TITLE: 11/29 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 160Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:

About 100min of downtime for the 9hr shift (with a lockloss early in the shift and one near the end of the shift).  For speed, I nudged H1 to CHECK MICH FRINGES to help with DRMI (the 2nd lockloss' ALS locking was all automatic).

Chilly Black Friday with temperatures barely going over 35°F.  µseism looks like it might have slightly inched above the 50th percentile over the last 24hrts.
LOG:

• 1713 LOCKLOSS (with ETM_GLITCH tag for etmX); this lock was about 8.75hrs.
  • 1713-1820 Locking where ALSx & PRMI/DRMI needed to be touched up.
• 2349 LOCKLOSS (with an IMC tag for the lockloss, but RyanC assured that it didn't look like it was of the glitchy variety); lock was 5.5hrs.
  • Handing over this reacquisition to RYAN C to take H1 back to OBSERVING.

TITLE: 11/30 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 3mph Gusts, 1mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.22 μm/s
QUICK SUMMARY:

• 23:49 UTC lockloss, we're relocking at PREP_DC
• Wind is low, microseism is calm
• I ran the low range check for the lock we just lost

23:49 UTC lockloss IMC tag, ASC and IMC lost it within 5ms of eachother. It looks like the ISS might have lost it first then 30ms later the FSS and ASC lost it.

Fri Nov 29 10:05:18 2024 INFO: Fill completed in 5min 15secs

TC mins -79C,-78C. New trip -75C.

H1 had a lockloss in fairly quiet conditions.  Lockloss had an "ETM_GLITCH" tag (ETMx, "zoom-in" attached); last time we had one of these was about 3-days ago.
IMC took a few min to acquire after lockloss.  ALSx locked, but was driven off by ASC to a pitch misalignment (tried touching up flashes via TMSx, but INCREASE FLASHES immediately took over).  DRMI looked ugly, so preemptively went to PRMI (which also looked bad) and then CHECK MICH FRINGES.

Laser Status:
    NPRO output power is 1.832W
    AMP1 output power is 70.03W
    AMP2 output power is 137.4W
    NPRO watchdog is GREEN
    AMP1 watchdog is GREEN
    AMP2 watchdog is GREEN
    PDWD watchdog is GREEN

PMC:
    It has been locked 2 days, 13 hr 47 minutes
    Reflected power = 24.38W
    Transmitted power = 104.7W
    PowerSum = 129.1W

FSS:
    It has been locked for 0 days 9 hr and 24 min
    TPD[V] = 0.835V

ISS:
    The diffracted power is around 3.2%
    Last saturation event was 0 days 9 hours and 31 minutes ago
Possible Issues:
    PMC reflected power is high

TITLE: 11/29 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 157Mpc
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 3mph Gusts, 1mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.19 μm/s
QUICK SUMMARY:

On this Black Friday, H1's been locked almost 7.5hrs w/ a range just under 160Mpc.  Decently quiet environmentally with microseism hovering just over the 50th percentile the last 24+hrs; winds are low.

On CDS Overview, CDS SDF was a yellow box for an SDF Diff for H1:CDS-LLA_CONTACT_25_ENABLE in the NO state---THIS WAS ACCEPTED (see attached).

TITLE: 11/29 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 152Mpc
INCOMING OPERATOR: TJ
SHIFT SUMMARY: We had two locklosses this shift, neither from the IMC. Both had automated relocks.
LOG: No log

• 17:03 UTC Observing
• 02:19 UTC Superevent S241129aa
• 03:04 UTC lockloss
  • 04:00 UTC Observing
• 05:06 UTC lockloss
  • 06:05 UTC Observing

05:06 UTC lockloss

03:01 UTC lockloss

TITLE: 11/29 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 158Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Been a very quiet shift. H1 was running an alignment when I arrived this morning after having lost lock, and once that finished, H1 relocked automatically and without issue where it's been since. H1 has now been observing for 7.5 hours.

• 14:58 - Lockloss
• 15:23 - H1 starting initial alignment
• 16:21 - IA finished. starting lock acquisition
• 17:03 - Observing; fully automatic relock

TITLE: 11/28 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 158Mpc
OUTGOING OPERATOR: Ryan S
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 3mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.16 μm/s 
QUICK SUMMARY:

• We've been locked for 7 hours
• Winds low, microseism is steady
• Low range coherence check for this lock yielded

Thu Nov 28 10:04:04 2024 INFO: Fill completed in 4min 1secs

Only TC-A reached the trip temp of -80C. I have increased the trip temps to -75C for tomorrow's fill.

VACSTAT went into SINGLE (increase sensitivity) mode at 09:25 due to one of our regular BSC3 sensor glitches. I restarted the service at 09:30 to reset back to MONITORING mode.

TITLE: 11/28 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Aligning
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 3mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.15 μm/s
QUICK SUMMARY: H1 lost lock at 14:58 (link to lockloss tool) from a not obvious cause after a 21+ hour lock stretch. Currently running an initial alignment.

• Freezing fog and drizzle on-site with temps right around 0ºC
• Wind and secondary microseism are low
• All other systems nominal