Link to full report

Summary of the report:

• observing for 74.8% of the week
• many summary page plots are not displaying properly for this week, especially the glitchrate plots and hveto
• range was mostly around 150-160 Mpc except for fuziness on Thursday and Friday. A cause was not identified.
• there were a couple of locklosses with unidentified causes. EQs, wind, and microseism may be factors.

Observing at 160Mpc and Locked for almost 2 hours now

TITLE: 11/28 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Earthquake
OUTGOING OPERATOR: Austin
CURRENT ENVIRONMENT:
    SEI_ENV state: EARTHQUAKE
    Wind: 1mph Gusts, 0mph 5min avg
    Primary useism: 0.32 μm/s
    Secondary useism: 0.21 μm/s
QUICK SUMMARY:

Detector went down due to an earthquake(74432) and we are currently having another earthquake pass through so we will be holding in DOWN for a bit longer.

TITLE: 11/27 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Aligning
INCOMING OPERATOR: Oli
SHIFT SUMMARY:

- Superevent S231127cg

- Went in to commissioning from 17:43 to do some guardian squeezer work, back to observing @ 17:48

- EX saturation @ 17:59

- 19:45 - GRB-Short E456064

- 21:20 - GRB-Short E456081

- 21:53 - inc 6.6 EQ from Papua New Guinea

• Lockloss @ 22:13 - caused by EQ

- H1 is currently running an initial alignment following the EQ from earlier

LOG:                                                                                                                                                                                                                          

While the IFO was down this afternoon waiting for a large earthquake to pass, I took the opportunity to touch up the FSS RefCav alignment as it had drifted over the past few days (likely assosciated with the drop in temperatures over the weekend). With the ISS still ON and the IMC offline, I used the two picomotor-controlled mirrors in the FSS path to increase the signal on the TPD from 0.87V to 0.96V. The adjustment needed was mostly in pitch, as usual.

Lockloss @ 22:13, caused by a 6.6 EQ from Papua New Guinea.

Mon Nov 27 10:04:41 2023 INFO: Fill completed in 4min 38secs

Jordan confirmed a good fill curbside.

The fill only barely completed, TC-A flat lined at -90.0C and for just one sample went to -90.1C which triggered the end-of-fill. I've increased the trip temp to -80C. The site is experiencing freezing fog, temp=-3C. I suspect TC icing may be an issue.

Sheila, Camilla, Jenne, Austin

We droped out of observe for a few minutes to start running the sqz angle adjustment guardian state using the ADF that Naoki wrote on Wed (74376).  This changed the sqz angle by a few degrees in the first 2 minutes it was on, which improved the sqz blrms slightly.  

Because Vicky put some code in ISC_LOCK that set the SQZ_MANAGER request to it's nominal state, the only change we had to make was to change the nominal state of SQZ_MANAGER, and this should now be used in future locks. The new SQZ_MANAGER state is ADJUST_SQZ_ANG_ADF state number 110

FAMIS 20004

Our incursion into the enclosure last week can be clearly seen on several trends. Since then, the RefCav alignment seems to have drifted (verified by the RefCav reflected camera image) and the TPD now has a lower value of 0.86V.

No other major events of note.

TITLE: 11/27 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 144Mpc
OUTGOING OPERATOR: Tony
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 3mph Gusts, 2mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.24 μm/s 
QUICK SUMMARY:

- IFO locked for just under 21 hours

- Microseism looks to finally be calm

- CDS ok

- DM PSL 102 needs to be restarted

TITLE: 11/27 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 154Mpc
INCOMING OPERATOR: Tony
SHIFT SUMMARY: We are Observing and have now been Locked for 13 hours. Quiet evening with a now lowered microseism and low wind. Note that SEI_CONF is in USEISM and SEI_ENV is in CALM. The PSL 102 dustmon is still stuck with its incorrect readings - still not sure what caused that (see both comments on 74402 for more info).
LOG:

00:00UTC Detector Observing and Locked for 5 hours
    - SEI_CONF in USEISM and SEI_ENV in CALM

Observing at 155Mpc and have been Locked for 9.5 hours.

TITLE: 11/26 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 153Mpc
INCOMING OPERATOR: Tony
SHIFT SUMMARY: Quiet evening, Observing and we have now been Locked for over 12hours. Wind has gone up a bit but is still pretty low. Microseism is slowly decreasing, and violins are doing well. SEI_CONF is still in USEISM, and SEI_ENV is still set to CALM
LOG:

00:00UTC Detector Observing and Locked for over 4 hours
    - SEI_CONF in USEISM and SEI_ENV in CALM

TITLE: 11/25 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
OUTGOING OPERATOR: Austin
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 11mph Gusts, 9mph 5min avg
    Primary useism: 0.07 μm/s
    Secondary useism: 0.36 μm/s
QUICK SUMMARY:

Observing and Locked for over 10hours now, everything looking good. Will keep a close eye on violin modes.

TITLE: 11/23 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: Ryan S
SHIFT SUMMARY:

The last hour has shown a drops in range while being in OBSERVING.  In the last 30min the range drops have been less severe, but this is an odd one.

Had a few bumps out of observing due to the squeezer, but it would only be for about ~2min as the squeezer relocked itself.  L1 came back to Observing this shift.
LOG:

• Drops from OBSERVING due to the Squeezer unlocking this shift:
  • 2356 - 2359 utc (end of Ryan C.'s shift)
  • 0004 - 0006 
  • 0624 - 0626
• 0244 Short GRB alert
• 0712 Short GRB alert
• 0700 H1 range begins taking a hit with drops and variations.  Have not received any alarms for this & have been in OBSERVING the whole time. Environmentally we look good at first glance.