J. Kissel, J. Warner
WP 11821
ECR E2200226
IIET 12161

As Jim and others are starting to build up a good MEDM interface and otherwise use the rest of the HAM1 TT L4C feed-forward infrastructure I installed several moons ago (see 63115 and 63300), we've discovered that I overlooked adding useful test points at the summation point of the DC centering DOFS DC1 and DC2. These "FFHAM1_IN" and "FFTRGT_IN" fast test points, and corresponding EPICs readbacks were added to all the other summation points (CHARD, PRC1, REFLWFS_RF9_I, etc.), I just missed it for the DC centering loops.

Attached are screenshots after they're now in place.

We'll install these by recompiling, installing, and restarting the h1asc.mdl front-end model tomorrrow during maintenance.

FAMIS 20025

PMC REFL has been on the rise again for the past 5 days or so, perhaps lining up with a slight increase in the average PMC temp output? Unsure if these are related.

Mon Apr 22 10:12:09 2024 INFO: Fill completed in 12min 5secs

Gerardo confirmed a good fill curbside.

TITLE: 04/22 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 154Mpc
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
    SEI_ENV state: SEISMON_ALERT
    Wind: 4mph Gusts, 2mph 5min avg
    Primary useism: 0.05 μm/s
    Secondary useism: 0.11 μm/s
QUICK SUMMARY:

Happy Earth Day!

Nice night for H1 with lock around 18hrs and clean-range just under 160Mpc & double coincidence w/ L1 for most of this lock (Virgo is in a troubleshooting state for most of this time).

Microseism has been turning around since 24hrs ago and is mostly below the 50th percentile.

TITLE: 04/22 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 156Mpc
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY: Quiet night, we've been locked for  just under 10 hours, PSL Anteroom red dust alarm at 23:32 UTC. I've seen MC1, MC3, and PR3s cameras flash blue a few times. The wind started to calm down around 06:00 UTC and microseism continues to decline.
LOG:

No log

We've been locked for almost 6 hours, the winds picked up and is bleeding into the 0.03 - 0.1 bandwidth. Microseism is decreasing.

TITLE: 04/21 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 158Mpc
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 18mph Gusts, 12mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.16 μm/s
QUICK SUMMARY:

• We've been locked for 1:53, in Observing since 21:08 UTC
• Medium windy outside

TITLE: 04/21 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 154Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:

Nice quiet shift, with one lockloss (which I ran an alignment for, and managed a 168Mpc data point in the last few minutes!).  
LOG:

• 1926 Lockloss (prob wind and/or MX 5.4 eq)
  • Initial Alignment run because first acquisition went to Check Mich, had an ugly PRMI, and tried to automatically return to Check Mich (this was when IA was run).
• 2019 PCal measurements, in/out of PCal lab (francisco)
• 2040 SEI to uSeism state (back to calm at 2140)
• 2108 Observing

H1's been observing for almost 9hrs and winds have leveled out at around 10mph (gusts to 20mph).

Sun Apr 21 10:10:40 2024 INFO: Fill completed in 10min 36secs

TITLE: 04/21 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 50Mpc
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 12mph Gusts, 9mph 5min avg
    Primary useism: 0.05 μm/s
    Secondary useism: 0.17 μm/s
QUICK SUMMARY:

H1's been locked 5hrs and after a quiet few hours, seeing breezes starting to pick up in the last 40min.  There was a MINOR PSL dust monitor alarm at 2am local (during the winds starting during Ryan C's shift.

No plans for Calibration or Commissioning down time today.

TITLE: 04/21 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 26Mpc
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY: After relocking we stayed locked the whole shift, the wind started to pickup around 03:00 UTC.

05:30 UTC Superevent S240421ar

Lock#1

Relocking at green arms, went through prmi, chech_mich then prmi again before we could get DRMI

Lock#2

Strugged to get back up due to the wind knocking ALS out, the forecast has the winds calming down around 10:00UTC

LOG:

Wind was gusting up to 40 mph around the time

https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1397714645

We've been locked for almost 3 hours, range hovering around 160

TITLE: 04/20 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 156Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:

Lockloss Sandwich:  Shift started with a lockloss during the first 30min and a lockloss near the last 30min of the shift.

Also posting  a spectrum of the HAM5 STS seismometer during Richland earthquake---mainly because when Robert walked in the Control Room he was surprised to not see anything on the low-frequency seismic plots on nuc5....but it's mainly because we don't have 1-3Hz up there.  The attached spectrum does show a big bump in that band for sure.  (along with lines at ~7Hz and around 32Hz.) 
LOG:

• 1523 Lockloss
• 1625 Observing
• 1722 Dave phoned in to say he is going to reboot the Alerts system (because he did not receive a text for the CP1 autofill).  This will reset the Lock Clocks on FOM nuc 28 & CDS Overview.
• 2025-2055 PCal testing in lab (Francisco)
  • 2153-2222 Back to change set-up
• 2200 Out of Observing for Saturday Calibration measurement with L1 (and notified Virgo)
• 2225 LOCKLOSS during last steps of simullines measurement :(

TITLE: 04/20 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 2mph Gusts, 1mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.10 μm/s
QUICK SUMMARY:

• Winds calming down
• Lost locking at the end of the CAL measurement, relocking at green arms