Damping ETMY mode 20 and high resolution spectra for modes in kHz region (1500-2000Hz)

ETMY mode 20 had no damping settings in the Guardian and the mode was rung up. I applied the following settings and it has worked during this lock stretch. I will add it to the Guardian and accept them in the SDF once I am confident that the settings work consistently.

FM1 FM4 FM10 Gain -1.0

The above filters were already engaged, hence I only had to look for an appropriate gain and this didn't kick us out of Observing.

Also, Jenne wanted some of the higher order modes to be looked into and damped (see her alog 71212). I took high resolution spectra for modes between 1500Hz and 2000Hz and have been working on identifying (frequencies and which optic it belongs to) the top few rung up modes. Once identified, I will start looking for damping settings for the same.

Wed Ops Owl Mid Shift Update

8:52 UTC GRB-Short Candidate E416867 

Other than that and a number of these messages that popup in DIAG -Main every few minutes:
2023-07-12_10:07:30.392076Z DIAG_MAIN [RUN_TESTS.run] USERMSG 0: PSL_ISS: Diffracted power is low
But they go away immediatley, Ndscope attached.

Rahul has been actively working on Violin Damping and seems to have found a good setting for ETMY M2.

H1 ISI CPS Noise Spectra Check - Weekly

FAMIS 19666

ITMX_ST2_CPSINF_H1 high freq noise is high!
ITMX_ST2_CPSINF_H3 high freq noise is high!

Wednesday Ops Owl Shift Start

TITLE: 07/12 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 136Mpc
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 16mph Gusts, 14mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.04 μm/s
QUICK SUMMARY:
Everything looks great and seems to be functioning properly.

Current IFO Status: NOMINAL_LOW_NOISE & OBSERVING

 

Ops Eve Shift Summary

TITLE: 07/12 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 140Mpc
SHIFT SUMMARY: H1 has been locked and Observing for 6.5 hours. Quiet evening once H1 was locked and violins were damped enough.

• H1 relocking from previous shift
• While waiting in OMC_WHITENING for an hour, raised damping gains for most violin modes which had been lowered by guardian
• NLN and observing as of 00:29

Handing off to Tony for the rest of the night.

LOG:

No log for this shift.

PSL 10-Day Trends

FAMIS 19984

FSS TPD signal has been slightly dropping over the past week, along with the ISS diffraction average. This may correspond with a slight increase in PMC REFL power.

Ops Eve Mid Shift Update

State of H1: Observing at 140Mpc

H1 has been locked and observing for 2.5 hours. Waited in OMC_WHITENING for an hour to damp violins; Oli and I were able to increase gains to modes that had their gains turned down by the guardian successfully to speed up the damping.

Ops DAY Shift End

TITLE: 07/11 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC

STATE of H1: Lock Acquisition

CURRENT ENVIRONMENT: SEI_ENV state: CALM

Wind: 12mph Gusts, 9mph 5min avg

Primary useism: 0.02 μm/s

Secondary useism: 0.05 μm/s

QUICK SUMMARY:

15:11 Unlocked detector for Tuesday maintainance

20:30 Locked and Observing

   - Needed to force ALS XARM PLL Crystal Frequency

   - Needed to pause at OMC_WHITENING to damp violins

22:24-22:25 Pushed out of Observing briefly

   - Squeezer lost lock and then relocked without manual intervention

22:29 Lock loss

   - Unknown cause In process of locking back up

   - Needed to force ALS XARM PLL Crystal Frequency again

LOG:

Start Time	System	Name	Location	Lazer_Haz	Task	Time End
14:44	FAC	Karen	VAC Prep	N	Technical cleaning	17:36
15:09	FAC	Cindi	FCES	n	Tech clean	17:44
15:09	SEI	Jim, Randy	CS	n	take down corner HEPIs	16:29
15:12	FAC	Kim, Karen	LVEA	n	Tech clean	17:14
15:23	SEI	Jim	HAM7	n	HAM7 measurement	17:48
15:27	FAC	Chris, Pest ppl	LVEA, Yarm, Xarm	n	Pest control	17:05
15:29	VAC	Gerardo, Jordan	EX	n	Turbo pump work	17:57
15:30	PCAL	Rick	Ends	n	Turn off pcal lines	18:59
15:45	APS	APS	LVEA FCTE	n	access system	18:40
15:46	VAC	Janos, Travis, Richard	EX, MX	n	Turbo pump stations running	17:46
16:06	SYS	Camilla, Joe	LVEA, PCAL lab	n, yes	Search for parts	16:38
16:06	PEM	Robert, Lance, Genevieve	EX. EY, CS	n	PEM injection shaker/speaker setup	18:40
16:15	FAC	Christina	LVEA	n	property tag search	17:23
16:29	SYS	Betsy, Mitchell	LVEA	n	Searching for parts	17:49
16:37	CDS	Fil	LVEA	n	Tracing out accel. cable by HAM 5/6	19:00
17:03	SEI	Jim, Fernando	LVEA	n	Chassis swap	18:20
17:07	FAC	Chris	LVEA	n	FAMIS check	17:49
17:14	-	SURF Group 1	LVEA	n	LVEA tour	18:48
17:16	-	Amber, tour	LVEA, roof	n	Tour	18:01
17:24	-	Camilla, SURF 2	Roof, LVEA	n	Tour	18:51
17:27	CDS	Marc	LVEA	n	Swap Baffle PD chassis in bier garten	17:58
17:31	ISC	Daniel	LVEA	n	Turn off sidebands	17:34
17:36	FAC	Karen	EY	n	Tech clean	18:47
17:37	FAC	Kim	EX	n	Tech clean	18:59
17:45	Property	Christina	Mids, Ends, FCES	n	Property search	19:02
17:50	FAC	Cindi	LVEA	n	garage door+mechanical room tech clean	19:10
18:00	-	Norco	EX	n	Tank 4380 fill	18:51
18:01	-	Amber, tour	EY	n	Tour	18:59
18:23	Access	Richard	LVEA	n	Turn off BS damp	18:51
18:39	VAC	Gerardo	LVEA	n	Grabbing parts	18:59
18:40	PEM	Robert, Lance, Genevieve	LVEA	n	PEM shaker prep	19:13
18:50	Access	Gerardo	Mid+End Stations	n	Check on Access	20:14
22:06		Travis	Mids	n	Flow meters	22:38
23:03	VAC	Gerardo, Jordan	LVEA	n	Looking for parts	23:03
23:07	VAC	Gerardo	Filter end cavity	n	Looking for parts	23:37

Ops Eve Shift Start

TITLE: 07/11 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 12mph Gusts, 9mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.05 μm/s
QUICK SUMMARY: Taking over from TJ and Oli. H1 is currently relocking after recent lockloss; just reached POWER_10W.

• All systems look good, expecting to damp violins by the look of the ~500Hz peak in DARM

CDS Maintenance Summary: Tuesday 11th July 2023

WP11293 Increase rate of LSC and ASCIMC channels

Daniel, Dave:

Daniel created new h1lsc and h1ascimc models which increased the DAQ rate of 3 DQ channels from 2kHz to 16kHz.

h1lsc:

H1:LSC-REFL_A_RF9_I_ERR_DQ datarate change from 2048 to 16384

h1ascimc:

H1:IMC-WFS_A_DC_PIT_OUT_DQ datarate change from 2048 to 16384

H1:IMC-WFS_A_DC_YAW_OUT_DQ datarate change from 2048 to 16384

I did not restart these models to load the new DAQ configuration, instead I pressed the "DAQ LOAD" button on the models' GDS_TP screen. A DAQ restart was required.

WP11299 Restart h1isietmx to test new SDF safe.snap

Jim, TJ, EJ, Dave:

The h1isietmx model was restarted using Jim's new safe.snap file. The original safe.snap was missing some channels, which was also the case for h1isiitmx and was discovered last Sunday's model restart.

The new safe.snap was found to be good.

One point of interest is that the SDF MEDM reports 3047 set point channels, and the safe.snap file has 3506 channels in it. EJ explained that for each filtermodule, the SDF combines the two switch channels (SW1S, SW2S) into one (SWSTAT). There are 459 filter modules in this model, and the maths works out 3047+459=3506.

WP11290 h1hwinj1 revert LALAPPS back to original version

Erik, Jonathan, Dave:

This turned out to be much more involved than originally thought due to dependencies. We were not able to perform the reversion during maintenance.

I did restart psinject on h1hwinj1 during maintenance to reset the memory usage to 7%.

WP11304 Temporarily remove INJ_CW GAIN/TRAMP channels from h1calinj SDF

Dave:

As a temporary measure while we are running the memory-leaking LALPULSAR, I stopped the monitoring of the INJ_CAL_GAIN and INJ_CAL_TRAMP from h1calinj's SDF. 

This will give us the ability to restart psinject and not knock H1 out of observe while doing so.

WP11291 Update tzdata on h1guardian1 to extend leapseconds officially

Jamie, Erik, Dave:

The tzdata package was updated on h1guardian1, which installed the "official" /usr/share/zoneinfo/leapseconds file and replace my hand-edited one.

The only issue was that apt-get recognized there was a local edit and did not overwrite it, but neither did it report this or give us the option to overwrite it.

The solution was to restore the original file, and then "apt-get reinstall tzdata" to force the install.

Model and DAQ restarts, model reloads

Dave:

Tue11Jul2023
LOC TIME HOSTNAME     MODEL/REBOOT
09:38:28 h1seiex      h1isietmx   

11:24:58 h1lsc DAQ LOAD

11:25:24 h1ascimc DAQ LOAD

11:27:34 h1daqdc0     [DAQ] <<< DAQ Restart for h1lsc and h1ascimc INI changes. 0-leg
11:27:45 h1daqfw0     [DAQ]
11:27:45 h1daqtw0     [DAQ]
11:27:46 h1daqnds0    [DAQ]
11:27:54 h1daqgds0    [DAQ]

11:31:49 h1daqdc1     [DAQ] <<< 1-leg
11:31:57 h1daqfw1     [DAQ]
11:31:58 h1daqnds1    [DAQ]
11:31:58 h1daqtw1     [DAQ]
11:32:06 h1daqgds1    [DAQ]
11:32:54 h1daqgds1    [DAQ] <<< GDS1 second restart
 

 

Lock loss 2229 UTC

1373057156

Locklost tool seems to have failed on this analysis. Looking at the LSC and ASC scopes, PRCL IN maybe seems to move first, but tought to say. Other than that, I'm not seeing much.

Observing 2023 UTC

Violins damped somewhat quickly. I applied more gain to a few modes to help them damp faster, then brought their gain back after we got to low noise.

Lock acquistion was completely automated, aside from me adding extra gain to speed things up.

MX and EX Turbo functionality test

FAMIS tasks 24865 and 24841

Procedure checklist for both stations completed.  No issues were identified at this time.

MX: Scroll pump hours: 201.4

       Crash bearings: 100%

EX: Scroll pump hours: 6307.8

       Crash bearings: 100%

HAM6 Floor Acceleromter

HAM6 floor accelerometer reported as not working, alog 71133. Cable located in CER connected to the new LIGO accelerometer chassis, channel 12. Other end of cable located on east door of HAM6. Cable previously repaired, short found in cable by HAM6. Cable cut a few feet to eliminate the short. New cable length does not reach the HAM6 floor accelerometer. A short patch cable will be made and installed next Tuesday.

Vacuum Rack LY - Fiber Patch Panel

Mounting brackets for the fiber patch panel in the LY vacuum rack were reinstalled. They were removed at the start of O4 to allow the front door to close properly, see alog 70200. Modifications needed to relocate the mounting brackets. Patch panel screwed back to rack.

Ops Day Mid Shift Report

Maintenace has completed and Oli has already ran an initial alignment (fixed!). Jim did a LVEA sweep. We are continuing to lock now.

Installed ITMY Baffle PD Amp

Per WP11286 in response to ALOG70818

We installed the spare S1302233 Baffle PD Amplifier directly below the installed Baffle PD Amplifiers into SUS R5 in the Biergarten.  ITMX is S1400066 and ITMY was S1400065 but we swapped functionality to the spare we just mounted below it (this rack is mostly empty).

If there are issues with the spare we can immediately swap functality back to the old unit.  If the spare fixes the issues, we will recover the old unit and perform a post mortem.  As there was no laser light during install we could not verify functionality while on the floor.

M. Pirello, F. Mera