TITLE: 11/17 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
OUTGOING OPERATOR: Austin
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 4mph Gusts, 2mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.17 μm/s
QUICK SUMMARY:

Detector in Observing and Locked for 4.5 hours. Looks like this last lockloss was from an earthquake.

TITLE: 11/17 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: We've been locked for almost 7 hours.

For the relock we couldn't get DRMI or PRMI so we went through CHECK_MICH, then PRMI twice but after the 2nd PRMI DRMI was able to lock easily. ISCT6 AS AIR camera flashed blue at 00:24 UTC while we were in CHECK_SHUTTERS (tagging CDS). Once we went through CLOSE_BEAM_DIVERTERS the SQZ_FC node went into error, which Naoki then checked out and fixed.

01:09UTC In observing

02:39UTC EQ mode activated 5.7 from Myanmar, back to calm at 02:49UTC

03:03UTC GRB-Short E453298

First snow of the season? Small flurry on site around 04:00UTC and 07:00UTC onwards.

LOG:                                                                                                       

• STATE of H1: Observing at 159Mpc
• We've been locked for 2:55, in Observing since 01:09 UTC
• We rode through a 5.7 from Myanmar

TITLE: 11/16 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 153Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Quiet day for the most part, aside from two locklosses.

• 18:34 Lockloss - alog
• 19:33 Reached NLN
• 19:39 Started observing
• 23:45 Lockloss - alog

H1 is relocking, currently in FIND_IR.

LOG:

Lockloss @ 23:45 UTC - no immediately obvious cause, but this looks like another one where LSC-DARM_IN1 saw the first activity.

TITLE: 11/16 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Ryan Short
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 8mph Gusts, 6mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.23 μm/s
QUICK SUMMARY:

• Relocking from a recent LL
• All systems look good

I noticed earlier this week that two vacuum guage pressures had been temporarily removed from the alarm system in Sep 2022 during a BSC2/HAM6 vent. I have added them back into the alarm configuration and restarted the service.

+<!-- WP10675 remove for vent
 <Channel name="H0:VAC-LY_Y1_PT120B_PRESS_TORR" low="1.0e-10" high="2.0e-06" description="VE gauge, PT120B BSC2 CC">
 

+<!-- WP10675 07Sep2022. Temporarily remove HAM6 Alarms for the duration of the vent.
 <Channel name="H0:VAC-LX_Y0_PT110_MOD1_PRESS_TORR" low="1.0e-10" high="5.0e-06" description="HAM6 VAC">
 

I have added trend buttons to the FMCS Overview MEDM which open MEDM screens showing the most recent 1day, 1week, 1month trend plots.

Attachment shows the Overview and the VEA temperature trends, showing the recent MY drop in temperature.

A follow up to an operator report that the MC3 camera image on the FOM occassionally flashes blue-screen. I can confirm I have seen several flashes today on my gstreamer display running on my nomachine session. Normally we would immediately restart the server process, except h1digivideo1 was actually rebooted late Tuesday morning which appears to have caused the issue.

At the next TOO I will restart the server process as a simple first test. We may then progress to power cycling the camera.

The low temperature in Mid Y this morning was the result of a malfunctioning heater. Both SCRs had burned up so there was no heating control available. I bypassed both SCRs and wired straight from the line voltage fuses. The heat staging required rewiring as it had been wired to bring on all stages of heating with only a single stage heating command. 

1384194867

21 hr 17 min lock. PRG was seen on the nuc30 FOM oscillating and incresing before lock loss. Looking at the standard plots, it looks like an ASC ringup, though I can't tell who was first.

Thu Nov 16 10:03:35 2023 INFO: Fill completed in 3min 32secs

Gerardo confirmed this short fill was a good one from curbside.

TITLE: 11/16 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 7mph Gusts, 5mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.26 μm/s
QUICK SUMMARY: Locked for 18.75 hours. MY has a temperature alarm, looks to be acknowledged but I'll contact FAC.

TITLE: 11/16 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 156Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY: We've been locked for 10:43, the range has dropped by ~5 Mpc over the past 2 hours or so, the wind has also increased over the same time frame but not by too much 5 -->10mph, and the live SQZ DARM trace is below the FDS reference on NUC33. Another quiet night.
 

• STATE of H1: Observing at 160Mpc

• We've been locked for 6:47, in Observing since 00:33

Naoki, Sheila

In the AS72 sensing matrix measurement in alog74106, Daniel suggested to increase the whitening gain of AS72 since it could be limited by ADC noise. We checked the whitening filter of AS72 A and B. Both of them have 12dB whitening gain, but one stage whitening is engaged for AS72 A, while two stage whitening is engaged for AS72 B. We decided to engage the 2 stage whitening for AS72 A, which is used in SRC1. The IFO locks without any problem with this additional whitening. We accepted some SDFs as shown in the attached figures. We will try to increase the whitening gain later.