Mid X alarmed this morning due to low temperature in the main room. The heating coil for this space was limited to a 95 degree discharge air temperature in the tuning parameters. This meant even with a 100% heating call in the space, the coil was only allowed to run ~50% to prevent it from putting out over 95 F. I increased the discharge air temperature limit from 95 F to 115 F to allow the heater to reach 100% capacity. Space has returned to setpoint. 

FAMIS tasks 24847 and 24871, WP 11603

Procedure checklist for both stations completed.  No issues were identified at this time.

MX: Scroll pump hours: 212.3

       Turbo pump hours: 122

       Crash bearings: 100%

EX: Scroll pump hours: 6378.6

       Turbo pump hours: 278

       Crash bearings: 100%

[Dave, Erik]

CDS Login was updated to fix EPICS problems from a previous update which crashed the EDC.  See here for details on the crash: https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=74959

Lockloss alerts were temporarily down during the upgrade.

Workaround used to keep things running in the interim wree removed.

On 26th Dec 75041, IFO unlocked during ETMX stage of in-lock charge measurements in 75171  I adjusted guardian code to make the transition more robust.

The ITMX, ITMY, ETMY measurements did run, analysis attached. ETMX hasn't ran since November. We will try to run them all this week in commissioning time.

Note that the x-axis of the plots isn't a to-scale time axis, we will try and change this.

Tue Jan 09 10:10:24 2024 INFO: Fill completed in 10min 20secs

Gerardo confirmed a good fill curbside.

We updated the tzdata and leapseconds database on some frozen infrastructure systems, including the FE computers, DAQD, and guardian machines.  This was done by an apt-get install tzdata, not a general churn in the software versions.

Vicky noticed that H1:SQZ-SHG_FIBR_REJECTED_DC_POWERMON is high, this is the rejected polarization polarization sent though the OPO pump fiber and measured in HAM7, trend over time attached.

Followed instructions in 71761 to reduce it from 0.55 to 0.03, plot. With ISS on, H1:SQZ-OPO_ISS_CONTROLMON is at 4.1V

With SQZ_OPO_LR in DOWN, H1:SQZ-OPO_REFL_DC_POWER increased from 2.2 to 2.3. Our maximum after on table AOM and fiber alignment is around 2.9V (last done August, September and November 74479).

Lockloss at 08:35UTC from an earthquake, high winds as well at the time.

TITLE: 01/09 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Wind
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
    SEI_ENV state: MAINTENANCE
    Wind: 33mph Gusts, 21mph 5min avg
    Primary useism: 0.14 μm/s
    Secondary useism: 0.83 μm/s
QUICK SUMMARY: Lost lock 7.5 hours ago and Ryan was unable to relock with the high wind and high useism. Maintenance activities have started.

Workstations were updated and rebooted.  This was an OS package update only.  Conda packages were not updated.

H1 called for assistance at 10:15UTC, it seems to be stuck in IA as we're still ringing down from an earthquake and winds have picked up which is making locking Yarm a struggle.

TITLE: 01/09 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 156Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Quiet shift with one superevent. H1 has now been locked for almost 8 hours.

• H1 relocking following earthquake during previous shift
• 00:17 Reached NLN
  • Taking time fo some SQZ adjustments - alog75257
• 00:49 Started observing
• 05:04 Superevent S240109a

State of H1: Observing at 160Mpc

H1 has been locked for almost 4 hours. Quiet night so far with just one minor earthquake passing through.

Full DQ shift report is here.

• Duty cycle: 70.90%, 25.88%, 83.18%, 93.90%, 38.53%, 0%, 79.99%. Week average: 56.03%
• BNS range: from 150~163 Mpc. Most time is around 155~160 Mpc. Some lockloss due to commisioning and due to 7.4 earthquake in Japan at 07:21 UTC on Monday 2024-01-01.
• Fscan-observing: line counts are very fluctuating during this week (around 380-630). On Monday 2024-01-01 line count is above mean + stddev around 630 and some are below mean - stddev (2024-01-02 and 2024-01-05). 
• Hveto:
  • No rounds completed above threshold on Monday 2024-01-01 and Tuesday 2024-01-02. 
  • The most common winner is H1:PEM-EX_VMON_ETMX_ESDPOWER48_DQ which appeared 2 times in this week.
• PyCBC:
  • There are total 9 events with new SNR>10 for PyCBC live medium.
  • There are total 32 events with new SNR>10 for PyCBC live short.
  • The event with highest new SNR is 19.826 from PyCBC live short on Wednesday 2024-01-03 with GPS time 1388299488.910.

FAMIS 26273, last checked in alog75087

Looks like MY fans were switched 5 days ago, but otherwise all fans look okay.

As in 74872 and 74741, I have taken PEM_MAG_INJ and SUS_CHARGE from WAITING to DOWN so that they do not run tomorrow. Instead, tomorrow Louis and Sheila will try the risky DARM loop swaps and calibration from 7amPT. To re-enable the automated measurements, the nodes should be requested to INJECTIONS_COMPLETE before next Tuesday.

We've been seeing SQZ angle not optimizing correctly (75245, 75151). At 20:05 Ibrahim took us into commissioning and I tried to change ADF frequency H1:SQZ-ADF_VCXO_FREQ_SET from 1300Hz to 200Hz. The ADF line didn't move from the 1300Hz region, just became noisy when I changed it. PLL didn't lock. Unsure why the ADF wouldn't move, I also tried 800Hz to no avail.  ADF frequency hasn't successfully been changed since Daniel adjusted the model in May 69453.