FAMIS 4731 ETMX and ITMX are out of range in pitch. SR3 is borderline in pitch. ETMX and ITMX are borderline in yaw.
This may be a premature post. The BLRMS haven't shown any significant rise as of yet.
6:05 BLRMS start to rise.
Well, this was a freebie. It only amounted to ~.1um/s. Your welcome.
Here is a bruco report from June 8th, https://ldas-jobs.ligo-wa.caltech.edu/~sheila.dwyer/bruco_June8/
The bullseye yaw coherence with DARM is above 0.1 from 30 Hz to 1kHz.
In our first couple of locks after coming back from the vent, our jitter situation was better, as can be seen in the attachment.
I'm making this report on behalf of Corey at his request:
Approx 21:47UTC (3hr15min ago), EQ BLRMS started showing a rise due to 4.9mag activity in the Colombia area. The max mag reported before the ringdown was approx .45um/s. It appears to have taken a little over 2 hours to ring down back to previous levels of "nomal". I can't comment on the observed lag times between our BLRMS and the web reports but there is a 30 min difference from what I can see.
b>TITLE: 06/09 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Calibration
OUTGOING OPERATOR: Coreyt
CURRENT ENVIRONMENT:
Wind: 11mph Gusts, 8mph 5min avg
Primary useism: 0.07 μm/s
Secondary useism: 0.11 μm/s
QUICK SUMMARY:
TITLE: 06/09 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 66Mpc
INCOMING OPERATOR: None
SHIFT SUMMARY:
Had issues locking after a lockloss in the morning. Then discovered issues with ALS during INITIAL ALIGNMENT (see Jenne's alog).
LOG:
Topped off the crystal chiller with 225mL. Diode chiller was OK (no water fill). Filters looked good (white & no particles/obstructions). This closes out FAMIS 6526.
After the alignment issues (see Jenne's entry earlier this morning), we now have H1 back to NLN. (We did have an odd lockloss around the DHARD/CARM reduction steps, but on 2nd attempt we went step by step and made it through with no issue.)
Currently staying out of OBSERVING to allow Robert to perform some accepted PEM injections starting within the next hour.
NOTE: Please remember to turn OFF WIFI in LVEA.
Edit: Observatory Mode transitioned to CALIBRATION (for this injection work).
Do not really want to try an INITIAL ALIGNMENT, but have struggled a little for the last ~40min getting H1 to progress much beyond DRMI.
It's made it as far as DHARD WFS once, but all other times have been in and around DRMI, and when it drops out, it does so somewhat violently (AS camera spot swings wildly and the AS90_OVER_POP90 channel [gray on StripTool in front] has been huge.
Just tried going step by step after DRMI & dropped out (wildly again) in the CARM_ON_TR step.
Will try one more time and then will try an INITIAL ALIGNMENT.
Corey was also struggling with initial alignment. It turns out this is the first time we've run an initial alignment since Wed evening, when I reset the green PZT pointing and green ITM camera setpoints.
These seemed to be working okay for the Xarm, but not at all for the Yarm - the AS camera looked terrible, and moving the optics such that the camera error signal was small brought the green transmitted power down. So, Vaishali and I undid those changes and put the initial alignment setpoints back to what they were before Wed. We're doing this for both arms, since it doesn't make sense to have different alignments for the different arms. Since we had to do it for the Yarm, we're also doing it for the Xarm.
Things are looking better now, so Corey is continuing with initial alignment.
EDIT: It occurs to me (just after it's too late for this lock, since we started increasing power) that I should have reset the green initial alignment setpoints at 2W, like DC readout. Instead, I had done it while at full power on Wed night after the IFO was warm and toasty. That's probably why the setpoints were not good for initial alignment this morning. Ooopsies, sorry. The current setpoints are close enough that the IFO is fine coming up without any help, so we'll leave it alone for now, and reset the initial alignment setpoints at 2W next time it's convenient.
TITLE: 06/09 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 64Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
Wind: 16mph Gusts, 12mph 5min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.09 μm/s
QUICK SUMMARY:
Nice and quiet shift. H1 current lock just passed 16.5hrs......
15:30: Ugh, as I was writing this alog & opening up medm windows, H1 dropped out of lock (happened as I clicked "ALL" for DIAG_MAIN message window--realize it's coincidence, but just saying. Actually there was a wind storm starting up on the Y-arm a few minutes before).
Working on bringing H1 back (NOTES: (1)ALS Arm powers were down near 0.90, tweaked TMS a few 0.001counts. (2)Had to lock IR manually.)
TITLE: 06/09 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC STATE of H1: Observing at 65Mpc INCOMING OPERATOR: Corey SHIFT SUMMARY: Observing entire shift. No issues. Not even a PI mode. LOG: 10:38 UTC Closed terminals on nuc0 that were obscuring the glitch spectrogram in the web screenshots. 14:17 UTC Jeff B. called to inform me that he is in the carpenter's shop. 14:48 UTC Jeff B. called to inform me that he is finished in the carpenter's shop.
Have remained in observing. No issues to report.
TITLE: 06/09 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 65Mpc
OUTGOING OPERATOR: Ed
CURRENT ENVIRONMENT:
Wind: 3mph Gusts, 1mph 5min avg
Primary useism: 0.01 μm/s
Secondary useism: 0.12 μm/s
QUICK SUMMARY:
No known issues.
TITLE: 06/09 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 65Mpc
INCOMING OPERATOR:Patrick
SHIFT SUMMARY:
Quiet shift. There were a couple of small quakes that were of no consequence to H1. A2L was run towards the end of the shift as Livingston dropped their lock. Handing of locked/Observing H1 to Patrick. There was 1 RO alarm.
LOG:
23:10 Chandra to MY
23:23 Kyle called to inform me that he had driven past the barricade to the bunker with the pickup truck for gas cylinders.
23:25 Little Quake from around the Mariana Islands ~.05um
23:53 Chandra back
00:17 Wind is picking up in excess of 30mph over the last hour.
Attached are the before and after screen caps.
H1 back to Undisturbed @ 6:17UTC
Jenne and I reviewed the ISS status this morning. Jenne noticed that the RIN of the 2nd loop out-of-loop PD array shows increased coherence between 7~30Hz. I continued to investigate the comparison of the ISS state between now (6/8 19:00 UTC) and May 1st (5/1 1:00 UTC).
The 2nd loop out-of-loop floor level shows the stability of 1e-8 [1/rtHz] for both cases. However, the stability below 30Hz is worse than the one on May 1st. (Attachment 1. The blue curves are the current, and the red curves are the ones on May 1st.)
Attachment 2 shows the ISS QPD pointing. The yaw shows the shift from 0 to +0.3 while the pitch stayed ~-0.7. (Is that Okay?)
The 2nd loop PDs (inner/outer) exhibited 5~7% decrease, while the input power was also decreased 5%. So there looks some real decrease of the incident power on the PD exist. (Note tthat the QPD sum decreased -6.5%).
Can we change the features in the power spectrum by realigning the ISS PDs?
Rick sent me a couple of reference alogs regarding the ISS QPD centering:
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=30915
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=29583
It seems that the last ISS QPD centering was done on Oct 27, 2016. (Attachment 1)
I've checked the ISS QPD pointing since this last centering (Attachment 2). The pointing gradually drifted out from the center in the pitch diection during the first two months. There was no yaw drift. After the vent, there was no big change in pitch, but was in yaw.
I took the in-loop/out-of-loop spectra of the invac ISS array outputs right after the last centering (Attachment 3). The spectra were basically the same as the ones seen before the vent, and thus were better than the current level.
Because there was no intentional offset on the QPD pointing, we should try to center the beam on the ISS QPD (in the next possible occasion) to see if this helps to reduce the residual intensity noise at the low freq band.
Based on what I know about this spectra, I don't see any outliers worth mentioning. Everything looks nominally ok.
TITLE: 06/08 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
Wind: 14mph Gusts, 9mph 5min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.13 μm/s
QUICK SUMMARY:
We currently do not have the GWI.stat or our DMT view showing the H1/L1 BNS ranges (Cheryl has emailed local CDS staff); we can see that we've been at NOMINAL LOW NOISE for just under 6hrs. Don't have a range to report, but the DARM spectrum on the front wall looks close to the reference.
At some point this morning we would like to do Sweeps of the LVEA & End Stations
I was not the outgoing operator.
The faulty regulator which turned out to be only a bad o-ring in the regulator itself, has been repaired, reinstalled, and air is flowing again. I unlocked the valves with Chandra watching the vacuum screen in the control room. While I was repairing the regulator, Kyle was ordering a couple of new regulators for spares. Chandra and I also replaced the check valves on the corner station instrument air compressor.
The regulator failed again the next day, so we replaced it with an odd ball spare. Awaiting order delivery of direct replacements.