Sat Nov 30 10:10:58 2024 INFO: Fill completed in 10min 55secs
TC mins only just exceeded -75C, I have increased the trip to -70C for tomorrow's fill.
TITLE: 11/30 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Earthquake
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
SEI_ENV state: EARTHQUAKE
Wind: 6mph Gusts, 4mph 3min avg
Primary useism: 0.10 μm/s
Secondary useism: 0.25 μm/s
QUICK SUMMARY:
H1 lost lock recently most likely due to a M5.4 earthquake off the western coast of Mexico.
Overnight H1 had a lockloss at 1245 with no IMC/FSS oscillation tags.
It is Saturday, so a Calibration is scheduled late morning, but thermalization requirements may push this out to the afternoon since H1, L1 are currently both DOWN and V1 has been Observing 15min.
TITLE: 11/30 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 160Mpc
INCOMING OPERATOR: Ibrahim
SHIFT SUMMARY: 2ndary microseism is increasing, 2 locklosses this shift. We've been locked and observing for 35 minutes.
LOG: No log
Lockloss at 04:36 UTC
05:27 UTC Observing
Closes FAMIS 26344. Last checked in alog 81421.
For the CS MR_FAN3_170_1 looks to have gotten noisier 2 days ago.
For the OUT buildings EX_FAN1_570_2 got noticeably noisier two days ago and looks to be trending upwards.
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:
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 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.
00:37 UTC lost it at TRANSITION_FROM_ETMX
01:25 UTC Observing
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.
DARM seems to move first, then within 1 ms ETMX L3 moves and DARM moves even more then ETMX L2 moves a lot more. ~150ms later the pattern happens again but the L2 response is larger and we lose lock ~100 ms later. I'm not sure this is actually a ETMX glitch.
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
06:05 UTC Observing
04:00 UTC Observing
