TITLE: 05/12 Eve Shift: 2300-0800 UTC (1600-0100 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Currently Observing and have been Locked for 3.5 hours. During relocking we were still having the DRMI kick issues, but after going through a couple times slowly we made it though; hopefully that isn't an issue overnight.
LOG:

23:00 Detector Observing and Locked for almost 7 hours

02:42 Superevent s240512r (two candidates in a row for me!)

02:46 Lockloss
    03:10 Lockloss from ENGAGE_DRMI_ASC after two beamsplitter saturations
    03:21 Following Ibrahim and Sheilas' Temporary Solution 2, I paused at ACQUIRE_DRMI_1F and lowered PRCL1 gain
        - Continued step by step through the states slowly, especially ENGAGE_DRMI_ASC and TURN_ON_BS_STAGE2, but it was all for naught
        03:26 Lockloss from OFFLOAD_DRMI_ASC
    03:38 I started an initial alignment because it was trying to cycle through CHECK_MICH_FRINGES multiple times (even though it had already caught DRMI 1F three times since the NLN lockloss!)
    04:01 Initial alignment complete, going up to ACQUIRE_DRMI_1F
        - Again lowered PRCL1 gain and stepped through each state up to OFFLOAD_DRMI_ASC, then continued when we didn't lose lock (I forgot to put the gain back but I did it here and we were okay), and t
04:44 NOMINAL_LOW_NOISE
04:47 Observing

Lockloss @ 05/12 02:46 UTC, five minutes after a superevent candidate (S240512r)

Closes FAMIS#26300, last checked in 77519

Corner Station Fans (attachment1)
- FAN4 1 (attachment2) is fully within range, but looks to have started oscillating sharply over the past few days. It makes sense that the fan would grow louder because of the jump in temperature over the last few days, but for whatever reason the oscillations are also much sharper than they were last year (attachment3). I am guessing this difference is just from a change made to the fan/controls but still wanted to note it.
- All other fans are looking normal and within range.

Outbuilding Fans (attachment4)
- All fans are looking normal and within range.

Closes FAMIS#25990, last checked 77540

Things of note:
- ITMY ST1 V2 - slightly elevated compared to previous measurements
- BS ST2 H1, H2, and H3 - significant hump between 5 and 11 Hz
- ETMX ST1 V1 - slightly elevated
- ETMX ST2 H1, H2, and H3 - significant hump between 6 and 15 Hz
- ETMY ST2 H1, H2, and H3 - significant hump between 6 and 9.5 Hz

TITLE: 05/11 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 152Mpc
INCOMING OPERATOR: Oli
SHIFT SUMMARY: Mostly uneventful day just with one lockloss and a break for calibration sweeps.

• 14:57 - Lockloss - alog77779
• 16:11 - Reached NLN
• 16:14 - Started observing
• 19:30 - Dropped observing for calibration sweeps - alog77782
• 19:59 - Resumed observing

LOG:

No log for this shift.

TITLE: 05/11 Eve Shift: 2300-0800 UTC (1600-0100 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 23mph Gusts, 18mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.12 μm/s
QUICK SUMMARY:

Observing and Locked for 7 hours. Everything looking good!

H1 dropped observing from 19:30 to 19:59 UTC (postponed an hour to wait for a thermalized IFO) for calibration sweeps in coordination with L1 and V1.

Broadband start:

PDT: 2024-05-11 12:31:00.000000 PDT
UTC: 2024-05-11 19:31:00.000000 UTC
GPS: 1399491078.000000

Simulines start:

PDT: 2024-05-11 12:37:00.000000 PDT
UTC: 2024-05-11 19:37:00.000000 UTC
GPS: 1399491438.000000

Files written:

2024-05-11 19:58:50,885 | INFO | File written out to: /ligo/groups/cal/H1/measurements/DARMOLG_SS/DARMOLG_SS_20240511T193721Z.hdf5
2024-05-11 19:58:50,893 | INFO | File written out to: /ligo/groups/cal/H1/measurements/PCALY2DARM_SS/PCALY2DARM_SS_20240511T193721Z.hdf5
2024-05-11 19:58:50,897 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L1_SS/SUSETMX_L1_SS_20240511T193721Z.hdf5
2024-05-11 19:58:50,902 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L2_SS/SUSETMX_L2_SS_20240511T193721Z.hdf5
2024-05-11 19:58:50,908 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L3_SS/SUSETMX_L3_SS_20240511T193721Z.hdf5
 

Sat May 11 10:12:44 2024 INFO: Fill completed in 12min 40secs

Lockloss @ 14:57 UTC - link to online lockloss tool

No obvious cause; looks like ETMX L3 saw the first motion.

TITLE: 05/11 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 156Mpc
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 9mph Gusts, 4mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.11 μm/s
QUICK SUMMARY: H1 has been locked and observing for 11.5 hours. Several short GRB notifications overnight, as expected with the aurora.

• Wind and microseism are low
• All other systems nominal

The May 10 CME impact on Earth's magnetic field has produced a category G5 geomagnetic storm event, yielding magnificent aurorae here in the Tri-Cities and the world over.  Photos attached.

TITLE: 05/11 Eve Shift: 2300-0800 UTC (1600-0100 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Currently Observing and have been Locked for 5 hours. We had had a lockloss when I first came in and then another lockloss a couple of hours later. Relocking was overall pretty hands-off, with the same relocking issues we've been having lately (lockloss from LOCKING_ALS and ENGAGE_DRMI_ASC). We had a superevent S240511i at 03:15 UTC, a little over one minute after getting back into Observing after the second lockloss (phew)!
LOG:

23:01UTC Detector relocking after lockloss
23:12 Lockloss from LOCKING_ALS
23:14 Lockloss from LOCKING_ALS
23:24 Lockloss from PRMI_ASC
00:16 NOMINAL_LOW_NOISE
00:18 Observing

01:14 Lockloss
01:26 Lockloss from ENGAGE_DRMI_ASC
01:29 Started an Initial Alignment
01:54 Initial Alignment done, relocking
03:11 NOMINAL_LOW_NOISE
03:13 Observing
03:15 Superevent S240511i https://gracedb.ligo.org/superevents/S240511i/view/

08:10 Have been locked for 5 hours

Lockloss @ 05/11/2024 01:14 UTC

TITLE: 05/10 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Oli
SHIFT SUMMARY: SQZ issues were fixed this morning so H1 has recovered some range since last night. Two locklosses today, but otherwise quiet. H1 is currently relocking at ACQUIRE_DRMI.

• 14:53 - Dropped observing to troubleshoot SQZ issues - alog77755
• 15:36 - Resumed observing with improved range
• 18:35 - Lockloss - alog77764
• 19:50 - Reached NLN
• 19:56 - Started observing
• 23:01 - Lockloss - alog77768

LOG:

Lockloss @ 23:01 UTC - link to online lockloss tool

No immediately obvious cause; DARM1 saw the first motion as usual.

Lockloss @ 18:35 UTC - link to online lockloss tool

No immediately obvious cause; ETMX saw the first erratic movement as usual.