TITLE: 10/28 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Camilla (DAY)
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 4mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.11 μm/s
QUICK SUMMARY:

• We're locked at NLN waiting on the ADS to converge to go into observing
• All systems look good, we're currently riding through a small earthquake
• High frequency noise seems higher than usual
• ITMY8 is slowly rising and has been during each lock today it seems, I may give the gain a sign change

Lockloss after being in NLN for 5 minutes. 1382565549.  Hadn't yet got into Observing after 20:46UTC lockloss 73799. 

Third lockloss of the shift. No obvious reason again, environment, LSC and ASC signals look fine. 

LVEA temperatures have a 0.5deg excursion but looks to be turning around, plot attached. The outside temperatures have changed a lot this week and we were seeing smaller excursions on Thursday/Friday.  Tagging FMCS.

After being at NLN for 1h30. 1382561229. No obvious reason for lockloss: environment, LSC and ASC signals look fine.

After IFO locked 11h29m. 1382549720 ~6Hz wobble in DARM before lockloss.

Sat Oct 28 10:10:35 2023 INFO: Fill completed in 10min 32secs

TITLE: 10/28 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 151Mpc
OUTGOING OPERATOR: Austin
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 1mph Gusts, 0mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.09 μm/s
QUICK SUMMARY:

IFO has been locked for 9 hours. Range seems to have dropped in last hour, plot attached, unsure why. Environment and squeezing is fine.

The TCSX laser unlocked this morning at 13:38 UTC 10/28. Before I had a chance to get into NoMachine to check it out, the laser relocked itself again at 13:45 UTC.

TITLE: 10/28 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC

STATE of H1: Observing at 151Mpc

INCOMING OPERATOR: Austin
SHIFT SUMMARY: Two large close earthquake plus an unknown lockloss at a highup state made relocking take quite a while. We've been locked for almost an hour as of 07:00UTC

03:10 lockloss from a 5.0 in Canada, I held us in down till the ground motion subsided (~10 minutes, then sei went back to calm at 03:21)

After the EQ, there was no light on green arms. I did a restore on the QUADS (ETM, ITM, TMS) to when we were locking for the previous lock (10/26 13:30, it barely changed the sliders) and then I tapped ETM{X,Y} in pitch a bit and then the beams appeared and increase flashes took care of the rest. The COMM & DIFF beatnotes were terrible at LOCKING_ALS, 24 & 18 and the ITM Error signals looked very off, so I decided to go down to run an initial alignment at 03:47 just to hear that theres another incoming earthquake from Canada, from the same spot as previously and this ones even bigger! I decided to hold off on starting the IA till after the EQ passed.

03:53 EQ mode activated, back to CALM at 04:13

04:13 started IA, finished at 04:33

05:14 lockoss at LASER_NOISE_SUPRESSION

06:25 in Observing

LOG:

DCPD saturation then lockloss during LASER_NOISE_SUPRESSION

Lockloss from a large close earthquake, a 5.0 in Northern BC, Canada (linear velocity of 12!) We went to EQ mode 40 seconds after the LL

I activated Jenne's DARM2 boost from LHO:73745 (in FM2) at 10/27/2023 13:25:54. The FM2 change has been saved in SDF.

The file that includes this new DARM2 boost filter is at /opt/rtcds/lho/h1/chans/filter_archive/h1omc/H1OMC_1382307261.txt. I've copied it to /ligo/svncommon/CalSVN/aligocalibration/trunk/Common/H1CalFilterArchive/h1omc for the Cal group. The file has been committed to the SVN. The corresponding repo has been updated on the LHO cluster under the cal account too.