While Robert was doing some low-level commissioning (so, relatively quiet time), I had the NonSENS cleaning on again.  Data is good from 17:34:13 UTC - 18:07:48 UTC (12 Oct 2023).  It gave us about 7 Mpc.  Since the LSCFF is being tuned, hopefully most of that will just be taken care of with the in-loop feedforward, since the cleaning is not yet approved for use in Observe.

Jenne, Camilla 

We've moved the LSC FF from ETMX to ETMY PUM and turned on the new LSC FF filters measured in 73393.

This has reduced noise above 50Hz but increased noise below 50Hz, plots attached of the FF and DARM, compare gold to pink. H1 range is simular.

We've left this configuration, edited ISC_LOCK for this to be the new nominal and accepted attached sdfs. We plan to work to iteratively improve the filters in the next few hours with a new set of measurements we took this morning ~18:40UTC.

Locked for 13 hours. We have been taking opportunistic commissioning time this morning while LLO is down from seismic noise, but have just went back to Observing.

Vicky, Regina, Naoki, Sheila 

We took squeeze data with PSAMs on ZM4 and ZM5 both at 120V, and four squeeze angles. Summary screenshot here, with these trends of squeezed BLRMS. All of the following data was done with frequency dependent squeezing. 

• No Sqz (400 sec)
  • Start: 1381106746
  • Set ZM4 and ZM5 both to 120 V at 1381107446
    • H1:AWC-ZM4_PSAMS_STRAIN_VOLTAGE 5.46593
    • H1:AWC-ZM4_PSAMS_DEFOCUS_MON_MDIOPTER 258.34
    • H1:AWC-ZM5_PSAMS_STRAIN_VOLTAGE 1.392
    • H1:AWC-ZM5_PSAMS_DEFOCUS_MON_MDIOPTER -966.5
  • We are leaving the injected squeeze angle at a demod phase of 150 degrees, although there looks to be some visible squeeze misrotation above the DARM pole
• Sqz (400 sec)
  • Start: 1381107682
  • Phase demod +150 degrees
• Anti sqz (400 sec)
  • Start: 1381108725
  • Phase demod +241.91 degrees
• +mid sqz (400 sec)
  • Start: 1381109400
  • Phase demod at +200 degrees
• -mid sqz (320 sec) 
  • Start: 1381110296
  • Phase demod at +32 degrees 
  • Averaging ended early due to lockloss, almost definitely unrelated. We did not remeasure shot noise at the end or fully rotate into squeezing. 

With ZM4/5 at 120/120 V, +/- mid squeeze have noticibly different misrotations across the band. In alog 71902 from Aug. 2 with PSAMS at 200/200V, we didn't see strong misrotations down to ~80 Hz. From FDS data on Aug 2, compare today's green/blue lines to the green and yellow +/- mid squeeze lines in this plot.

DTT saved at $(userapps)/sqz/h1/Templates/dtt/DARM/PSAMS_tests_Oct112023.xml

Full DQ shift report is at: https://wiki.ligo.org/DetChar/DataQuality/DQShiftLHO20231002
Overall a relatively uneventful week.
Range frequently stable around 150 Mpc with some drops down to 140
Found that hveto was looking at unsafe channels to generate vetos, should be fixed now
Some safe channels also found by hveto as good witnesses:
    H1:PEM-EX_EFM_BSC9_ETMX_Y_OUT_DQ
    H1:SUS-ETMX_L3_OPLEV_PIT_OUT_DQ
    H1:SUS-ETMX_L3_OPLEV_YAW_OUT_DQ

Glitches continue to be problematic, much higher glitch rate than L1.
Some of the glitches most affecting the PyCBC search have werd morphologies

Thu Oct 12 10:11:05 2023 INFO: Fill completed in 11min 1secs

Jordan confirmed a good fill curbside.

Closes FAMIS#26482, last checked 72639

check_T240_centering.py - 2023-10-12 08:41:09.262244

There are 12 T240 proof masses out of range ( > 0.3 [V] )!
ETMX T240 2 DOF X/U = -0.918 [V]
ETMX T240 2 DOF Y/V = -1.076 [V]
ETMX T240 2 DOF Z/W = -0.32 [V]
ITMX T240 1 DOF X/U = -0.87 [V]
ITMX T240 1 DOF Z/W = 0.428 [V]
ITMX T240 3 DOF X/U = -0.842 [V]
ITMY T240 3 DOF X/U = -0.56 [V]
ITMY T240 3 DOF Z/W = -1.111 [V]
BS T240 1 DOF Y/V = -0.456 [V]
BS T240 3 DOF Y/V = -0.358 [V]
BS T240 3 DOF Z/W = -0.573 [V]
HAM8 1 DOF Z/W = -0.306 [V]

All other proof masses are within range ( < 0.3 [V] ):
ETMX T240 1 DOF X/U = 0.219 [V]
ETMX T240 1 DOF Y/V = 0.125 [V]
ETMX T240 1 DOF Z/W = 0.152 [V]
ETMX T240 3 DOF X/U = 0.1 [V]
ETMX T240 3 DOF Y/V = 0.114 [V]
ETMX T240 3 DOF Z/W = 0.097 [V]
ETMY T240 1 DOF X/U = -0.013 [V]
ETMY T240 1 DOF Y/V = 0.058 [V]
ETMY T240 1 DOF Z/W = 0.124 [V]
ETMY T240 2 DOF X/U = -0.082 [V]
ETMY T240 2 DOF Y/V = 0.146 [V]
ETMY T240 2 DOF Z/W = 0.028 [V]
ETMY T240 3 DOF X/U = 0.128 [V]
ETMY T240 3 DOF Y/V = 0.002 [V]
ETMY T240 3 DOF Z/W = 0.09 [V]
ITMX T240 1 DOF Y/V = 0.267 [V]
ITMX T240 2 DOF X/U = 0.086 [V]
ITMX T240 2 DOF Y/V = 0.217 [V]
ITMX T240 2 DOF Z/W = 0.188 [V]
ITMX T240 3 DOF Y/V = 0.107 [V]
ITMX T240 3 DOF Z/W = 0.112 [V]
ITMY T240 1 DOF X/U = 0.068 [V]
ITMY T240 1 DOF Y/V = -0.008 [V]
ITMY T240 1 DOF Z/W = -0.14 [V]
ITMY T240 2 DOF X/U = 0.061 [V]
ITMY T240 2 DOF Y/V = 0.13 [V]
ITMY T240 2 DOF Z/W = 0.014 [V]
ITMY T240 3 DOF Y/V = 0.039 [V]
BS T240 1 DOF X/U = -0.225 [V]
BS T240 1 DOF Z/W = -0.009 [V]
BS T240 2 DOF X/U = -0.184 [V]
BS T240 2 DOF Y/V = -0.084 [V]
BS T240 2 DOF Z/W = -0.226 [V]
BS T240 3 DOF X/U = -0.295 [V]
HAM8 1 DOF X/U = -0.131 [V]
HAM8 1 DOF Y/V = -0.094 [V]

check_sts_centering.py - 2023-10-12 08:43:32.265464

There are 2 STS proof masses out of range ( > 2.0 [V] )!
STS EY DOF X/U = -4.106 [V]
STS EY DOF Z/W = 2.601 [V]

All other proof masses are within range ( < 2.0 [V] ):
STS A DOF X/U = -0.614 [V]
STS A DOF Y/V = -0.874 [V]
STS A DOF Z/W = -0.437 [V]
STS B DOF X/U = 0.519 [V]
STS B DOF Y/V = 0.874 [V]
STS B DOF Z/W = -0.547 [V]
STS C DOF X/U = -0.365 [V]
STS C DOF Y/V = 0.808 [V]
STS C DOF Z/W = 0.217 [V]
STS EX DOF X/U = -0.246 [V]
STS EX DOF Y/V = 0.01 [V]
STS EX DOF Z/W = 0.059 [V]
STS EY DOF Y/V = 0.13 [V]
STS FC DOF X/U = 0.4 [V]
STS FC DOF Y/V = -0.74 [V]
STS FC DOF Z/W = 0.793 [V]

Closes FAMIS#26212, last checked 73167

Everything looking good besides ISS diffracted power low

Laser Status:
    NPRO output power is 1.822W (nominal ~2W)
    AMP1 output power is 67.6W (nominal ~70W)
    AMP2 output power is 136.1W (nominal 135-140W)
    NPRO watchdog is GREEN
    AMP1 watchdog is GREEN
    AMP2 watchdog is GREEN

PMC:
    It has been locked 20 days, 1 hr 15 minutes
    Reflected power = 16.57W
    Transmitted power = 109.4W
    PowerSum = 125.9W

FSS:
    It has been locked for 0 days 10 hr and 20 min
    TPD[V] = 0.7294V

ISS:
    The diffracted power is around 1.7%
    Last saturation event was 0 days 10 hours and 20 minutes ago

Possible Issues:
    ISS diffracted power is low

TITLE: 10/12 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 150Mpc
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 3mph Gusts, 2mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.21 μm/s
QUICK SUMMARY: Locked for 9 hours, useism trending down to good levels.

CDS Overview OK, no alarms

DIAG_MAIN - ITMY HWS code has stopped

TITLE: 10/12 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 148Mpc
INCOMING OPERATOR: Ibrahim
SHIFT SUMMARY: Two mystery locklosses with some opportunistic commissioning activities interspersed throughout the shift since L1 has been down.

• 23:09 Initial alignment complete, starting lock acquisition
• 23:52 Reached NLN, fully automated
• 01:50 Lockloss - alog
• 02:47 Reached NLN, fully automated
• 02:54 Started observing
• 03:23 Dropped observing for SQZ commissioning - alog
• 04:26 Resumed observing
• 05:10 Lockloss - alog
• 05:53 Reached NLN, fully automated
• 06:04 Started observing

HWS ITMX code is stopped and has been for the majority of this shift, tagging TCS.

LOG:

Lockloss @ 05:10 UTC - no immediately obvious cause. Another quick lockloss, no DCPD saturation this time.

While L1 was down this evening, H1 dropped out of observing between 03:23 and 04:26 UTC to opportunistically continue SQZ tests (see alog 73408).

Tagging DetChar: although gwistat reported H1 was "Ready" for much of this time (where the GDS range was being computed since we could have flipped the intent bit to start observing), H1 was not observing between 03:23 UTC and 04:26 UTC for commissioning time.

H1 has just started observing at 146Mpc as of 02:54 UTC.

There's a M5.5 earthquake coming in from Alaska, so hopefully we can hold on through the rest of the evening.

Lockloss @ 01:50 UTC - no immediately obvious cause, happened quickly with a DCPD saturation.

H1 had reached NLN at 23:52 UTC and resumed with commissioning since L1 was not locked. There were SQZ-related tests being run at this time, but it's very unlikely they were the cause of this lockloss.

On Tuesday I tuned the periscope in the PSL by adjusting weights and Tyler and I shut down SF2, which was responsible for the new 120 Hz HVAC peak ( https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=73378 ). Figure 1 shows the reduction of the periscope peak from tuning, and from tuning plus the fan shutdown. The fan shutdown had the greatest effect.

Figure 2 shows the disappearance of the peak from the summary pages, as well as the 3+ MPc increase in range from the fan change only.

During commissioning today I looked for the source of the 13.1 Hz harmonics that began to appear on Oct. 3, by testing some of the things that were done that Tuesday. First  I temporarily shut down the DC-DC converter and oplev laser for ITMX that had been worked on. But the noise, likely from the very high microseism, made my tests inconclusive. I also tried disconnecting the new grounding on the TCS and PSL chassis. Since DARM noise was too high for me to tell if this helped, I have left them disconnected and will reconnect the grounds when we can tell that they are not part of the problem.