TITLE: 12/09 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 163Mpc
OUTGOING OPERATOR: Austin
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 3mph Gusts, 2mph 5min avg
    Primary useism: 0.05 μm/s
    Secondary useism: 0.50 μm/s
QUICK SUMMARY:

• Range above 160!
• We rode through 5 EQs overnight
• All systems look good
• Elevated microseism

TITLE: 12/09 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 157Mpc
INCOMING OPERATOR: Austin
SHIFT SUMMARY: Quiet night with one lockloss (74693) but we relocked quickly and have been Locked for 5.5hours. ITMY modes 5/6 are very slowly going down with the ITMY5 gain set to -0.01, but I will turn this gain off just in case it makes modes 5/6 worse, as it seemed to be doing earlier in the evening before the last lockloss. Here are what they look like right now - the DCPD values have also slowly been drifting further apart as the lock has progressed.

There are also some SPM differences on ITMY (attachment2).
LOG:

00:00UTC Detector Locked for 2.5hours and in Commissioning

01:27 Lockloss (74693) possibly due to Robert
01:28 Guardian TEST Node in Error
02:43 NOMINAL_LOW_NOISE
02:47 Observing

Closes FAMIS#26268, last checked 74570

Corner Station Fans (attachment1)
All fans are within range.
MR_FAN3 has had some strange small jumps in acceleration a couple of times per day for the past 2.5 days, but acceleration values are still well within a normal range. (Possibly due to air conditioning being turned off and on?)

Outbuilding Fans (attachment2)
All fans are looking normal and within range.

We've been Locked for 2.5 hours now following the last lockloss (74693) and are Observing at 155Mpc. Relocking went smoothly, and everything is going well here besides the stubborn ITMY5/6 violins. Luckily they are reducing, just very slowly.

I used most of todays commissioning time for shaking and laser vibrometry to inform plans for the break. I replaced the MC3 camera over the viewport I had been using but couldnt get it to work. We will have to revisit it on a Tuesday.

Lockloss 12/08 01:27UTC Robert was in the LVEA at the time trying to get the MC3 camera back online so he's our current suspect.

Camilla, Naoki

To find the optimal ADF demod phase for ADF servo, we scanned the ADF demod phase with ADF servo running, without SQZ ASC. The command to scan we used is as follows. We scanned the ADF demod phase from 72 to 92 deg. +2 deg and 120s delay time for each step, 10 steps in total.

ezcastep H1:SQZ-ADF_OMC_TRANS_PHASE -s '120' '+2,10'

The attached figure shows that the nominal ADF demod phase of 80 deg is already optimal value. So we left the ADF demod phase as it is.

TITLE: 12/09 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Commissioning
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 4mph Gusts, 2mph 5min avg
    Primary useism: 0.05 μm/s
    Secondary useism: 0.65 μm/s
QUICK SUMMARY:

Detector Locked for 2hrs45mins, and we are in Commissioning for the next ~15minutes.

Sheila, Elenna, Camilla. Last done in August 72140. Doing now as BRUCO shows ASC coherences 74664 and want to understand current ASC coupling beofre OM2 commissioning.

Saved in /ligo/gitcommon/NoiseBudget/aligoNB/aligoNB/H1/couplings/

The new CHARD_Y quiet time reference of H1:ASC-CHARD_Y_SM was very different to the old quiet time reference: compare new (red) to 10th August (blue) of bottom left plot attached.

TITLE: 12/08 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: Oli
SHIFT SUMMARY:

16:47UTC Robert went into the CER to turn on an AC and he turned it back on at 17:03UTC and off again at 17:18UTV

I updated ITMY mode8s setting in lscparams after confirming the settings work in a few locks, FM1+FM5+FM10 G= +0.1. ISC_LOCK and VIOLIN_DAMPING. I'm still leaving ITMYs 5/6s gain set to zero as I'm not totally confident in the settings yet, it seems to be damping mode6 but slowly ringing up mode5.

19:08UTC Lockloss

Each of the arms went through increase flashes twice and I had to intervene to find DIFF IR and again during PRMI locking, there were no flashes so I tapped PRM in yaw based on the AS AIR camera. Lockloss at OFFLOAD_DRMI_ASC

I changed the SEI_CONF to microseism before the next lock acquisition attempt

20:03 UTC DIFF IR was not able to lock, complaining of "Bad Xarm alignmen" and I looked at the Xarm error signals and they were indeed quite bad so I took us down to start an IA

20:25 UTC during MICH_BRIGHT there were BS saturations which is unusual and it was not able to make it through the state, it was due to a poor BS alignment. I adjusted the BS in pitch by almost a microradian and the camera looked much better and IA was able to continue

21:26 back to NLN and we started commissioning at 21:30UTC, after relocking DARM was still dominated by the ~508Hz oscillation from ITMY modes5/6 as seen in the LL.

I wasn't really able to damp ITMY mode5/6, all the settings I tried would only damp 1 while ringing up the other, I tried +/- gain with 30 degrees of phase

LOG:                                                                                                                                                                                                                                                                                                                                                             

Naoki, Sheila, Camilla

We changed the sqzparms use_ifo_as42_asc flag to False for this lock to watch SQZ without IFO ASC now we have the sqz angle feedback 74485. FC ASC left on. Not accepting the sdf's as we plan turn ASC back on at the end of commissioning.

Closes FAMIS 26221

Laser Status:
    NPRO output power is 1.819W (nominal ~2W)
    AMP1 output power is 67.9W (nominal ~70W)
    AMP2 output power is 136.7W (nominal 135-140W)
    NPRO watchdog is GREEN
    AMP1 watchdog is GREEN
    AMP2 watchdog is GREEN

PMC:
    It has been locked 2 days, 0 hr 31 minutes
    Reflected power = 16.23W
    Transmitted power = 109.8W
    PowerSum = 126.0W

FSS:
    It has been locked for 0 days 0 hr and 45 min
    TPD[V] = 0.9395V

ISS:
    The diffracted power is around 2.4%
    Last saturation event was 0 days 0 hours and 46 minutes ago

Possible Issues: None

EX sat then lockloss

Dana, Sheila

I plotted how the DCPD matrix has changed over the last eight years in the attached figure (DCPD_sums_and_nulls_8years). I've also included zoomed in snapshots of all the major changes within this time span with the dates and times shown (changes 1-7 attached below). For each one of these jumps in the matrix values, I checked the alogs for that day and attached any potentially relevant ones explaining what was going on at the time below:

change 1 (1) (2)

changes 2 & 3 (1) (2)

change 4 (1)

change 5 (1) (2)

change 6 (1)

change 7 (1) (2) (3) (4) (5)