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Reports until 13:14, Tuesday 01 July 2025
LHO VE (VE)
travis.sadecki@LIGO.ORG - posted 13:14, Tuesday 01 July 2025 (85469)
Acceptance measurements of new EX purge air compressor system

The new EX purge air compressor and drying skid were turned on this morning at ~8am and dewpoint and particulate measurements were taken at ~11:30am.  See attached pics of the dewpoint monitor at the exhaust of the drying tower, dewpoint at the coupling fitting at the EX spool just upstream of BSC9, and particulate counts at the same spool coupling.  FTIR sample was taken of the coupling fitting and will be stored onsite.  

Images attached to this report
H1 SUS
filiberto.clara@LIGO.ORG - posted 12:33, Tuesday 01 July 2025 - last comment - 15:58, Wednesday 02 July 2025(85463)
Top Sat Amps Modified for PRM/PR3/SR3/SRM/BS

WP 12640
ECR E2400330
Drawing D0901284-v5
T2500232

Today we started upgrading the SUS Sat Amps per ECR E2400330. Modification improves the whitening stage to reduce ADC noise from 0.05 to 10 Hz. The following units were replaced with modified units:

Suspension Old New
PRM TOP S1100067 S1100168
PRM/PR3 S1000275 S1100173
PR3 S1100175 S1100183
     
BS TOP S1100090 S1000291
BS RT/SD  S1100155 S1100066
     
SR3 Top S1000296 S1000284
SR3/SRM S1100178 S1000290
SRM S1100136 S1100068

F. Clara, C. Gray,  J. Kissel, O. Patane, M.Pirello

Comments related to this report
jeffrey.kissel@LIGO.ORG - 13:48, Wednesday 02 July 2025 (85504)CDS
Link 

Here's the characterization data and fit results for S1100168, assigned to PRM M1's T1T2T3LF OSEMs (what Fil refers to as just "PRM TOP" above).
The data was taken per methods described in T080062-v3.
The data was processed and fit using 
    ${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/
        plotresponse_S1100168_PRM_M1_T1T2T3LF_20250630.m

Explicitly, the fit to the whitening stage zero and pole, the transimpedance feedback resistor, and foton design string are
Optic    Stage    Serial_Number    Channel_Number     OSEM_Name    Zero_Pole_Hz    R_TIA_kOhm    Foton_Design
PRM      M1       S1100168         CH1                T1           0.0969 : 5.30   120.10        zpk([5.3],[0.0969],1,"n")
                                   CH2                T2           0.0950 : 5.20   120.25        zpk([5.2],[0.095],1,"n")
                                   CH3                T3           0.0950 : 5.18   120.25        zpk([5.18],[0.095],1,"n")
                                   CH4                LF           0.0940 : 5.15   120.00        zpk([5.15],[0.094],1,"n")

The attached plot and machine readable .txt file are also found in
${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/

Even though I've fit for the transimpedance gain, I've elected *not* to include a gain in the foton design string relative to "ideal," as there are more scale factors in play that determine the overall [(meters)/(ADC cts)] scale in the calibration of the OSEMs (LED light power, PD response, any cable loss, ADC channel gain, etc.). Determining this overall scale is better left to different methods, a la LHO:84548, which we (eventually) anticipate doing for all SUS with ECR E2400330 upgraded satamps.
Non-image files attached to this comment
jeffrey.kissel@LIGO.ORG - 14:05, Wednesday 02 July 2025 (85505)CDS
Link 

Here's the characterization data and fit results for  S1100173 , assigned to PRM/PR3 M1's RTSD/T1T2 OSEMs (what Fil refers to as just "PRM/PR3" above).
The data was taken per methods described in T080062-v3.
The data was processed and fit using 
    ${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/
        plotresponse_S1100173_PRMPR3_M1_RTSDT1T2_20250630.m

Explicitly, the fit to the whitening stage zero and pole, the transimpedance feedback resistor, and foton design string are
Optic    Stage    Serial_Number    Channel_Number     OSEM_Name    Zero_Pole_Hz    R_TIA_kOhm    Foton_Design
PRMPR3   M1       S1100173         CH1                RT           0.0969 : 5.3    120.00        zpk([5.3],[0.0969],1,"n")
                                   CH2                SD           0.0955 : 5.22   120.00        zpk([5.22],[0.0955],1,"n")
                                   CH3                T1           0.0975 : 5.35   119.75        zpk([5.35],[0.0975],1,"n")
                                   CH4                T2           0.0975 : 5.33   120.25        zpk([5.33],[0.0975],1,"n")

The attached plot and machine readable .txt file version of the above table are also found in
${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/

See above LHO:85504 comment as to why an account of the fit transimpedance was not included in the foton design string gain.
Non-image files attached to this comment
jeffrey.kissel@LIGO.ORG - 14:06, Wednesday 02 July 2025 (85506)CDS
Link 

Here's the characterization data and fit results for  S1100183 , assigned to PR3 M1's T3LFRTSD OSEMs (what Fil refers to as just "PR3" above).
The data was taken per methods described in T080062-v3.
The data was processed and fit using 
    ${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/
        plotresponse_S1100183_PR3_M1_T3LFRTSD_20250630.m

Explicitly, the fit to the whitening stage zero and pole, the transimpedance feedback resistor, and foton design string are
Optic    Stage    Serial_Number    Channel_Number     OSEM_Name    Zero_Pole_Hz    R_TIA_kOhm    Foton_Design
PR3      M1       S1100183         CH1                T3           0.0950 : 5.19   120           zpk([5.19],[0.095],1,"n")
                                   CH2                LF           0.0945 : 5.17   120           zpk([5.17],[0.0945],1,"n")
                                   CH3                RT           0.0940 : 5.14   120           zpk([5.14],[0.094],1,"n")
                                   CH4                SD           0.0955 : 5.24   120           zpk([5.24],[0.0955],1,"n")

The attached plot and machine readable .txt file version of the above table are also found in
${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/

See above LHO:85504 comment as to why an account of the fit transimpedance was not included in the foton design string gain.
Non-image files attached to this comment
jeffrey.kissel@LIGO.ORG - 14:11, Wednesday 02 July 2025 (85507)
Link 

Here's the characterization data and fit results for  S1000291 , assigned to BS M1's F1F2F3LF OSEMs (what Fil refers to as just "BS TOP" above).
The data was taken per methods described in T080062-v3.
The data was processed and fit using 
    ${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/
        plotresponse_S1000291_BS_M1_F1F2F3LF_20250630.m

Explicitly, the fit to the whitening stage zero and pole, the transimpedance feedback resistor, and foton design string are
Optic    Stage    Serial_Number    Channel_Number     OSEM_Name    Zero_Pole_Hz    R_TIA_kOhm    Foton_Design
BS       M1       S1000291         CH1                F1           0.096 : 5.19    121.50        zpk([5.19],[0.096],1,"n")
                                   CH2                F2           0.096 : 5.23    120.75        zpk([5.23],[0.096],1,"n")
                                   CH3                F3           0.096 : 5.26    120.00        zpk([5.26],[0.096],1,"n")
                                   CH4                LF           0.095 : 5.2     120.00        zpk([5.2],[0.095],1,"n")

The attached plot and machine readable .txt file version of the above table are also found in
${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/

See above LHO:85504 comment as to why an account of the fit transimpedance was not included in the foton design string gain.
Non-image files attached to this comment
jeffrey.kissel@LIGO.ORG - 14:18, Wednesday 02 July 2025 (85508)
Link 

Here's the characterization data and fit results for  S1100066 , assigned to BS M1's RTSDxxxx OSEMs (with the 2x "xx" representing the unused channels not connected to anything in-vacuum. Fil refers to this as just "BS RT/SD" above).
The data was taken per methods described in T080062-v3.
The data was processed and fit using 
    ${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/
        plotresponse_S1100066_BS_M1_RTSDxxx_20250630.m

Explicitly, the fit to the whitening stage zero and pole, the transimpedance feedback resistor, and foton design string are
Optic    Stage    Serial_Number    Channel_Number     OSEM_Name    Zero_Pole_Hz    R_TIA_kOhm    Foton_Design
BS       M1       S1100066         CH1                RT           0.0960 : 5.19   121.50        zpk([5.19],[0.096],1,"n")
                                   CH2                SD           0.0940 : 5.11   120.75        zpk([5.11],[0.094],1,"n")
                                   CH3                xx           0.0935 : 5.12   120.25        zpk([5.12],[0.0935],1,"n")
                                   CH4                xx           0.0965 : 5.26   120.50        zpk([5.26],[0.0965],1,"n")

The attached plot and machine readable .txt file version of the above table are also found in
${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/

See above LHO:85504 comment as to why an account of the fit transimpedance was not included in the foton design string gain.
Non-image files attached to this comment
jeffrey.kissel@LIGO.ORG - 14:22, Wednesday 02 July 2025 (85509)
Link 

Here's the characterization data and fit results for  S1000284 , assigned to SR3 M1's T1T2T3LF OSEMs (Fil refers to this as just "SR3 Top" above).
The data was taken per methods described in T080062-v3.
The data was processed and fit using 
    ${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/
        plotresponse_S1000284_SR3_M1_T1T2T3LF_20250630.m

Explicitly, the fit to the whitening stage zero and pole, the transimpedance feedback resistor, and foton design string are
Optic    Stage    Serial_Number    Channel_Number     OSEM_Name    Zero_Pole_Hz    R_TIA_kOhm    Foton_Design
SR3      M1       S1000284         CH1                T1           0.0960 : 5.25   120.1         zpk([5.25],[0.096],1,"n")
                                   CH2                T2           0.0950 : 5.2    120.1         zpk([5.2],[0.095],1,"n")
                                   CH3                T3           0.0960 : 5.27   120.1         zpk([5.27],[0.096],1,"n")
                                   CH4                LF           0.0945 : 5.16   120.5         zpk([5.16],[0.0945],1,"n")

The attached plot and machine readable .txt file version of the above table are also found in
${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/

See above LHO:85504 comment as to why an account of the fit transimpedance was not included in the foton design string gain.
Non-image files attached to this comment
jeffrey.kissel@LIGO.ORG - 14:30, Wednesday 02 July 2025 (85511)
Link 

Here's the characterization data and fit results for  S1000290 , assigned to SR3/SRM M1's RTSD/T1T2 OSEMs (Fil refers to this as just "SR3/SRM" above).
The data was taken per methods described in T080062-v3.
The data was processed and fit using 
    ${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/
        plotresponse_S1000290_SR3SRM_M1_RTSDT1T2_20250630.m

Explicitly, the fit to the whitening stage zero and pole, the transimpedance feedback resistor, and foton design string are
Optic    Stage    Serial_Number    Channel_Number     OSEM_Name    Zero_Pole_Hz    R_TIA_kOhm    Foton_Design
SR3/SRM  M1       S1000290         CH1                RD           0.0955 : 5.21   120.1         zpk([5.21],[0.0955],1,"n")
                                   CH2                SD           0.0940 : 5.13   120.5         zpk([5.13],[0.094],1,"n")
                                   CH3                T1           0.0930 : 5.07   120.5         zpk([5.07],[0.093],1,"n")
                                   CH4                T2           0.0950 : 5.2    120.1         zpk([5.2],[0.095],1,"n")

The attached plot and machine readable .txt file version of the above table are also found in
${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/

See above LHO:85504 comment as to why an account of the fit transimpedance was not included in the foton design string gain.
Non-image files attached to this comment
jeffrey.kissel@LIGO.ORG - 15:58, Wednesday 02 July 2025 (85513)CDS
Link 

Here's the characterization data and fit results for  S1100068 , assigned to SRM M1's T3LFRTSD OSEMs (Fil refers to this as just "SRM" above).
The data was taken per methods described in T080062-v3.
The data was processed and fit using 
    ${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/
         plotresponse_S1100068_SRM_M1_T3LFRTSD_20250630.m

Explicitly, the fit to the whitening stage zero and pole, the transimpedance feedback resistor, and foton design string are
Optic    Stage    Serial_Number    Channel_Number     OSEM_Name    Zero_Pole_Hz    R_TIA_kOhm    Foton_Design
SRM      M1       S1100068         CH1                T3           0.094 : 5.14    120.10        zpk([5.14],[0.094],1,"n")
                                   CH2                LF           0.095 : 5.18    120.25        zpk([5.18],[0.095],1,"n")
                                   CH3                RT           0.096 : 5.23    120.75        zpk([5.23],[0.096],1,"n")
                                   CH4                SD           0.096 : 5.29    119.00        zpk([5.29],[0.096],1,"n")

The attached plot and machine readable .txt file version of the above table are also found in
${SusSVN}/trunk/electronicstesting/lho_electronics_testing/satamp/ECR_E2400330/Scripts/

See above LHO:85504 comment as to why an account of the fit transimpedance was not included in the foton design string gain.
Non-image files attached to this comment
H1 ISC (ISC)
marc.pirello@LIGO.ORG - posted 12:16, Tuesday 01 July 2025 (85468)
Replaced Failed Kepco Supplies for EY Field Racks

Per WP12650 we investigated and replaced two supplies with locked up cooling fans at EY.  These supplies service power to the field rack R1 and by extension, the neighboring SUS rack.

We noted the -18V supply in slot U26 on VDC-C1 was running very hot, and when we looked the fan was visibly siezed up.  Continuing down the rack, U22 +24V was also siezed up.  We replaced both failed supplies with refurbished supplies with upgraded fans.  We also lubricated the opposing supplies' fan shafts, +18V and -24V respectively with a drop of lubricant each.

U26L S1203041 +18V was lubricated.
U26R S1201988 -18V was replaced.
U22L S1201929 +24V was replaced.
U22R S1300297 -24V was lubracted.

F. Clara
J. Figueroa
M. Pirello

H1 SUS
jeffrey.kissel@LIGO.ORG - posted 12:14, Tuesday 01 July 2025 (85467)
H1SUSTMSY M1 Damping Loop Open Loop Gain TFs 
J. Kissel

I've tuned the drive on ALL DOFs of the TMSY open loop gain TF measurement set. Actual results and thoughts will come later, but the templates are 
    /ligo/svncommon/SusSVN/sus/trunk/TMTS/H1/TMSY/SAGM1/Data/
        2025-07-01_1650_H1SUSTMSY_M1_WhiteNoise_L_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1650_H1SUSTMSY_M1_WhiteNoise_P_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1650_H1SUSTMSY_M1_WhiteNoise_R_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1650_H1SUSTMSY_M1_WhiteNoise_T_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1650_H1SUSTMSY_M1_WhiteNoise_V_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1650_H1SUSTMSY_M1_WhiteNoise_Y_0p01to50Hz_OpenLoopGainTF.xml

The SUS was in the HEALTH_CHECK state (alignment offsets OFF), and attached is a screenshot of the damping loop configuration.
Images attached to this report
H1 CDS
patrick.thomas@LIGO.ORG - posted 11:59, Tuesday 01 July 2025 (85465)
Removed odd cabling from h1brsey and connected it to the KVM switch 
WP 12613.
ALOG: 84928.

"Remove the cabling described in https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=84928 from h1brsey and the network switch. Use the video port on h1brsey currently occupied by that cabling to connect to the kvm in the rack instead. Jim noted that "It might have been some sort of kvm or display extension set up Carlos tried for me. The rdp for beckhoff had too much lag to rebalance the BRS, so we had looked at some more direct remote display options, but I don't remember the details." and "the remote adjuster just installed means we don't need it, if that is what it is." Work to be done during any target of opportunity."

This work has been completed.
H1 CDS (CDS, VE)
patrick.thomas@LIGO.ORG - posted 11:31, Tuesday 01 July 2025 (85462)
Updated scripts used to copy files on some vacuum machines 
WP 12641.

"Install git and clone the vacuum repos on the vacuum machines where it has not yet been done. Update the scripts used to copy the channel lists from each of the Beckhoff vacuum machines to CDS to additionally copy the EPICS database files. Run the scripts on each of the vacuum machines. No expected downtime or impacts."

I have completed the work on h0vaclx, h0vacly and h0vacmr and copied the auto generated EPICS IOC database files over. These did not need git to be installed. I did not do the remaining machines since I do not believe they are running out of the git repos and I was getting nervous.

A couple of small issues. On h0vaclx I accidentally committed the change to the copy script before pulling changes from the remote repo. On h0vacmr more changes came down in the pull from the remote repo than I was expecting.

h0vaclx:

$ git pull
remote: Enumerating objects: 15, done.
remote: Counting objects: 100% (7/7), done.
remote: Compressing objects: 100% (5/5), done.
remote: Total 15 (delta 2), reused 2 (delta 2), pack-reused 8 (from 1)
Unpacking objects: 100% (15/15), 3.90 KiB | 124.00 KiB/s, done.
From https://git.ligo.org/cds/ifo/beckhoff/lho-vacuum
   d27c3eb..0faf5c4  main       -> origin/main
Merge made by the 'ort' strategy.
 Source/Scripts/h0vacly_create_target.ps1 | 6 ++++--
 Target/H0VACLY/scp.bat                   | 2 +-
 2 files changed, 5 insertions(+), 3 deletions(-)


$ git log
commit 4bc3d2a5267797ae947c596e1f5007183cf3cfd4 (HEAD -> main)
Merge: f217076 0faf5c4
Author: Patrick Thomas 
Date:   Tue Jul 1 10:34:45 2025 -0700

    Merge branch 'main' of https://git.ligo.org/cds/ifo/beckhoff/lho-vacuum

commit f2170760b6c51d68eb4a1d8b32466f044a882303
Author: Patrick Thomas 
Date:   Tue Jul 1 10:33:23 2025 -0700

    Added the EPICS database file to the list of files to copy over.

commit 0faf5c4aeb5c61116a5abf0573cb3d09ffdc9e7c (origin/main, origin/HEAD)
Author: Patrick Thomas 
Date:   Tue Jun 24 11:46:18 2025 -0700

    Updated host name.


h0vacmr:

$ git pull
remote: Enumerating objects: 303, done.
remote: Counting objects: 100% (75/75), done.
remote: Compressing objects: 100% (31/31), done.
remote: Total 303 (delta 59), reused 44 (delta 44), pack-reused 228 (from 1)
Receiving objects: 100% (303/303), 7.56 MiB | 8.56 MiB/s, done.
Resolving deltas: 100% (89/89), completed with 11 local objects.
From https://git.ligo.org/cds/ifo/beckhoff/lho-vacuum
   3687c4f..4c1c97d  main       -> origin/main
Updating 3687c4f..4c1c97d
Fast-forward
 Library/2010/Vacuum/Vacuum.project.~u              |    4 +
 Library/2010/Vacuum/Vacuum.sln                     |   44 +
 Library/2010/Vacuum/Vacuum.suo                     |  Bin 0 -> 19968 bytes
 Library/2010/Vacuum/Vacuum.tsproj                  |   13 +
 Library/2010/Vacuum/Vacuum.tsproj.bak              |    4 +
 .../2010/Vacuum/Vacuum/DUTs/SmoothStateEnum.TcDUT  |   12 +
 .../Controls/ColdCathodeGaugePowerControlFB.TcPOU  |   41 +
 .../Vacuum/POUs/Controls/PIControllerFB.TcPOU      |   96 +
 .../Controls/RegenHeaterTemperatureControlFB.TcPOU |  160 +
 .../AnnulusIonPumpMilliAmpsToLogMilliAmpsFun.TcPOU |   23 +
 .../AnnulusIonPumpMilliAmpsToTorrFun.TcPOU         |   33 +
 .../AnnulusIonPumpVoltsToMilliAmpsFun.TcPOU        |   19 +
 .../POUs/Conversions/CC10/CC10VoltsToTorrFun.TcPOU |   31 +
 .../ColdCathodeGaugeTorrToLogTorrFun.TcPOU         |   23 +
 .../ColdCathodeGaugeVoltsToTorrFun.TcPOU           |   23 +
 .../CryopumpMilliAmpsToPercentFullFun.TcPOU        |   27 +
 ...evelControlValvePercentOpenToMilliAmpsFun.TcPOU |   27 +
 .../Dewar/DewarMilliAmpsToPercentFullFun.TcPOU     |   27 +
 .../Dewar/DewarPercentFullToGallonsFun.TcPOU       |   20 +
 ...ineMilliAmpsToPoundsPerSquareInchGaugeFun.TcPOU |   27 +
 ...eLineMilliAmpsToStandardLitrePerMinuteFun.TcPOU |   27 +
 ...FanVibrationMilliAmpsToInchesPerSecondFun.TcPOU |   27 +
 ...GateValveLimitSwitchesToPositionNumberFun.TcPOU |   33 +
 ...teValvePositionNumberToAnimationNumberFun.TcPOU |   32 +
 ...ateValvePositionNumberToPositionStringFun.TcPOU |   29 +
 .../GaugeControllerMKS937VoltsToTorrFun.TcPOU      |   21 +
 .../Conversions/IO/EL3004CountsToVoltsFun.TcPOU    |   27 +
 .../IO/EL3024CountsToMilliAmpsFun.TcPOU            |   27 +
 .../IO/EL3314CountsToDegreesCelsiusFun.TcPOU       |   19 +
 .../IO/EL4024MilliAmpsToCountsFun.TcPOU            |   32 +
 .../Inficon/InficonBPG402TorrToLogTorrFun.TcPOU    |   23 +
 .../Inficon/InficonBPG402VoltsToTorrFun.TcPOU      |   19 +
 ...mentAirVoltsToPoundsPerSquareInchGaugeFun.TcPOU |   27 +
 .../IonPumpControllerDualVacTorrToStatusFun.TcPOU  |   23 +
 ...nPumpControllerDualVacVoltsToKiloVoltsFun.TcPOU |   34 +
 .../IonPumpControllerDualVacVoltsToTorrFun.TcPOU   |   25 +
 .../IonPumpControllerGammaAmpsToTorrFun.TcPOU      |   21 +
 .../IonPumpControllerGammaTorrToStatusFun.TcPOU    |   23 +
 .../IonPumpControllerGammaVoltsToAmpsFun.TcPOU     |   19 +
 ...IonPumpControllerGammaVoltsToKiloVoltsFun.TcPOU |   34 +
 .../IonPumpControllerIPCMiniAmpsToTorrFun.TcPOU    |   31 +
 .../IonPumpControllerIPCMiniTorrToStatusFun.TcPOU  |   23 +
 .../IonPumpControllerIPCMiniVoltsToAmpsFun.TcPOU   |   27 +
 ...nPumpControllerIPCMiniVoltsToKiloVoltsFun.TcPOU |   34 +
 .../IonPumpControllerMiniVacAmpsToTorrFun.TcPOU    |   31 +
 .../IonPumpControllerMiniVacTorrToStatusFun.TcPOU  |   23 +
 .../IonPumpControllerMiniVacVoltsToAmpsFun.TcPOU   |   27 +
 ...nPumpControllerMiniVacVoltsToKiloVoltsFun.TcPOU |   34 +
 .../IonPumpControllerMultiVacTorrToStatusFun.TcPOU |   23 +
 ...PumpControllerMultiVacVoltsToKiloVoltsFun.TcPOU |   34 +
 .../IonPumpControllerMultiVacVoltsToTorrFun.TcPOU  |   25 +
 .../POUs/Conversions/LinearConversionFun.TcPOU     |   31 +
 .../PiraniGauge/PiraniGaugeVoltsToTorrFun.TcPOU    |   55 +
 .../RegenHeaterDegreesCelsiusToMilliAmpsFun.TcPOU  |   27 +
 ...aterPressureVoltsToPoundsPerSquareInchFun.TcPOU |   27 +
 .../Vacuum/Vacuum/POUs/Filters/DeadBandFB.TcPOU    |   30 +
 .../2010/Vacuum/Vacuum/POUs/Filters/SmoothFB.TcPOU |   41 +
 Library/2010/Vacuum/Vacuum/Vacuum.plcproj          |  430 ++
 .../3.3.0.0/tc2_standard.compiled-library          |  Bin 0 -> 40065 bytes
 .../3.3.10.0/tc2_system.compiled-library           |  Bin 0 -> 145473 bytes
 .../3.3.10.0/tc2_utilities.compiled-library        |  Bin 0 -> 453424 bytes
 .../3.3.0.0/tc3_interfaces.compiled-library        |  Bin 0 -> 20041 bytes
 .../tc3_module/3.3.6.0/tc3_module.compiled-library |  Bin 0 -> 62830 bytes
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Administrator@h0vacmr MINGW32 ~/Desktop/lho-vacuum (main)
H1 CAL (CAL)
joseph.betzwieser@LIGO.ORG - posted 11:18, Tuesday 01 July 2025 (85461)
Updating pydarm to release 20250701.0 
I'm followed the pydarm deployment instructions here, to update the LHO pydarm install.

This is the 20250701.0 tag for pydarm, which includes a bug fix for uncertainty budget generation for C01.

This is not the default cds conda environment, but the default you get when typing pydarm at a command line, or specifically invoking by running "conda activate /ligo/groups/cal/conda/pydarm".
H1 SUS
jeffrey.kissel@LIGO.ORG - posted 10:57, Tuesday 01 July 2025 (85460)
H1SUSETMX M0 Damping Loop Open Loop Gain TFs 
J. Kissel

We're on a campaign to complete the collection of up-to-date top mass open loop gain TFs for the damping loops (see inventory prior to today in LHO:85289). The QUAD main M0 chain had never been measured, and thus had no tuned-excitation templates to start from, but the ETMY reaction R0 chain had been, and the drive chains and plant are quite similar. So, I've copied over the ETMY R0 templates for the Open Loop Gain TFs and renamed, and ran a "sed -i" to change them to ETMX R0 templates, and hit "go." It worked! Some minor adjustments were needed; e.g. some DOFs needed their gain reduced, and a few resonant gain filters Q reduced.

Here's the set of measured new templates committed to the svn in the following location. 

Since the excitation depends on the damping filters installed, I attach a screenshot of the damping loop MEDM screen during the measurement.
    /ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMX/SAGM0/Data
        2025-07-01_1530_H1SUSETMX_M0_WhiteNoise_L_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1530_H1SUSETMX_M0_WhiteNoise_P_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1530_H1SUSETMX_M0_WhiteNoise_R_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1530_H1SUSETMX_M0_WhiteNoise_T_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1530_H1SUSETMX_M0_WhiteNoise_V_0p01to50Hz_OpenLoopGainTF.xml
        2025-07-01_1530_H1SUSETMX_M0_WhiteNoise_Y_0p01to50Hz_OpenLoopGainTF.xml

I'll make comments about the *results* of the measurement in a separate aLOG.
Images attached to this report
LHO VE
david.barker@LIGO.ORG - posted 10:51, Tuesday 01 July 2025 (85459)
Tue CP1 Fill

Tue Jul 01 10:12:41 2025 INFO: Fill completed in 12min 37secs

 

Images attached to this report
H1 SUS (SUS)
corey.gray@LIGO.ORG - posted 09:46, Tuesday 01 July 2025 (85457)
SDF Diff Post-In-Lock SUS Measurement This Morning

This morning, while waiting for Maintenance, noticed that after the In-Lock SUS Measurement, we did not "automatically" return to Observing (which would only be a few min due imminent Maintenance).  Turns out there was an ITMx SDF Diff for (H1:SUS-ITMX_L3_LOCK_L_TRAMP, see attached). 

Since it was starting to get hectic in here leading up to Maintenance, I did not do anything about this SDF and kept H1 out of Observing.

Images attached to this report
H1 PSL
jason.oberling@LIGO.ORG - posted 09:05, Tuesday 01 July 2025 - last comment - 11:55, Tuesday 01 July 2025(85456)
PSL FSS RefCav Remote Beam Alignment Tweak

The FSS RefCav TPD has been falling, so this morning I tweaked the beam alignment into it from the Control Room.  With the IMC off the TPD was ~0.745 V, and after the alignment tweak the TPD was ~0.813 V (see attached plot).  I also attached a screeshot of the PSL Quad Display after the alignment tweak.  Corey relocked the IMC, and with the IMC locked the RefCav TPD is ~0.810 V (it's normal for there to be a slight difference in RefCav TPD with the IMC locked and unlocked).

This TPD is not as high as Ryan was able to get on June 11th, when this was last done.  Further, the RefCav Refl spot is different from that time as well (lower left image on the Quad Display picture).  This likely means things on the table are moving, which tends to happen when the weather changes.  The TPD is looking good for now, but we will continue to monitor this over the coming weeks; an on-table FSS beam alignment may be necessary in the near future, depending on how things change.

Images attached to this report
Comments related to this report
david.barker@LIGO.ORG - 11:55, Tuesday 01 July 2025 (85464)
Link

A reminder that the PSL FOM image is archived every hour (https://lhocds.ligo-wa.caltech.edu/cr_screens/archive/png/2025/). The PSL FOM can be found under MM/DD/HH/nuc21-1.png

Attached shows PSL FOM at midnight and 11am today.

Note to operators: the LVEA lights can be seen on the PSL Anteroom camera coming through the wall vents, could be useful as a check the lights have been turned off.

Images attached to this comment
LHO General
corey.gray@LIGO.ORG - posted 07:38, Tuesday 01 July 2025 (85454)
Tues DAY Ops Transition: Maintenance Day

TITLE: 07/01 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Oli
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 6mph Gusts, 4mph 3min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.05 μm/s
QUICK SUMMARY:

H1 is currently on a 9+hr lock and dropped out of OBSERVING from 421-437 for the Magnetic Injections this morning (back in Observing).  H1's range has hovered around 132Mpc for this lock.  Overnight, Low microseism and winds.  21 min until Maintenance!

H1 CDS
erik.vonreis@LIGO.ORG - posted 06:31, Tuesday 01 July 2025 (85453)
Workstations updated

Workstations updated and rebooted. This was an os-packages update.  Conda packages were not updated.

H1 SQZ
oli.patane@LIGO.ORG - posted 03:00, Tuesday 01 July 2025 (85452)
Ops OWL Intervention pt 2

Called again due to SQZ being unlocked, keeping us out of Observing. SQZ MANAGER was stuck in LOCK_LO_FDS with the message "Beam diverter is open but no 3MHz on OMC, could be an alignment problem". Referencing my alog 82039 from December (I realized after that I should've also been looking to maximize H1:SQZ-OMC_TRANS_RF3_DEMOD_RFMON while adjusting sliders) when Vicky helped fix this issue, I trended back ZM4 and ZM6 and noticed that they had moved a lot in the past  day. I picked the time 2025-06-30 20:30:15 UTC as my driftmon reference time since the squeezer had been locked then and the pointing looked like it was the most consistant with the past few days. I took SQZ_MANAGER to NO_SQUEEZING, then adjusted the sliders for ZM4 and ZM6 until they were pointing in the same way, and we were able to lock wtihout issue.

Images attached to this report
H1 SQZ
oli.patane@LIGO.ORG - posted 23:25, Monday 30 June 2025 - last comment - 23:33, Monday 30 June 2025(85450)
Ops OWL Intervention

I got called for the same issue that Tony and Sheila had earlier today where the SHG PZT hit its voltage limit. I followed the very clear instructions given in that alog and just adjusted the PZT slider, and we were able to lock the SHG. I accepted the sdf for the SHG PZT offset.

Images attached to this report
Comments related to this report
oli.patane@LIGO.ORG - 23:33, Monday 30 June 2025 (85451)
Link

After this, I quickly popped out of Observing to run SQZ ANG Adjust to try and get the range higher.

H1 General
anthony.sanchez@LIGO.ORG - posted 22:11, Monday 30 June 2025 (85449)
Ops EVE Shift End

TITLE: 07/01 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Oli
SHIFT SUMMARY:
SQZr trouble at the start of the lock but recovered and got to Observing at 00:07 UTC.

H1 was locked fine for 4 hours and 35 Minutes.
Then all the sudden Unknown Lockloss at 2025-07-01 03:56:04 UTC.

I tried to allow H1 to relock itself but it wanted me to find ASL-Y arm by hand and then seemed to get trapped in a PRMI loop. So after about 30 Minutes I did an Initial Alignment.
This did allow for a quick lock of DRMI_1F. 
H1 is currently at ENGAGE_SOFT_LOOPS and locking Quickly.  


LOG:

Start Time System Name Location Lazer_Haz Task Time End
00:25 PCAL F Llamas PCAL Lab yes Settign up measurements 01:13
H1 General (Lockloss)
anthony.sanchez@LIGO.ORG - posted 21:50, Monday 30 June 2025 (85448)
Lockloss from NLN

Unknown lockloss @ 3:56:07 UTC
No noticeable Seismic activity.
No PI ring Ups.
No saturations aside from HAM6 from the Fast Shutter.

Images attached to this report
H1 CDS (CDS, SEI)
patrick.thomas@LIGO.ORG - posted 12:13, Tuesday 10 June 2025 - last comment - 11:59, Tuesday 01 July 2025(84928)
odd cabling on h1brsey 
I went down to end Y to retrieve the usb stick that I remotely copied the c:\slowcontrols directory on h1brsey to, and also to try to connect h1brsey to the kvm switch in the rack. I eventually realized that what I thought was a vga port on the back of h1brsey was probably not, and instead I found this odd seeming wiring connected from what I am guessing is a hdmi or dvi port on the back of h1brsey, to some kind of converter device, then to a usb port on a network switch. I'm not sure what this is about, so I am attaching pictures.
Images attached to this report
Comments related to this report
patrick.thomas@LIGO.ORG - 09:41, Thursday 12 June 2025 (84994)
Link 

A work permit has been filed to remove this cabling and put h1brsey on the kvm switch in the rack.
patrick.thomas@LIGO.ORG - 11:59, Tuesday 01 July 2025 (85466)
Link 

This has been completed.
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