TITLE: 11/20 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 6mph Gusts, 4mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.30 μm/s 
QUICK SUMMARY: Locked for 6 hours but it looks like the squeezer has an issue. Working on it now. Dust alarm in the diode room, but other than that, no alarms overnight.

Since I saw H1 was locked, I started the full magnetic injection suite (49 injections total over the 7 coils across site) at 05:40 UTC using the PEM_MAG_INJ Guardian. This dropped H1 out of observing, but it should return to observing once the injections finish. The suite will finish in roughly 2 hours or if the IFO loses lock, whichever comes first. I'll check things later tonight in case this poses any issues.

TITLE: 11/20 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY: PEM measurements were running smoothly until a lockloss @ 01:28 UTC. Since H1 is having a bit of trouble getting relocked (locklosses during LASER_NOISE_SUPPRESSION and DRMI) for reasons I'm unsure of, I've set things to run overnight the same as last night, with H1_MANAGER attempting to keep H1 up but not call for help. I've also set Sheila's SQZ angle stepper script to start at 09:00 UTC (01:00am PST) running on cdsws39 with the hope that H1 is locked.
LOG:

TITLE: 11/20 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 9mph Gusts, 6mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.33 μm/s 
QUICK SUMMARY: H1 has been locked for about 30 minutes and PEM measurements are ongoing.

• Wind is low, microseism slowly dropping and below the 90th percentile
• All other systems nominal

TITLE: 11/20 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY: Currently at low noise, PEM characterization all day and one SQZ measurement started. There was one lock loss during the shift caused by us trying to move the corner station sensor correction off while in lock to allow Robert and a UW visitor look at the ITMY seismometer. Didn't work. Relocking was an initial alignment and then waiting at DRMI while we still had SC off, but all auto. 
LOG:

• 2206 Lock loss - we tried to turn off sensor correction in a way that would allow Robert and a UW visitor to access the bier garten seismometer.
• 2357 Nominal low noise                                                                                                                                

Jonathan and Yuri

This is a continuation of WP 12886.  This is the last physical step in the control room/MSR  for the reconfiguration.  We ran a fiber from the warehouse patch pannel to h1daqdc0 and replaced the network card with a newer card.  We will be renaming h1daqdc0, likely to h1daqkc0 (daqd kafka connector), and converting it to send the IFO data into the LDAS as part of the NGDD project.

Next steps on this work is to work on the software setup, and to install the corresponding fiber patch in the LDAS room.

Checking the safe SDF settings for the LSC and ASC model.

ASC model not monitored channels here. No outstanding SDF diffs while unlocked

LSC model not monitored channels here. Also no outstanding SDF diffs while unlocked.

ASCIMC has no unmonitored channels. No safe diffs with IFO unlocked.

I've ran a few different huddle test with the new TemTop dust monitors against 3 different MetOne GT521s. The first tests I ran in the Optics lab and Diode room showed some discrepancies between the spike times but that could be due to a difference in sample times vs the two dust monitors. The PMS21 and GT521s both sample for 60 seconds then hold for 300s, but the PMD331 does not have a built in hold time so it samples continuously or manually. The PMS21 usually reads an order of magnitude or two lower than the other two which makes me wonder if it needs a scale factor, but it also sees these big spikes occasionally that the others don't see which is confusing. The flow rate is listed as being 0.1 CFM on the PMS21, but the GT521s and the PMD331 are also listed as having flow rates of 0.1 CFM. CFM = Cubic feet / minute, its also = 2.83 L/min which is what I read when running the flow test on all of the DMs. *Also the times do not account for daylight savings, so each y-axis timestamp is actually an hour behind the actual PST*.

Test 1 - Optics Lab:

I tested the TemTops one at a time in the Optics lab, the results of the PMD331 and the results of the PMS21. 

Test 2 - Diode Room:

I tested the TemTops at the same time in the Diode room, I started off with only the PMS21 then I added the PMD331. For only the PMS21 we saw the these counts, for only the PMD331 we saw these counts, and for both of them we saw these counts,all against a MetOne GT521s. 

Test 3 - Control Room:

I tested three dust monitors at the same time in the control room ( I grabbed a spare pumped GT521s from the storage racks by the OSB receiving, it's our last properly working spare). I did a day of samples with holds enabled and a day of continuous sampling. When the dust monitors were sampling at slightly different intervals we saw the peaks offset from each other such as at 11-18 ~07:00 PST at the right of the plot. During the continuous testing we can see the peaks from everyone coming into the control room for the end of O4 celebration, I'm not sure why there's some time between the peaks, zooming in on this plot to cut out the large peaks from said celebration we can see the PMD331 and the MetOne GT521s following each other pretty closely, but the PMS21 wasn't really reading  much, there are small bumps around where the peaks from the other DMs are. Adding a scale factor of 10 to the PMS21 counts yield a better looking plot, playing with the scale factor till the PMS21 counts looked more in-line with the other DMs I got to a scale factor of 40 to get this plot.

In breaks in the PEM work this morning I improved the script I used last night so that I don't have to do as many things by hand.  The script is in sheila.dwyer/SQZ/automate_dataset/SQZ_ANG_stepper.py, I'll try to clean it up a bit more and add to userapps soon.  

It's running now and will take 5 minutes of no sqz time, and do the steps needed to measure nonlinear gain (it doesn't give a result, but some times that can be looked at later).  Then it takes some angle steps in 10 degree steps on the steep side of the elipse and 30 degree steps on the slow side of the elipse (where SQZ angle changes slowly with demod angle).  

This current version should take 1 hour to take 3 minutes of data at each point, or 1.5 hours for 4 minutes of data.  

It's now running for FDS with nominal psams settings, this can be aborted if PEM wants to do injections before it's over. 

Wed Nov 19 10:09:29 2025 INFO: Fill completed in 9min 25secs

FRS36084 Dave, TJ:

TJ discovered that some HWS SLED settings were being monitored by multiple slow-SDF systems (h1syscstcssdf and h1tcshwssdf). The former's monitor.req is computer generated, the later's is hand built.

There were 4 duplicated channels: H1:TCS-ITM[X,Y]_HWS_SLEDSET[CURRENT,TEMPERATURE]

I removed these  channels from tcs/h1/burtfiles/h1tcshwssdf_[monitor.req, safe.snap, OBSERVE.snap] and restarted the psudo-frontend h1tcshwssdf on h1ecatmon0 at 09:00 Wed 19nov2025 PST. The number of monitored channels dropped from 64 to 60 as expected.

I did a full scan of all the monitor.req files and confirmed that there were only these 4 channels duplicated.

I'll add a check to cds_report.py to look for future duplications.

TITLE: 11/19 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 4mph Gusts, 3mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.39 μm/s 
QUICK SUMMARY: Locked for 13 hours, but it looks like we just got into observing 45min ago due to an SDF diff. Lights are on at MY, Y_BT AIP still in error as mentioned in Ryan's log. Plan for to day is to continue PEM characterization. 

unamplified seed: 0.0055 amplified seed: 0.052, deamplified: 0.00073 NLG = 9.45, seems too small

no sqz: 1447564297 - 1447565492
reduced seed, adjusted temp: amplified max:0.00547 minimum 8.3e-5, unamplified: 2.54e-4 NLG 21.5

FIS, ran scan sqz angle kHz, CLF 6 demod phase left at 149.7 degrees. 1447566037

I started the script to scan squeezing angles with FIS, Ryan Short gave me a pointer on how to have my script change guardian states (puts SQZ ANGLE SERVO to IDLE now).  It is set up to try the current angle +/-10 degrees, run through a bunch of angles in 20 degree steps, flip the CLF sign and run through angles again.  When finished it should request frequency dependent squeezing again and Ryan has set things up so the IFO should go to observing when that happens.  

The script ran anf completed, the IFO didn't go to observing when it completed because I forgot to turn off the pico controler after I lowered the seed.  Here is the log of times:

log of changes : 
149.7 : 1447566755.0 
159.7 : 1447566995.0 
139.7 : 1447567235.0 
200.0 : 1447567475.0 
180.0 : 1447567715.0 
160.0 : 1447567956.0 
140.0 : 1447568195.0 
120.0 : 1447568436.0 
100.0 : 1447568676.0 
80.0 : 1447568916.0 
60.0 : 1447569156.0 
40.0 : 1447569396.0 
20.0 : 1447569636.0 
0.0 : 1447569876.0 
180.0 : 1447570116.0 
160.0 : 1447570356.0 
140.0 : 1447570596.0 
120.0 : 1447570837.0 
100.0 : 1447571076.0 
80.0 : 1447571317.0 
60.0 : 1447571557.0 
40.0 : 1447571797.0 
20.0 : 1447572037.0 
0.0 : 1447572277.0 

TITLE: 11/19 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:

H1 had a lockloss from an unknown source early on in my shift, but after an alignment, relocking went easily. Since then, I've been tuning magnetic injection parameters to be used later this week. Also had an alarm for an annulus ion pump at the Y-arm BTM, so I phoned Travis as I was unsure how critical this was. He took a look into it and believes addressing this can wait until morning.

I've set the remote owl operator so that H1 will relock overnight if it unlocks for some reason so that it's ready to go in the morning, but no calls will be made for help. H1 will also start observing, if it can, on the off-chance there's a potential candidate signal.

Sheila has started a script to change the SQZ angle while in frequency independent squeezing, which should take about 90 minutes and will put settings back to nominal when done, at which point H1 should go into observing.

• 00:39 - Lockloss
• 01:23 - Running initial alignment
• 02:31 - Low Noise

During PRC Align, IMC unlocked and couldn't relock due to the FSS oscillating a lot - PZT MON was showing it moving all over the place, and I couldn't even take the IMC to OFFLILNE or DOWN due to the PSL ready check failing. To try and fix the oscillation issue, I turned off the autolock for the Loop Automation on the FSS screen, and after a few seconds re-enabled the autolocking, and then we were able to go to DOWN fine, and then I was able to relock the IMC.

TJ said this has happened to him and to a couple other operators recently.

Something happened with BRSY this morning during maintenance that caused it to ring up more than normal and now the damping is not behaving quite as expected. For now, I have paused the ETMY sensor correction guardian with the BRSY out of loop and turned off the output of the BRS so it won't be used for eq mode, should that transition happen.

So far today, I did a bunch of "recapturing frames" in the BRS C# code, which has usually fixed this issue in the past. We also restarted the beckhoff computer, then the plc, C# and epics ioc. This did not recover the BRS either. Marc, Fil and I went to EY and looked at the damping drive in the enclosure and I think it was behaving okay. When the drive came on, the output would reach ~1.8V, then go to 0V when it turned off.

I've contacted UW and we will take a look at this again tomorrow.