The timing system has a corner station error: the MSR atomic clock 1PPs difference went from -159nS to 0.11S at 19:31 PDT this evening.

This signal is for verification purposes and does not drive the timing system. We will take a look at what has happened to it in the morning.

LOCKLOSS @ 2:02, had a SRM saturation right before the lockloss. Seeing some movement in INP1 P and some LSC instability as well.

Famis 18649

Famis Task: 23750

I wanted to just swap the pumps with the one below the table but couldn't reach the pump rebuild log https://dcc.ligo.org/LIGO-Q2200010 because i didn't have any internet at the end stations and couldn't determine if the spares had been rebuilt already or not.

EX
Dust pump number 2950 Not running and Unplugged.
I checked the Log and noticed that pump 2950 only lasted 2 months. But the pump below the table was newly built around the same time.
So I'm going to Leave the Famis Task open until I can swap out the pump.

EY
Dust pump was Running pressure was 19.5 inHg.
No temps over 151F .

Corner Station
Dust pump number 1194 Power not switched on.
Spare 1119313238 has also been rebuilt and is ready to be swapped out.

I will try to swap these out Tomorrow or Tuesday.

TITLE: 06/11 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 136Mpc
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 13mph Gusts, 11mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.10 μm/s
QUICK SUMMARY:

Took over the IFO as it was relocking.
NOMINAL_LOW_NOISE reached at 15:38 UTC
Observing at 15:50 UTC

Lockloss 17:48 UTC
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=70342

Relocking: No initial Alignment done
NOMINAL_LOW_NOISE Reached 18:41 UTC
Observing  18:45 UTC

Lockloss 21:45 UTC
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=70343

Relocking : No Initial alignment.
NOMINAL_LOW_NOISE reached at 22:42 UTC
Observing at 22:54

TITLE: 06/11 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 137Mpc
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 11mph Gusts, 6mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.10 μm/s 
QUICK SUMMARY:

- H1 has been locked and in observing as of 22:42

- CDS/SEI ok, SEI motion is a little high - will monitor

Lockloss most likely caused by ground motion:
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1370555148

Peakmon plots attached.
There was no Earthquake warning just a sudden Lockloss. The Seismic foms showed a sharp but small increase which pointed me in the direction of looking for Seismic info. There was a sudden increase in H1:ISI-GND_STS_ITMY_Z_BLRMS_30M_100M and other Z axis BLRMS.
I am surprised that the Lockloss Analysis tool didn't tag it as an Earthquake.

Lockloss URL:
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1370540915

The Lockloss ndscopes show that H1:ASC-CSOFT_P_OUT16 and H1:ASC-DHARD_P_OUT16 are elevated relative to the other plots on the screen, But trending those channels back an hour or even further in the lock shows the same behaivor during the middle of the lock. Also comparing those values to the live data of a current lock they all seem to be within a reasonable and tolerable range of motion for H1 in a NOMINAL_LOW_NOISE & Observing state.

The Lockloss URL shows some saturation plots that may point to ETMX L3 and to H1:SUS-ETMX_L3_MASTER_OUT.
Perhaps this is the actuation point fo ETMX and is just pointing out the obvious. 

Cause is Undetermined.

Sun Jun 11 10:11:14 2023 INFO: Fill completed in 11min 13secs

TITLE: 06/11 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 6mph Gusts, 2mph 5min avg
    Primary useism: 0.07 μm/s
    Secondary useism: 0.08 μm/s
QUICK SUMMARY:
There is still some ground motion happening. be we are going to try to relock.

IFO Current status: Relocking due to earthquake.

TITLE: 06/11 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
SHIFT SUMMARY: Multiple locklosses overnight from earthquakes.

Lock #1:

• Lockloss @ 10:05 from ground motion: alog

Lock #2:

• Relocking was fully automated; held in OMC_WHITENING for 5 minutes to damp violins
• NLN @ 11:16 and observing @ 11:19
• Switched to new ITMY mode 5/6 damping setting: FM6, FM7, FM10 w/ gain of 0.04
  • This damping setting works well to damp down both modes
• Lockloss @ 14:14 from another earthquake: alog

Lock #3:

• Lockloss @ 14:45 while locking DRMI from a 5.0 earthquake in central Alaska
  • Large spike in both 0.03-0.1 and 0.1-0.3 Hz frequency bands as well as on peakmon; SEI_ENV moved to EARTHQUAKE

Lock #4;

• Relocking is going automatically, just locked DRMI

Handing off to Tony for the day.

LOG:

No log for this shift.

Lockloss @ 14:14 UTC from a magnitude 5.8 earthquake from New Zealand. This lockloss happened at the same time as seismic configuration moved to EARTHQUAKE.

Holding in DOWN for ground motion to settle, then will start relocking.

Lockloss @ 10:05 UTC from what seems to be a nearby and sudden seismic event. The motion appeared quickly in both 0.03-0.1 and 0.1-0.3 Hz frequency bands and Picket Fence did show small motion on all sensors a minute or so after the lockloss. This event does not correspond to any earthquake reported by USGS.

Seismic configuration did not switch to EARTHQUAKE until the second wave hit (around -5m on attached ndscope). Waited in DOWN for about 10 minutes for ground motion to calm down, now relocking (and anticipating an incoming 6.2 from Japan).

TITLE: 06/11 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 135Mpc
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 9mph Gusts, 7mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.08 μm/s
QUICK SUMMARY: Taking over from Austin. H1 has been locked and Observing for over 1.5 hours.

• All systems look good
• Dust monitors working and levels okay

TITLE: 06/10 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 136Mpc
SHIFT SUMMARY:

- Lock #1:

• Lockloss @ 23:35

- Lock #2:

• Reaquisition was entirely automated
• Held at OMC WHITENING to damp violins
• Acquired NLN @ 0:46
• ITMY 5 nominal settings are ringing up the mode, Tony's setting of the FM7 filter addiition with a gain of 0.04 seems to be effective
• Inc 5.2 mag EQ from Japan logged @ 3:18
• Lockloss @ 3:43

- After the EQ, decided to do an IA just to make sure the alignment is still ok

- Lock #3:

• After IA, reaquisition was all hands off
• NLN @ 5:13/OBSERVING @ 5:16

- Leaving the IFO to Ryan S. locked and in observing

LOG:

No log for this shift.

H1 just unlocked potentially due to an 5.2 EQ from Japan (though I'm a bit skeptical that this was 100% the cause for reasons listed here). Doing an IA just to be safe and will begin relocking shortly.

LOCKLOSS @ 3:43, this one might be from the EQ. Interestingly enough, SEI_CONF went to CALM (it went to the EQ state, but there was no indicator on Verbal that it ever transitioned in the first place?), and we lost lock shortly after. Notice right after the lockloss the MC_TRANS camera was moving quite significantly in pitch, more evidence that this was potentially motion related.

However, the peakmon ndscope was showing very little movement (~100 counts at the time of the lockloss - scope attached), also the BLRMS for the EQ band was at or right below 0.1 um/s. This is pretty contradictiory, I'm wondering if this was just a coincidence and not EQ related at all? Tagging SEI

EDIT: The lockloss tool did not tag any ground motion related tags, and the lockloss select tool is not showing any ASC/LSC ringups from my eye, conclusion: inconclusive.

LOCKLOSS @ 23:53, looking at the lockloss select, potentially movement in CSOFT P, also noticing some instability in the LSC loops as well - scope attached - Tagging ISC

Lockloss occured at 19:50 UTC:
Lockloss select URL : https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1370461864
 

Cause currently unknown, awaiting analysis.

CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 4mph Gusts, 2mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.08 μm/s