Sun Jan 05 10:13:05 2025 INFO: Fill completed in 13min 2secs

TCtrip -50C, TCmins [-64, -34] OAT (4C, 38F).

Est. TCA-min was -62.

Lockloss @ 01/05 17:37 UTC due to earthquake

Waiting for earth to calm down before trying to relock.

TITLE: 01/05 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Tony
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 4mph Gusts, 2mph 3min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.38 μm/s
QUICK SUMMARY:

Currently relocking and at FIND_IR. We had been locked for 14.5 hours before having a lockloss a bit ago at 01/05 15:17UTC

TITLE: 01/05 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 158Mpc
INCOMING OPERATOR: Tony
SHIFT SUMMARY: We've been locked for over 5 hours.
LOG: No log

"pump fiber rej power in ham7 high, align fiber pol on sqt0" notification on SQZ_OPO_LR

00:46 UTC observing

TITLE: 01/05 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Currently relocking and at MAX_POWER. Most of today we were Locked and Observing, but this one lockloss so far hasn't been too bad to relock from. Only issue I had was that ALSY took forever to lock and I ended up having to adjust it manually just a couple of steps.
LOG:

19:30 Dropped Observing and went to NLN_CAL_MEAS for calibration measurements
20:04 Back to NLN and Observing

22:50 Lockloss
    - I had to touch ALSY because it couldn't lock after 30 minutes of trying, even with SCAN_ALIGNMENT. Just needed to be adjusted a tiny bit in P
    - Ran an initial alignment
    - Continued relocking

Closes FAMIS 26351, last checked in alog82033

Nothing of note on the outbuildings or CS fans.

TITLE: 01/05 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Oli
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 4mph Gusts, 2mph 3min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.36 μm/s
QUICK SUMMARY:

• Currently relocking with DRMI locked, we were locked for 18.5 hours previously
• Wind is low, 2ndary microseism is decreasing

Lockloss @ 01/04/25 22:50 UTC after 18.5 hours locked. Not sure of the cause yet.

Currently Observing at 161 Mpc and have been Locked for almost 18 hours. Nothing to note.

Calibration measurements taken during the regular Saturday calibration time. We had been locked for over 15 hours at the time of starting the measurements.

Calibration monitor screen

Broadband (01/04/2025 19:32:45 - 19:38:06 UTC)

../PCALY2DARM_BB/PCALY2DARM_BB_20250104T193245Z.xml

Simulines (01/04/2025 19:40:14 - 20:03:20 UTC)

../DARMOLG_SS/DARMOLG_SS_20250104T194014Z.hdf5
../PCALY2DARM_SS/PCALY2DARM_SS_20250104T194014Z.hdf5
../SUSETMX_L1_SS/SUSETMX_L1_SS_20250104T194014Z.hdf5
../SUSETMX_L2_SS/SUSETMX_L2_SS_20250104T194014Z.hdf5
../SUSETMX_L3_SS/SUSETMX_L3_SS_20250104T194014Z.hdf5

Sat Jan 04 10:19:24 2025 ALERT: Fill done (errors) in 19min 20sec

TC-A started high again (+25C) and didn't quite reach the -60C trip, it flatlined at -58C, so I manually cancelled the fill. Discharge line pressure suggests it was a good fill.

OAT (-0.6C, 31F)

Trip has been increased to -50C for tomorrow's fill.

TITLE: 01/04 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 157Mpc
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 0mph Gusts, 0mph 3min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.43 μm/s
QUICK SUMMARY:

Currently Observing and have been Locked for 11.5 hours. Secondary microseism is high at the 90th percentile but holding steady, and wind is low. Super foggy and icy outside on the roads out here and there's snow on Laliik (Rattlesnake Mountain)!

TITLE: 01/04 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 162Mpc
INCOMING OPERATOR: TJ
SHIFT SUMMARY: 1 lockloss from an earthquake, easy re-lock.
LOG: No log.

We've been locked for almost 2 hours, we lost the long lock to an earthquake.  Relocking was straight forward but took longer due to the high 2ndary motion.

• 02:15 UTC lockloss
• 02:18 I started an initial alignment as Green arms looked quite far out as we've been locked for 46.5 hours
• 02:59 UTC ITMX cps glitch and ST1/2 watchdog trip (tagging SEI)
• 04:21 UTC Observing

02:15 UTC lockloss, likely due to a 5.8 from Ethiopia.