H1 in Observe, one break which was not a change to H1, 3:18:51-3:20:19UTC, I clicked ETMY mode 11 FM4, thinking it would not change SDf, and it did, mode 11 gain was zero, so no change to H1.
TITLE: 02/14 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 119Mpc
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
SEI_CONF state: WINDY
Wind: 3mph Gusts, 2mph 5min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.41 μm/s
QUICK SUMMARY: Hi in Observe
TITLE: 02/14 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 118Mpc
INCOMING OPERATOR: Cheryl
SHIFT SUMMARY: One lock loss from what seemed to be the FSS, then we have two commissioning times after we reacquired.
LOG:
As a follow up on 54969 we are out of observing for 40 minutes with the squeezer off. We spent the first 20 minutes (20:07:40-20:28:00 UTC Feb 13th) at a DARM offset of 4.8pm which gave us 4.9mA of DCPD current. We went to a DARM offset of 13.9pm which gives us a current of 40.9 mA at 20:29:56 UTC and we will stay here until 20:50 UTC.
In the mean time I also loaded the noise mon calibrations that Chris posted here. I turned these filters on so that the noisemons should now be calirbated into units of DAC counts. screenshot of SDF accepts for the end stations is attached, the same was done for the ITMs.
No intervention necessary, but it lost lock 4 times in various places early in the acquisition sequence.
Went out of observing from 2004-2054UTC for planned commissioning.
No obvious cause.
The FSS started to oscillate about 150seconds 30seconds before we lost lock. During relocking we keep losing lock at various places and there is slight motion seen in the Ref Cav Trans spot.
The lock loss at 0714 UTC looks similar as well. Something is seen in that channel 45 seconds before.
Out from 1652 - 1653 UTC
I noticed the range dropping and then checked the Squeezer SHG Launch Power, & OPO REFL Power as Sheila suggested in alog54967. It was definitely getting noisy, so I recycled the SQZ_MANAGER and it looks better.
TITLE: 02/13 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 116Mpc
OUTGOING OPERATOR: Jim
CURRENT ENVIRONMENT: Lost lock transitioning to LARGE_EQ_NOBRSXY for earthquake in Japan. No major issues relocking.
SEI_CONF state: WINDY
Wind: 2mph Gusts, 1mph 5min avg
Primary useism: 0.05 μm/s
Secondary useism: 0.43 μm/s
QUICK SUMMARY:
08:29 UTC NLN.
08:31 UTC Observing. No SDF differences.
08:58 UTC GRB-Short
Set INJ_TRANS to INJECT_KILL
E363867
Fermi
Trigger ID 603277076
TRIGGER_DUR: 0.016 [sec]
Confirmed with LLO
Stand Down
10:40 UTC Set SEI_CONF to LARGE_EQ_NOBRSXY for 6.7 mag. earthquake in Japan. Lost lock.
Pausing at READY, waiting for earthquake.
11:20 UTC Set INJ_TRANS to INJECT_SUCCESS.
12:15 UTC Set SEI_CONF to WINDY.
12:21 UTC Starting relocking attempt.
12:28 UTC Lock loss from LOCKING_ALS. Waiting at READY again for ground motion to settle more.
13:06 UTC Starting another locking attempt.
13:14 UTC Lock loss from ACQUIRE_DRMI_1F.
13:19 UTC Pausing at CHECK_IR. Adjusting COMM and DIFF.
14:03 UTC NLN.
14:06 UTC Observing. No SDF differences.
15:47 UTC Tyler to high bay.
TITLE: 02/13 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 116Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
SEI_CONF state: WINDY
Wind: 2mph Gusts, 1mph 5min avg
Primary useism: 0.05 μm/s
Secondary useism: 0.43 μm/s
QUICK SUMMARY: 2 hours locked after the earthquake. Calm environment.
Attached is a plot showing systematic errors of the actuator kappas (kappa_T, kappa_P, kappa_U) caused by approximations we use to estimate them. These errors are induced by changes in the ratio of the time-dependent response function R(f_pcal1) / R(f_act_i), where f_pcal1 = 17.1 Hz is the frequency of the Pcal line that is close to the actuator lines, and f_act_i are the actuator lines (f_TST = 17.6 Hz, f_PUM = 16.4 Hz, f_UIM = 15.6 Hz). The ratio R(f_pcal1) / R(f_act_i) is approximated as constant in the calculation of the actuator kappas. The plot shows errors in the real and imaginary parts of kappa_TST, kappa_PUM, and kappa_UIM, as a function of kappa_TST and kappa_C, which have the most significant on them impact by far. The model used to produce this data is described in LHO aLOG 54269.
The plot can be found in the calibration SVN (revision 9423) here:
Plotting scripts for this can be found in the calibration SVN here:
Unlocked. Paused in READY waiting for a 7.0 magnitude earthquake in Japan to pass.
14:06 UTC Observing. No SDF differences.
TITLE: 02/13 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Jim
CURRENT ENVIRONMENT:
SEI_CONF state: WINDY
Wind: 8mph Gusts, 7mph 5min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.31 μm/s
QUICK SUMMARY: Attempting to relock.
08:31 UTC Back to observing. No SDF differences.
TITLE: 02/13 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Patrick
SHIFT SUMMARY:
LOG:
0:40 Observe
7:14 Lockloss, no obvious cause
TITLE: 02/12 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 120Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY: one lockloss
LOG:
H1 relocked on it's own, fully automated, one attempt that made it to NLN, with a DRMI to PRMI back to DRMI automated alignment adjustment.
Today TJ and I entered survey answers manually to record the one-attempt-back-to-NLN relock.
Sheila, Richard,
Filiberto and Richard installed new noise monitor circuits on the ETM PUMs last week, this morning I measured some transfer functions of them.
Attached are the dtt templates. Unfortunately I measured these TFs with the coil driver in state 3, which means that the low pass is on and the acq filter is off (the acq filter is after the noisemon pick off). In the digital noisemon filters I used the ANTILP filter zpk([0.4915;240.0583],[5.4697;21.8761],1,"n").
I'm also attaching the ITM measurements, which were taken in the same configuation 54614
The transfer function for ETMY LL seems significantly different from the rest. Richard and I set the test/coil enable to 0 (seting the driver into test mode, which means no input from DAC, I'm not sure what it means about terminating or floating inputs) and looked at spectra, and LL also looks different (3rd screenshot).
Richard is heading to the end station to check if there is something like a capacitor that wasn't swapped in that channel.
The EE team did find a bad solder joint in the ETMY LL channel, and repaired it before the end of maintence. Richard also re-ran the set of transfer functions for the noise monitors for EY, the attached file has his new set of measurements. The quadrants all seem to be the same now.
This ETMY measurement was taken with coil drivers in state 2, but the antiLP filter was on. That means that to compare these TFs to the others, we need to remove the filter zpk([0.4915;240.0583],[5.4697;21.8761],1,"n").
Attached are filters to calibrate the noisemon outputs in DAC counts.
They are designed by fitting the above-measured transfer functions (using IIRrational) and then inverting them. The antiLP filter was removed from the ETMY data. Poles at very low frequencies were nudged up to 1 Hz to limit the DC gain.
Attachment 1: plots of the data and fitted filters.
Attachment 2: filter install script
Thank you very much Chris.
I have just run this script and turned on the new filters, because we are out of observing for ~40 minutes of commisioning time. The new filters are turned on as of 20:22 UTC Feb 13, so the noise mon channels are all calibrated into DAC counts now.
