2+ hour lock, probably broken by me driving too hard (DARM_EXC).      11708   Fri Oct 23 09:55:50 2015 Steve Update LSC stable days        8212   Sat Mar 2 05:53:15 2013 yuta Update LSC stable lock of PRMI I tuned alignment, gains and filters to achieve stable lock of PRMI. It now locks quite stably with UGF      8213   Sat Mar 2 14:52:02 2013 rana Update LSC stable lock of PRMI   Whereas the sensing matrix coefficients for ITMX/ITMY      5882   Sat Nov 12 02:46:13 2011 Den Update Adaptive Filtering stacks and ground We measured the coherence between the seismometer near the MC2 stack and accelerometers on the vacuum tank where MC2 is. Because accelerometers      3704   Wed Oct 13 09:35:41 2010 rana Update elog start script edited The existing elog restart script was running the kill process in the background using the '&' symbol before starting new elog      4311   Thu Feb 17 11:20:04 2011 josephb Update CDS start scripts no longer need sudo I've modified the rc.local file to run the IOC codes as controls, which means they no longer write root permission log files      4935   Sun Jul 3 21:18:06 2011 rana Update Computer Scripts / Programs statScreen scripts dead since Feb 4 / now revived This CSHRC mangling on Feb 4 did more than re-arrange FB binaries.      7497   Sun Oct 7 23:39:10 2012 Den Update Modern Control state estimation I've applied online state estimation technique using Kalman filter to LQG controller. It helps to estimate states that we do not measure.      7499   Mon Oct 8 09:51:30 2012 rana Update Modern Control state estimation    I guess that the estimated state has the same low pass filter, effectively,      7503   Mon Oct 8 12:34:52 2012 Den Update Modern Control state estimation                                6492   Fri Apr 6 10:31:07 2012 Den Update Adaptive Filtering static and adaptive I've run static and adaptive filters simultaneously. AA32 filters rotate the phase of the witness signals GUR1X and GUR1Y and now the performance      6493   Fri Apr 6 11:14:34 2012 Jenne Update Adaptive Filtering static and adaptive                                6491   Fri Apr 6 09:57:24 2012 Den Update Adaptive Filtering static starts to work I made static filter to work to evaluate the actuator TF.. Here is the result of static filtering:  7x    6296   Sat Feb 18 17:01:26 2012 Den Update Adaptive Filtering static variables In order to prevent different DOF from redetermining static variables in the adaptive code, I've created a separate code for each      3999   Tue Nov 30 16:02:18 2010 josephb Update CDS status Issues: 1) Turns out the /opt/rtcds/caltech/c1/target/gds/param/testpoint.par file had been emptied or deleted at one point,      3681   Fri Oct 8 17:35:24 2010 josephb Update CDS status of c1ioo, c1sus and rfm RFM is still not working.  I can see data on a filter just before it reaches the RFM sending code, but I see only      1302   Fri Feb 13 16:30:49 2009 steve Configuration General status quo is disturbed I have been getting ready for the annual safety inspection in the past 2-3 days. Meaning cleaning up and disturbing      4917   Thu Jun 30 03:26:40 2011 kiwamu Update ABSL status update Status update of the absolute length (ABSL) measurement:      4694   Wed May 11 22:52:55 2011 kiwamu Update LSC status update and plan Rana forced me to write this entry for summary because      6102   Sat Dec 10 05:27:43 2011 kiwamu Update Green Locking status update of the Y arm green lock Status update of the Y arm green lock:      6103   Sun Dec 11 17:28:36 2011 kiwamu Update Green Locking status update of the Y arm green lock                                4174   Thu Jan 20 04:43:28 2011 kiwamu Update Green Locking status update: PLL connected to ADC  I connected the PLL signal to the ADC on c1ioo.       4176   Thu Jan 20 15:15:39 2011 kiwamu Update Green Locking status update: PLL connected to ADC I realized that the black AA board I mentioned      7089   Mon Aug 6 10:53:32 2012 steve Update VAC status: vauum normal    The power outage did not have any effect on the vacuum system.  I      7682   Wed Nov 7 15:17:15 2012 Steve Update Alignment steering option with pico motor? We have two ready for vacuum 1.5" mirror mounts with pico motors in our hands.       9187   Thu Oct 3 00:01:59 2013 rana, jenne HowTo LSC steps to full IFO In moving now to full      9189   Thu Oct 3 01:18:57 2013 Koji HowTo LSC steps to full IFO I vote on PRMI+1arm -> PRFPMI      6678   Thu May 24 16:39:47 2012 steve Update General steve's webpage example 3 strip charts monitoring on 24 hours time scale: Vac,  PSL-IFO,  SUS and 10 channel video monitoring inside - outside       1777   Wed Jul 22 11:18:49 2009 rob Configuration Computers sticky sliders                                1359   Thu Mar 5 01:09:29 2009 rana, alberto Update DMF still not working We tried to run DMF on mafalda, but it didn't work. I tried to compile it using Rob's elog instructions.      12183   Wed Jun 15 11:21:51 2016 jamie Update CDS still work to do to transition to new configuration/code Just to be clear, there's still quite a bit of work to fully transition the 40m to this new system/configuration.  Once      4789   Mon Jun 6 17:28:31 2011 steve Update Computers still, no PEM channels                                5361   Wed Sep 7 18:19:37 2011 steve HowTo VAC stop pump down for overnight                                3854   Wed Nov 3 16:49:31 2010 steve Update General storage cabinet is in place The south end of IFO room 104 was reshuffled. The flow bench was moved all the way to the south end to create more room for the crane      6045   Tue Nov 29 22:19:26 2011 Den Update digital noise straight line  I tried to understand what part of the signal is corrupted while passing through a digital straight line without any filters.      4728   Mon May 16 17:11:28 2011 steve Update Electronics strain relieved 1X1 1X1 is strain relieved in the back. I will use similar approach on the rest of the racks .      4475   Thu Mar 31 11:30:51 2011 steve Configuration General strain relieved rf cables I strain relieved RF cables labeled 33 MHZ LO and 166 MHZ to EOM at 1X2  This is a temporary setup for the 11 MHZ      4036   Thu Dec 9 12:24:46 2010 kiwamu Update SUS strange ETMX suspension [Koji, Osamu and Kiwamu] We found that the ETMX free swinging spectra

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