aLIGO LHO Logbook

H1 SEI

travis.sadecki@LIGO.ORG - posted 09:35, Monday 17 June 2019 - last comment - 11:19, Monday 17 June 2019(49975)

H1 ISI CPS Noise Spectra Check - Weekly

BS ST2 has a pair of peaks between 1-2 Hz. Note that we are currently in the EARTHQUAKE SEI configuration with an EQ ringing down, so not sure if this effects these spectra.

Images attached to this report

Comments related to this report

hugh.radkins@LIGO.ORG - 11:19, Monday 17 June 2019 (49998)

Link

This spectra is taken some number of hours before the 'run' time, eight or something hours I'd guess. This puts this auto spectra right in the middle of a nearly four hour out of full IFO period where in the SEI BS will be in ISOLATED_DAMPED mode for potentially much of the time.

H1 TCS (TCS)

Link

corey.gray@LIGO.ORG - posted 09:31, Monday 17 June 2019 (49974)

TCS Chillers FAMIS Task (#11496)

Addressed TCS Chillers (08:49 -08:57 PDT)

TCSx Chiller: Had level of 29.4 cm. Added 250mL for 30.0cm.
TCSy Chiller: Had level of 9.1 cm. Added 100mL for 10.0 cm. NOTE: I for the level of 9.1cm, was expecting to add 450-500mL based on history in the log (so was surprised at only needing 100mL.

H1 General

Link

travis.sadecki@LIGO.ORG - posted 08:33, Monday 17 June 2019 - last comment - 14:51, Friday 21 June 2019(49972)

Out of Observe 15:31-15:33 UTC

Transitioned to SEI EQ mode which kicks us out of Observing. Went back to Observing after transient SDFs cleared themselves.

Comments related to this report

jeffrey.kissel@LIGO.ORG - 10:01, Monday 17 June 2019 (49976)DetChar, SEI

Link

Tagging @DetChar and SEI for data in seismic's sensor correction configuration transition studies.

@DetChar -- the operators have been dilligently logging when they're transitioning from our nominal seismic sensor correction configuration to our earthquake configuration. Can y'all take a look at these times thus far in O3 and make and quantitative statements about how the change in configuration impacts the IFO and the searches? Similar question about the actual *transition,* with an eye towards answering the question "do we need to take the IFO out of observation ready to make the switch, or can we treat it like violin mode damping?"

In order to facilitate this study, I'll take a moment to peruse past aLOGs and make sure DetChar and SEI have been tagged.

jeffrey.kissel@LIGO.ORG - 14:51, Friday 21 June 2019 (50115)

Link

For longer term study, I've opened FRS Ticket 13123.

H1 General

Link

travis.sadecki@LIGO.ORG - posted 08:18, Monday 17 June 2019 (49971)

Ops Day Shift Transition

TITLE: 06/17 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 112Mpc
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    Wind: 7mph Gusts, 5mph 5min avg
    Primary useism: 0.07 μm/s
    Secondary useism: 0.06 μm/s
QUICK SUMMARY: Incoming 5.8 EQ from China. Will transition to SEI EQ mode soon. No other issues to report.

LHO General

Link

thomas.shaffer@LIGO.ORG - posted 08:14, Monday 17 June 2019 (49968)

Ops Owl Shift Summary

TITLE: 06/18 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 115Mpc
INCOMING OPERATOR: Travis
SHIFT SUMMARY: Recovery from the earthquake was nothing unsual. I was able to lock DRMI without issue but ASC would kill the lock, so I then went for an initial alignment. Relocking there was also pretty normal. Early in the morning Karen found a vistor asleep on site and the Sheriff was called. The vistor was taken away from the site in an ambulance.

LOG:

0725 Adjusted ALSX fiber polarization from 24 to 18%
0903 Started initial alignment, after unable to engage DRMI ASC without lock loss.
0943 Lock loss at CARM to TR. FSS took some time to recover.
1032 Observing
1152 Out of Observing, Squeezer lost lock
1154 Observing

H1 General

Link

thomas.shaffer@LIGO.ORG - posted 04:55, Monday 17 June 2019 (49970)

Out of Observing 1152-1154 UTC

Squeezer lost lock, but then relocked quickly.

H1 General

Link

thomas.shaffer@LIGO.ORG - posted 03:36, Monday 17 June 2019 (49969)

Observing 1032 UTC

Tried to lock without an initial alignment, but DRMI would lose lock when engaging ASC. Ran an initial alignment and then suddenly lost lock at CARM ON TR, the FSS then took a bit of time to relock. Next attempt made it all the way.

Accepted ASC AS A RF 36 Q differences, not sure why they are different.

Images attached to this report

LHO General

Link

thomas.shaffer@LIGO.ORG - posted 00:22, Monday 17 June 2019 (49967)

Ops Owl Shift Transition

TITLE: 06/17 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Earthquake
OUTGOING OPERATOR: Ed
CURRENT ENVIRONMENT:
    Wind: 18mph Gusts, 14mph 5min avg
    Primary useism: 0.66 μm/s
    Secondary useism: 0.11 μm/s
QUICK SUMMARY: Lost lock as I showed up from a 6.2 in Tonga. I will be relocking soon as the earth calms down.

H1 General

Link

edmond.merilh@LIGO.ORG - posted 00:18, Monday 17 June 2019 (49966)

Shift Summary - Eve

TITLE: 06/17 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Earthquake
INCOMING OPERATOR: TJ
SHIFT SUMMARY:

Tonga EQ took us down. Handing off unlocked H1 to TJ.
LOG:

23:42 Dick G in with a new S.U.R.F. student

H1 General (SEI)

Link

edmond.merilh@LIGO.ORG - posted 23:54, Sunday 16 June 2019 - last comment - 10:02, Monday 17 June 2019(49964)

Switched to Earthquake 6:28UTC

switched after 3 incoming warnings 6.2 from Tonga area. Intent bit was switched off and then on again.

Comments related to this report

edmond.merilh@LIGO.ORG - 23:54, Sunday 16 June 2019 (49965)

Link

not enough. Lockloss at n6:43 UTC.

jeffrey.kissel@LIGO.ORG - 10:02, Monday 17 June 2019 (49977)DetChar, SEI

Link

Tagging @DetChar and SEI for data in seismic's sensor correction configuration transition studies.

H1 General

Link

edmond.merilh@LIGO.ORG - posted 16:15, Sunday 16 June 2019 (49963)

Shift Transition - Eve

TITLE: 06/16 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 115Mpc
OUTGOING OPERATOR: Travis
CURRENT ENVIRONMENT:
    Wind: 19mph Gusts, 16mph 5min avg
    Primary useism: 0.07 μm/s
    Secondary useism: 0.06 μm/s
QUICK SUMMARY:

H1 Back to Observing 23:15UTC

H1 General

Link

travis.sadecki@LIGO.ORG - posted 16:02, Sunday 16 June 2019 (49962)

Ops Day Shift Summary

TITLE: 06/16 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Ed
SHIFT SUMMARY: Nearly relocked at the end of shift.
LOG: See previous aLogs.

H1 General

Link

travis.sadecki@LIGO.ORG - posted 16:01, Sunday 16 June 2019 (49961)

Relocking notes

Adjusted BS and PRM during PRMI lock.
BS saturation alarm after DRMI locked. This unlocked DRMI but left ISC_LOCK confused as it didn't go to DOWN, but got stuck at DRMI_LOCKED_CHECK_ASC. Took ISC_LOCK to MANUAL then DOWN and starting over.

H1 General

Link

travis.sadecki@LIGO.ORG - posted 14:54, Sunday 16 June 2019 (49960)

Lockloss 21:51 UTC

5.8 EQ from Tonga. Since I haven't had much luck transitioning to SEI EQ mode the past couple of days, and this being of borderline magnitude, I decided not to transition. Apparently that was the wrong choice.

H1 General

Link

travis.sadecki@LIGO.ORG - posted 13:36, Sunday 16 June 2019 (49959)

GRB alert

Latency is 17125 seconds. Conferred with LLO and we will be ignoring this trigger.

H1 General

Link

travis.sadecki@LIGO.ORG - posted 11:52, Sunday 16 June 2019 (49956)

Relocking notes

Could only get ALS X fiber polarization to 21% (DIAG_MAIN message not cleared)
ALS for both X and Y arm struggling to stay locked long enough to get through LOCKING_ALS
Ran through IA just for green arms. After WFS were offloaded, ALS seems much more stable. Perhaps this isn't being done in ISC_LOCK?
Touched up BS for PRMI lock.
DRMI not locking. Going for full IA.
IA complete using IA Guardian.
Very fast DRMI lock. Good.
Lockloss at DRMI_LOCKED_CHECK_ASC
DRMI locked very fast again.

Images attached to this report

H1 General

Link

travis.sadecki@LIGO.ORG - posted 11:25, Sunday 16 June 2019 (49958)

Observing at 18:24 UTC