TITLE: 06/21 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 138Mpc Lock Acquisition
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 8mph Gusts, 4mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.08 μm/s
QUICK SUMMARY: At 4am Tony turned down the ETM ring heaters 70644,70616. Today we plan to change the IFO input power to 60W, see alog 70497.

VAC, SUS, SEI, CDS, dust monitors okay.

Just lost lock at 15:05UTC, 1371395177

13:18 UTC Lockloss
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1371388721

11:22 UTC Lockloss 22 minutes after turning the ring heaters down.
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1371381773

While referencing alog 70616 I changed
H1:TCS-ETMX_RH_SETUPPERPOWER
H1:TCS-ETMX_RH_SETLOWERPOWER
&&
H1:TCS-ETMY_RH_SETUPPERPOWER
H1:TCS-ETMY_RH_SETLOWERPOWER

all to 1W from 1.2W. Change made at 11:00 UTC.
Changes accepted in SDF at 11:02 UTC.

TITLE: 06/21 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 138Mpc
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 4mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.10 μm/s
QUICK SUMMARY:
IFO Current Status: NOMINAL_LOW_NOISE & OBSERVING
Current Range: 136Mpc
 

TITLE: 06/21 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 138Mpc
SHIFT SUMMARY: One lock loss during the shift that seemed coincident with people going into the LVEA to unplug some test equipment. We've been observing since then for almost 5 hours.
LOG:

• 2335 Started Cal sensing function measurement.
• 0006 Ended
• 0029 Jenne, Naoki to LVEA to unplug cables
• 0031 Lockloss
• 0209 Observing

Naoki, Sheila

As part of noise budget with 75W, we did laser noise injection (frequency noise, intensity noise, jitter noise). Here is the instruction of laser noise injection.

The injection templates are in ligo/gitcommon/NoiseBudget/aligoNB/aligoNB/H1/coupling.

Frequency noise

template: Frequency_excitation.xml

Switch CARM control from REFL A+B to REFL B only:

• REFL A and B both have 9dB digital gain with 75W
• Step down 1dB on REFL A and up 1dB on REFL B until the REFL A gain is 3dB and REFL B gain is 15dB
• Step down REFL A gain down to -32dB 
• Turn off the input 1 switch (REFL_SERVO_IN1EN) for REFL A

Measurement:

• Take the reference without excitation and update the reference
• Plug the cable to the excitation port of CARM CMB in PSL rack and turn on the digital excitation switch (EXC A) of CARM CMB
• Start injection
• After the measurement, turn off the digital excitation switch, unplug the excitation cable, and bring back the CARM control

Intensity noise 

template: ISS_excitation_LF.xml, ISS_excitation_MF.xml, ISS_excitation_HF.xml

• Turn off the 10Hz pole in ISS second loop (PSL-ISS_THIRDLOOP_POLE_MON), and put 1 in the digital excitation gain (PSL-ISS_SECONDLOOP_EXCITATION_GAIN). The 10Hz pole and the digital excitation gain can be accessed from medm screen of ISS second loop as shown in the attached figure
• Take the reference without excitation and update the reference
• Start injection
• After the measurement, bring back the 10Hz pole and the digital excitation gain

Jitter noise

template: IMC_PZT_P_inj.xml, IMC_PZT_Y_inj.xml

• Take the reference without excitation and update the reference
• Start injection

The calibration reports for Friday's and today's sensing function measurements have been uploaded (arx committed) to the LHO cluster under the cal account. The report directories can be viewed directly from the cluster at the links below.

Friday (06/16/2023): https://ldas-jobs.ligo-wa.caltech.edu/~cal/archive/H1/reports/20230616T161654Z/
Tuesday (06/20/2023): https://ldas-jobs.ligo-wa.caltech.edu/~cal/archive/H1/reports/20230620T234012Z/

===== Logs

Today's calibration report taken by TJ (LHO 70635)
Friday's calibration report taken by Ryan Short (LHO 70520)


===== How to commit reports to the cluster
At Jeff's request, I'm including some short instructions for committing new calibration reports to the LHO cluster's cal account. This can be done by anyone in the control room with access to a control room workstation, but, for now, this should be reserved for members of the calibration group. 

The calibration group's uncertainty estimates, which are produced hourly at each site's cluster, depend on the latest GPR results (among other things). The GPR results are bundled within every calibration report [directory] each time new measurements are taken and processed. So every time new calibration measurements are taken and a new report exists, the report and all of its associated files (i.e. the "report directory") need to be 1.) inspected by a member of the calibration group, 2.) tagged as "valid" to let the GPR routine know that it should include the measurement, and 3.) "[arx] committed" to the site cluster's cal account.

Calibration report directory tags are simply empty files located in the report's tags sub-directory. To tag a report as "[GPR] valid]" use:
touch /ligo/groups/cal/H1/reports/<report id>/tags/valid

where <report_id> should be replaced by the report's timestamp. For example, to tag today's report, which has report id 20230620T234012Z, as valid I used the command below.
touch /ligo/groups/cal/H1/reports/20230620T234012Z/tags/valid

Finally, to commit (sync or push) the new report to the site cluster, we use the arx tool:
arx commit 20230620T234012Z

The arx output will display the command's progress as it rsync's each file within the report directory to the appropriate place. Once that's done the report will visible on directly on the site cluster at ldas-jobs.ligo-[w,l]a.caltech.edu/~cal/archive/[H,L]1/reports/<report id>.

Sheila, Brina, Naoki

Before stepping down the input power from 75W to 60W, we did the noise budget injection of laser noise (frequency noise, intensity noise, jitter noise), LSC noise (MICH/PRCL/SRCL), and ASC noise (CHARD P/Y, DHARD P/Y, MICH P/Y). These measurements were done without squeezing. We will make the noise budget based on these measurement soon.

1371342704

Jenne and Naoki went into the LVEA to unplug a cable, but it looks like that knocked us out.

Started at 1635 UTC, just over 2.5 hours into the lock.

Followed the usual instructions on the TakingCalibrationMeasurements wiki, with the command used "pydarm measure --run-headless bb sens pcal" for this measurement.

Seismon was restarted with the correct velocity in H1:SEI-SEISMON_LHO_ML_VELOCITY_{0..5} channels.  The value is now the "Machine Learning" velocity estimate.  Associated channels, H1:SEI-SEISMON_LHO_ML_UNCERTAINTY_{0..5} give an uncertainty to this measurement.

J. Kissel

To help out studies of the end station VEA temperatures and HVAC system, I've created templates of the relevant channels similar to those described in LHO:70284, but for the X and Y-end VEAs.

You can find them in 
    /ligo/home/jeffrey.kissel/Templates/NDScope/
        xvea_temp_study.yaml
        yvea_temp_study.yaml

TITLE: 06/20 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
SHIFT SUMMARY: Busy maintenance morning. Locked by early afternoon and now working on some commissioning tasks.

Lock #1:

• Initial alignment from 19:21-19:59
• Locking went smoothly and unassisted
• NLN @ 20:46

LOG:

TITLE: 06/20 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 7mph Gusts, 4mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.09 μm/s
QUICK SUMMARY: We've been locked for over 2 hours. We are currently in commissioning to run measurements while we prepare for the power down.

WP11273 LSC RIN channels

Daniel, Ryan, Dave:

Installed Daniel's new h1lsc model which adds RIN testpoint channels, making one of them a DAQ fast channel. DAQ restart was required.

Two h1lsc restarts were needed, the second to fix a minor issue with matlab simulink file.

WP11256 Upgrade EY HEPI pump controller to Beckhoff

Fernando, Fil, Jim, Patrick, Ryan, Dave:

The Beckhoff EY HEPI pump controller was activated today and the original "Ben box" was turned off.

The old EY channels were removed from the DAQ and the new channels were added. A DAQ+EDC restart was required.

The h1hpipumpctrlsdf slow controls SDF was updated and restarted on h1ecatmon0.

WP11269 Upgrade Seismon

Jim, Erik, Dave:

Erik installed a new version of seismon. This added 18 channels to the DAQ INI. DAQ+EDC restart was required.

DAQ Restarts

Dave:

The DAQ was restarted twice today. First soon after Daniel's new h1lsc model was installed to add one fast channel to the frame.

The second DAQ restart was coupled with an EDC restart, to add new Seismon channels and the new EY HEPI pump controller channels.

Plot 1 shows the dark noise in LSC-REFL_A_LF and REFL_B_LF (yellow/black), with 10W laser input with ISS second loop (red/blue) and w/o ISS second loop (magenta/cyan). The photocurrent in REFL_A and REFL_B was about 16mW each for the 10W measurements. It will turn to about 10mW in full lock. So, we are now about a factor 4 above dark noise.

Plot 2 shows the RIN of the 2 REFL PDs and their average, together with the ISS second loop sensors. The ISS inner and outer sensors have about 7-8mW of light each, so the measurements are limited by the shot noise of the inner PD. In full lock these sensors see about 60mW.