TCS_ITMX_CO2 caused us to drop out of Observing for ~1 minute due to the laser losing lock.
The whole story is in the title. Per Keita's request.
Was it reported by Terramon, USGS, SEISMON? Yes, Yes, No
Magnitude (according to Terramon, USGS, SEISMON): 5.1, 5.1, NA
Location: 72km WSW of Puerto Madero, Mexico; LAT: 14.4, LON: -93.0
Starting time of event (ie. when BLRMS started to increase on DMT on the wall): 18:54 UTC
Lock status? H1 rode it out with a glitch showing up in the BNS inspiral range plot. LLO lost lock possibly coincident with the EQ.
EQ reported by Terramon BEFORE it actually arrived? Not sure.
No issues thus far. H1 has been locked for 24 hours.
Rolf, Keith, Carlos, Dave:
During the CDS Face2Face meeting at LHO June 6-9, we worked on the LHO DTS:
JoeH from LLO called at 16:34 UTC to ask if we had receieved a GRB alert. We did not. He said that they also only got a single alarm, not the typical repetitive alarm that requires acknoledgement.
TITLE: 06/10 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 61Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
Wind: 6mph Gusts, 4mph 5min avg
Primary useism: 0.01 μm/s
Secondary useism: 0.14 μm/s
QUICK SUMMARY: No issues were handed off and H1 has been locked for 20+ hours. Bubba is leaving the site as of 15:14 UTC and reports that the door lock issue has been resolved.
TITLE: 06/10 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC STATE of H1: Observing at 61Mpc INCOMING OPERATOR: Travis SHIFT SUMMARY: Observing entire shift. No issues. LOG: 13:19 UTC Bubba to LSB
Have remained in observing. No issues to report.
TITLE: 06/10 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 64Mpc
OUTGOING OPERATOR: Ed
CURRENT ENVIRONMENT:
Wind: 10mph Gusts, 7mph 5min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.10 μm/s
QUICK SUMMARY:
INJ_TRANS guardian node is not set (see previous alog). No other known issues.
The INJ_TRANS guardian node has a request of NONE and is in the INIT state. Should the request be changed to INJECT_SUCCESS or INJECT_KILL?
TITLE: 06/10 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 64Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY:
Quiet shift. Range has been looking as good and stable as can be. A couple of small quakes didn't affect us. Handing off locked H1 to Patrick.
LOG:
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:
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.
And again from 22:08-22:11 UTC.