TITLE: 11/14 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Nutsinee
SHIFT SUMMARY: Have spent the majority of the shift alternating between trying to get the SRC to lock in initial alignment and trying to get DRMI to stay locked. I was able to get PRMI to lock stably, and DRMI would keep locking briefly, but only stayed locked once. When it did stay locked I tried moving around the SRM but it didn't seem to have much effect, and I don't think the signals got high enough for guardian to say the LOCK_DRMI_1F state was complete. I then noticed that guardian was complaining about a lost connection to a channel (I think it had trigger in the name), so I tried INIT to see if that would reconnect it. Unfortunately that broke the DRMI lock. I don't think the earthquakes have helped much either. Looking back in the alog, I saw Sheila's post about changing the SRCL FF. After trending back I changed the H1:LSC-SRCLFF1_SW1S and H1:LSC-SRCLFF1_SWSTAT back to what I think they were before she made the change. I don't think this has made any difference.

I restarted nuc5 and video4. Later in the shift the seismic trace on the lower screen disappeared. Yesterday it was the seismic plot on the upper screen that disappeared.

I had to restart OAF once.

The earthquakes have rung down.
LOG:

16:59 UTC Restarted nuc5 (twice) and video4. Apparently the televisions turn off and stay off when nuc5 is restarted?
17:19 UTC IMC is not locking
18:19 UTC Toggled the PSL noise eater switch. Used LLO operator for buddy system since no one else was here.
18:28 UTC Changed the ISI configuration from EARTH_QUAKE_V2 to WINDY
18:51 UTC Cleared history on all IMC WFS DOF. IMC locked immediately. Getting notifications of IMC WFS not centered.
18:59 UTC The ALS X arm is locked on green but the transmission is only around .9. I could try moving TMS but I think I should do an initial alignment.
SRC is not locking in initial alignment. Each time I take it to down to try again the SRM and HAM5 ISI trip.
20:22 UTC Giving up on SRC alignment for now. Going to skip and try to lock DRMI.
20:57 UTC I can get the PRC to lock stably. DRMI will lock briefly but not hold.
21:14 UTC Trended back SRM alignment sliders. They seemed to change substantially 5 hours or so ago. Moving them to match and retrying SRC initial alignment.
22:16 UTC OAF glitch. Restarted with script.
23:10 UTC Trying initial alignment again.
23:24 UTC SRC still won't lock
23:49 UTC Trying to see if undoing the changes I believe Sheila made to the SRCL FF will help:
patrick.thomas@operator0:~$ caput H1:LSC-SRCLFF1_SW1S 17668
Old : H1:LSC-SRCLFF1_SW1S            16708
New : H1:LSC-SRCLFF1_SW1S            17668
patrick.thomas@operator0:~$ caput H1:LSC-SRCLFF1_SWSTAT 300652
Old : H1:LSC-SRCLFF1_SWSTAT          300652
New : H1:LSC-SRCLFF1_SWSTAT          300652
This does not appear to help.

Currently at the Align SRM stage of initial alignment. I have attempted to lock the SRC multiple times without success. Still investigating but running out of ideas.

It appears to be coincident with noise in the FSS (see attached plot). It may be that the IMC feeds back to the FSS though?

TITLE: 11/13 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Aligning
INCOMING OPERATOR: Patrick
SHIFT SUMMARY: Purring along until the lockloss from a large earthquake. It took a while to ring down with many aftershocks. I just finished initial alignment and starting to lock again, but things are still shakey.
LOG:

• 08:10 OAF crash and restart
• 08:34 Observing
• 08:47 PI mode 3 phase changed from 0 to +50
• 10:02 OAF crash
• 10:21 Observing
• 10:22 OAF crash (2x)
• 10:34 OAF crash (2x)
• 11:17 Lockloss, 7.8 EQ New Zealand
• 14:49 OAF crash (2x)

7.8M Earthquake in New Zealand. Terramon still hasnt reported it. I put the SEI_CONF to Earthquake V2 but platforms are still tripping, it may be a bit before locking can happen again.

TOday I did another round of noise budget measurements at 30Watts input power with the IMC DOF4P alinged to minize the jitter peak at 260Hz.  I don't have a plot ready but got measurements for the standard things but not frequency noise.  I thought that the noise from 20-40 Hz was mostly explained, and that we could gain some range by improving there, but there must be an additional noise source at those frqeuencies.  

• The difference between our range and Livingston's best mostly comes from between 20-40Hz.  The first attachement shows the range integrand difference between the two reference curves, this was made using code from Grant meadors several years ago. (The absoulte range number might not agree with other calculations, but it gives us the right idea).   The second attachment shows the cumulative range integrand (we get most of our range below 100Hz). The first set of noise measurements I did indicated that SRCL, CHARD P and CHARDY were all within a factor of 2-3 of DARM at these frequencies, so I decided to try working on them. 

• SRCL FF-  I changed back to Jenne's JFF filter, which does better at low frequencies than the split feedforward can.  This is in the guardian now with a gain of -0.7.  The third attached screenshot shows the improvement at low frequencies when there is a SRCL excitation on, and a small penalty at around 100 Hz.I also made a PRCL excitation before and after retuning this (4th attachment). 
• CHARD both P+Y were adding a similar level of noise at 20-30 Hz.  (Stefan just made the cut offs more agressive last week, (31298)).  I lowered the gain of CHARD Y by 3db (not it is -0.1) and added and even more agresive cut off. I also lowered the gain of CHARD Y by about 3dB (from -0.14 to -0.1) and made the ELP10 cut off more agressive.  

So now SRCL and both CHARD control noises should be at least a factor of 5 or more below DARM around 30Hz, but the DARM noise hasn't improved, so there must be another noise source there.  I checked MICH ASC (P is not a problem except maybe at 18Hz, yaw could be limiting us at 20Hz but not 30Hz), and PRC2 ASC (the loop from REFL WFS to PR3) which is not a problem. 

TITLE: 11/13 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Noise tunings
INCOMING OPERATOR: Nutsinee
SHIFT SUMMARY: Had to restart OAF twice. Had to damp PI modes 3, 27 and 28. Two tours came through the control room. Had some possible misunderstanding about the BRS. At end Y it went into damping and so Sheila and I moved the configuration there to BLEND_Quite_250_SC_useism. I later talked with Jim on the phone and he said it should be fine to use the BRS while it is damping as long as the velocity is not on the order of 5000 counts or so. We are currently stopped at noise tunings at Sheila's request. 
LOG:

Inheriting IFO in observing at NLN (30W). ISI config is at WINDY.

16:35 UTC Diag reset of H1SUSITMPI
16:36 UTC Diag reset of H1OMC
16:37 UTC Diag reset of H1IOPOAF0
16:40 UTC OAF glitch. Restarting with script. Automatically taken out of observing.
16:48 UTC OAF back. Ran 'Press All Diag Reset Buttons' and 'DAQ Clear Accumulated CRC'.
16:50 UTC Clicked on observing. Could not go to observing because TCS_ITMY_CO2 node is at FIND_LOCK_POINT instead of LASER_UP.
16:52 - 17:07 UTC Stepped out. Came back and mode 3 was slowly ringing up. Changed sign of gain.
17:13 UTC Set gains of all PI modes except 3, 26, 27 and 28 to 0 per Terra's alog request.
17:20 UTC Set to observing.
18:32 UTC Earthquake plots on top monitor of nuc5 just disappeared. Bottom seismic plots and RF spectra are still updating.
18:43 UTC Restarted earthquake plots. Strangely I could not do this from vncviewer. Typing in the terminal produced capitals. Setting caps lock on produced lower case, however with or without caps lock on the slashes in the directory path I entered turned into question marks. Used the keyboard and mouse already attached and ran 'dmtviewer /home/controls/Seismic_FOM_STS.xml' in the existing terminal as per the wiki instructions.
20:16 - 20:22 UTC Stepped out. Came back and ITMX, ITMY, ETMX and ETMY were saturating. Started saturating at 20:21:55 and stopped at 20:22:10. Bit of a spike in the 0.03 - 0.1 Hz seismic trace at end Y.
20:47 UTC Another burst of saturations.
20:49 UTC OAF glitch. Taken out of observing by TCS node. Restarted OAF using script. Ran 'Press All Diag Reset Buttons' and 'DAQ Clear Accumulated CRC'.
21:06 UTC Went to set to observing mode and noticed that the BRS at end Y is in the damping state. Trending back it has been damping since 20:43:18 UTC. Since this does not seem to prevent me from hitting the observing bit, I am. Well, I was. Just dropped back to commissioning by TCS ITMY CO2 node.
21:18 UTC More glitches.
21:22 UTC Damped mode 3. Changed end Y ISI to BLEND_Quite_250_SC_useism
21:50 UTC Lock loss
21:54 UTC Set ISI at end Y back to BRS. It did not want to go back, 'waiting for BRS to settle'. Eventually enough different guardian clicks seemed to work.
22:25 UTC PRMI to DRMI transition succeeded
22:49 UTC Stopping at Noise Tunings. Sheila dithering PR3 to measure WFS response.
23:07 UTC Damped mode 27 by changing phase
23:09 UTC Damped mode 28 by changing phase
23:12 UTC Redamped mode 27
23:13 UTC Sheila switching PRC2 Pitch. Lock loss. SUS and ISI tripped at end Y.
23:43 UTC PRMI to DRMI transition succeeded
00:02 UTC Stopping at Noise Tunings again

Locked at NLN since beginning of shift. Currently in observing mode.

Had to restart OAF once. Damped PI mode 3 once. All gains for PI modes except 3, 26, 27 and 28 are set to 0 per Terra's request.

TITLE: 11/12 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 69 Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY: 14 hour lock, OAF crashed 4 times in about a span of an hour, but then that was it. I did not turn the gains off for the PIs because I didnt have any ring up, besides a very slow mode 3 once, and I didnt want to mess anything up for this long lock. Dust counts have set off alarms for EX, CS, and PSL as soon as the wind picked up, might be slowly settling now but it would be good to keep an eye on them.
LOG:

• 09:48 Observing
• 11:28 Out of Observing. OAF crashed, it took two restarts to get it happy
• 11:49 Restarting OAF again
• 11:55 GRB
• 12:04 Restarting OAF
• 12:40 Out of Observing. TCSX grd finding a new lock point
• 12:45 Observing

9.5 hour lock at 68Mpc. We have been observing since 09:48, but just now the OAF crashed and it took 2 restarts to get it going again.

Sheila and Daniel pointed out that we could try using the uncontrolled IMC degree of freedom to mimic the WFS offset, without actually misaligning the cavity.  I was able to do this for pitch, but was unsuccessful for yaw.  Also, I didn't seem to affect the PZT excitation much, but I did get rid of much of the 260 Hz peak. 

To DC couple the ISS, I held the output of the 2nd loop:  H1:PSL-ISS_SECONDLOOP_AC_COUPLING_DRIVE hold switch on. 

In the end, I have an offset in H1:IMC-DOF_4_P_OFFSET of -240.  I tried offsets for the equivalent yaw from -200 to +250, and never saw a noticeable change in the ~150 Hz peak, ~350 Hz peak, or my PZT yaw excitation.  The input to both DOF4's is off, no filter modules are engaged, and the filter modules have a gain of 1. These settings are accepted in SDF. 

In the attached screenshot, Ref0 in green is with no offsets, but a pitch excitation on the PSL PZT from 400-450Hz.  The live red trace is about half an hour after tuning the offset, so the offset still seems pretty good, although it's very slightly worse than the very best.  The difference is almost imperceptible in the spectrum though, so I'm not worried about it.

The IMC WFS aren't as well centered now as they normally are, so at some point we should go in and center them.  Since I have never been on the table where the WFS are, I'm not going to do this right now. 

This is the output of the move monitor script.  I modified a version for myself slightly such that it is looking at the OSEM witnesses, so these are different numbers than what Sheila has been reporting. 

START:
SUS-MC1_M1 -77.7139982167 -1402.28670285
SUS-MC2_M1 621.824242608 -413.66036576
SUS-MC3_M1 -295.471270998 -1542.00494924
SUS-IM1_M1 182.246573766 1119.70220065
SUS-IM2_M1 606.630602164 -207.775211709
SUS-IM3_M1 1934.44031578 150.121067417
SUS-IM4_M1 -3856.74268732 -393.785840775
SUS-PR3_M1 -814.949561082 234.55559486
SUS-PR2_M1 2282.16934135 3242.24543291
SUS-PRM_M1 -1409.3910444 385.240469094
SUS-SR3_M1 -99.7398765539 587.461403381
SUS-SR2_M1 2972.21277609 317.397060269
SUS-SRM_M1 -1729.03418399 1251.99422647
SUS-ITMX_M0 344.119433308 -16.9095533593
SUS-ITMY_M0 996.548899622 83.349298391
SUS-ETMX_M0 -43.4443293476 12.7830931998
SUS-ETMY_M0 -113.192781573 -74.8803343133
SUS-BS_M1 418.802101563 -304.67337983

PIT: SUS-MC1_M1 -84.4985341486
PIT: SUS-MC2_M1 6.57551296647
PIT: SUS-MC3_M1 84.6476471949
PIT: SUS-IM1_M1 0.176299200236
PIT: SUS-IM2_M1 0.159609803854
PIT: SUS-IM3_M1 0.0532221860708
PIT: SUS-IM4_M1 -2.72033242382
PIT: SUS-PR3_M1 -0.482648507537
PIT: SUS-PR2_M1 -4.51434128357
PIT: SUS-PRM_M1 -2.14778485358
PIT: SUS-SR3_M1 -0.307467265582
PIT: SUS-SR2_M1 1.69735082572
PIT: SUS-SRM_M1 -4.77278126446
PIT: SUS-ITMX_M0 0.266663186344
PIT: SUS-ITMY_M0 0.50801149203
PIT: SUS-ETMX_M0 1.04999779019
PIT: SUS-ETMY_M0 0.445617164846
PIT: SUS-BS_M1 1.27672698516

YAW: SUS-MC1_M1 0.762530780343
YAW: SUS-MC2_M1 0.684821504178
YAW: SUS-MC3_M1 -1.60849376182
YAW: SUS-IM1_M1 -0.0294054532108
YAW: SUS-IM2_M1 0.322776681474
YAW: SUS-IM3_M1 0.103454831846
YAW: SUS-IM4_M1 1.48293048173
YAW: SUS-PR3_M1 -0.150923145111
YAW: SUS-PR2_M1 -0.0132833502485
YAW: SUS-PRM_M1 0.341160068319
YAW: SUS-SR3_M1 0.243808779206
YAW: SUS-SR2_M1 -1.30058543927
YAW: SUS-SRM_M1 0.199403791284
YAW: SUS-ITMX_M0 -0.139022372494
YAW: SUS-ITMY_M0 0.105286976283
YAW: SUS-ETMX_M0 0.201915126583
YAW: SUS-ETMY_M0 0.160323724745
YAW: SUS-BS_M1 -0.0897574699579