david.barker@LIGO.ORG - posted 11:29, Sunday 10 December 2023 (74722)
Sun CP1 Fill
Sun Dec 10 10:04:21 2023 INFO: Fill completed in 4min 18secs
Images attached to this report
Sun Dec 10 10:04:21 2023 INFO: Fill completed in 4min 18secs
TITLE: 12/10 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 159Mpc
OUTGOING OPERATOR: Austin
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 3mph Gusts, 2mph 5min avg
Primary useism: 0.04 μm/s
Secondary useism: 0.45 μm/s
QUICK SUMMARY:
TITLE: 12/10 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 158Mpc
INCOMING OPERATOR: Austin
SHIFT SUMMARY: Currently Observing and have been Locked for 1.5hours. One lockloss during shift while I was running a Simulines measurement, so not sure if that could have/did cause it?
I have just left the ITMY Mode5 gain as 0 since it seemed like whenever I tried to change it, it would cause mode 5 to jump up and would take hours to get back to where it was before I turned on the gain. Mode 5 slope after changing gain from 0 -> -0.01 seemed to stay the same as well, and it seems like it takes a few hours after relocking for mode5 to start coming down.
LOG:
-- Relocking --
00:00UTC Detector relocking at ACQUIRE_DRMI_1F
- I manually took us state-by-state between LOWNOISE_ASC and TURN_ON_CALIBRATION_LINES due to TRANSITION_FROM_ETMX causing multiple locklosses for Ryan C earlier in the day (74704, 74703).
00:42 Reached NOMINAL_LOW_NOISE
-- Relocking End --
00:46 Observing
03:50 GRB-Short E457962 - Marked as NOT_GRB
04:22 I took us out of Observing and to NLN_CAL_MEAS for Calibration Measurements
04:22 Started Calibration measurements
04:45 Lockloss during calibration measurements (74716)
-- Relocking --
04:58 Low temperature alarm at MX (Went to/below 60F)
05:07 Lockloss from PRMI_ASC
- Had been struggling in DRMI and PRMI for a bit beforehand
05:11 I started an Initial Alignment
05:45 Initial Alignment complete, starting relocking
- Manually took us state-by-state between LOWNOISE_ASC and TURN_ON_CALIBRATION_LINES again
06:28 Reached NOMINAL_LOW_NOISE
-- Relocking End --
06:33 Observing
**Running measurements Saturday evening due to not being unable at our earlier scheduled time due to multiple earthquake locklosses.
*** Lockloss occured while running Simulines
Calibration Monitor screenshot
Broadband Measurements (20231210T042257Z)
2023/12/10 04:22:57 (1386217395) Broadband measurement started
2023/12/10 04:28:13 (1386217711) Broadband measurement finished
Output file: /ligo/groups/cal/H1/measurements/PCALY2DARM_BB/PCALY2DARM_BB_20231210T042257Z.xml
Simulines Measurements
2023/12/10 04:29:33 (1386217791) Simulines started
2023/12/10 04:45:56 (1386218774) Lockloss and inpromptu Simulines finish so no output files :(
Lockloss 12/10 @ 04:45UTC while running Simulines calibration measurement
06:33UTC Observing
Locked for 3.5hours and Observing at 156Mpc. Relocking at the start of my shift went fine, and the ITMY5/6 violins are starting to all slowly decrease. Since Ryan didn't get to run a calibration measurement earlier today and LLO is down, I will now be starting the measurements since we've been up for 3.5 hours.
TITLE: 12/10 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 C
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 6mph Gusts, 3mph 5min avg
Primary useism: 0.05 μm/s
Secondary useism: 0.69 μm/s
QUICK SUMMARY:
Detector is currently relocking and at ACQUIRE_DRMI_1F. Hopefully the Iceland earthquakes are done for today!
00:46UTC Back Observing
TITLE: 12/09 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Oli
SHIFT SUMMARY: Some small locks today, lots of seismic activity particularly from Iceland. LLO down due to microseism, currently relocking at DRMI.
After geting no flashes on PRMI even after going through check_mich I adjusted PRM based on AS AIR and was able to get flashes and it locked shortly after, after PRMI_ASC DRMIs flashes were much better. Lockloss at TRANSITION_FROM_ETMX, Lockloss at AQUIRE_PRMI likly from an EQ from Iceland.
18:22 2nd lockloss from TRANSITION_FROM_ETMX
DRMI has been looking a little shakey the past few attempts, and both the ARMs have been locking at lower powers then typical (.75 and .92)
19:01 Lockloss at LOWNOISE_ASC
19:04 EQ mode activated, back to calm at 19:14 UTC
19:10 Lockloss at FIND_IR, maybe from the EQ?
On the next attempt I slowly stepped through the steps starting at MAX_POWER and was able to survive past TRANS_ETMX and reaquire NLN and went back into Observing at 20:02UTC
21:22UTC lockloss, possibly from an EQ
22:27 Observing
23:44UTC lockloss, possibly from an EQ
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1386200680 Possibly from an EQ (again) as ground motion was spiking at the time.
00:46UTC Back Observing
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1386192166 ~500Hz oscillation in DARM before the LL and there was increased ground motion from an EQ from Iceland.
We just recovered from the mornings LL, we lost lock twice at TRANSITION_FROM_ETMX, from PRCL and SRCL ringups?
On my last and successful lock attempt I slowly stepped through the steps starting at MAX_POWER and was able to get back to NLN at 19:55 and will resume observing when I'm able to.
Back into observing at 20:02UTC
Sat Dec 09 10:05:49 2023 INFO: Fill completed in 5min 45secs
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1386173865
Lockloss at TRANSITION_FROM_ETMX, PRCL and SRCL ringup?
Another lockloss during AQUIRE_PRMI likly from an EQ from Iceland thats rolling through
2nd lockloss at TRANSITION_FROM_ETMX, DCPD saturation then, weird wiggle in the LSC signal.
Both of the TRANS_ETMX lockloss were right after the following code bit:
Ramping down ETMX ESD bias...
H1:SUS-ETMX_L{2,3}_LOCK_ L_GAIN & BIAS_GAIN -> 0
timer('ETMswap') = 61
