TITLE: 06/11 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 140Mpc
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 11mph Gusts, 5mph 3min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.18 μm/s
QUICK SUMMARY:
H1 is still locked 8 Hours and 30 minutes later!
All systems seem to be functioning.
There was talk of doing a calibration measurement, Which I started to do right after making sure there wasn't anyone still inside working the LVEA.
I ran a PCAL BroadBand with this command:
pydarm measure --run-headless bb
2025-06-11 07:44:58,555 config file: /ligo/groups/cal/H1/ifo/pydarm_cmd_H1.yaml
2025-06-11 07:44:58,571 available measurements:
pcal: PCal response, swept-sine (/ligo/groups/cal/H1/ifo/templates/PCALY2DARM_SS__template_.xml)
bb : PCal response, broad-band (/ligo/groups/cal/H1/ifo/templates/PCALY2DARM_BB__template_.xml)
The BroadBand finished. But I did not run the Simulines. It was believed by the Calibration gurus that we don't need it before Observing because our calibration .
"monitoring lines show a pretty good uncertainty for LHO this morning: https://gstlal.ligo.caltech.edu/grafana/d/StZk6BPVz/calibration-monitoring?orgId=1&var-DashDatasource=lho_calibration_monitoring_v3&var-coh_threshold=%22coh_threshold%22%20%3D%20%27cohok%27%20AND&var-detector_state=&from=1749629890225&to=1749652518797 Roughly +/-2% wiggle "
~Joe B
Clicked the button for Observing, And we went right into observing with out any SDF issues!
Went into observing at 14:57 UTC
There are messages though mostly from the SEI system, all of which are Setpoint changes see SPM DIFFS for differences for HAMs 2,3,4,5.
But these have not stopped us from getting in to Observing.
I have attached a screenshot of the broadband measurement from this morning. It shows that the calibration uncertainty is within +-2%, which means that our new calibration is excellent!
For those who want to plot the latest PCAL broadband, you can use a template that I have saved in /opt/rtcds/userapps/release/cal/h1/dtt_templates/PCAL_BB_template.xml (aka [userapps] cal/h1/dtt_templates/)
In order to use this template, you must find the GPS time of the start of the broadband measurement, which I found today by converting the timestap in Tony's post above into GPS time. This template pulls data from NDS2 because it uses GDS, so you will also need to go to the "Input" tab, and put your current GPS time in the "Epoch stop" entry that is within the "NDS2 selection" box. The current time will hopefully be after the start time of the broadband measurement, so that will ensure that the full span of the data you need is requested from NDS2. If you don't do this, the template will give you an error if you try to run.
