patrick.thomas@LIGO.ORG - posted 01:40, Sunday 29 November 2015 (23801)
Setting request to NLN and going home
I believe I have moved IM1 and IM2 to there approximate positions before the HAM2 ISI trip (alog 23777). I moved IM1 in PITCH from 800 to 592. I moved IM2 in PITCH from 17980 to 17232. I started an initial alignment. I got to the point where both ALS_XARM and ALS_YARM were at the INITIAL_ALIGNMENT state and was waiting for the ASC convergence. However when I got to GREEN_WFS_OFFLOADED the Y arm dropped in power. I am now struggling to bring it back.
I'm guessing related to tidal diagnostic messages.
I just noticed that the DARM spectrum is rising significantly on and off up to around 100 Hz. There are diagnostic messages related to TIDAL LIMITS (see attached screenshots). Starting investigation.
Plots of signals I believe are being referred to in these diagnostic messages for last 3 hours.
Quiet shift so far. A couple of SUS ETMY saturations. Still in observing. No significant changes in environment.
TITLE: 11/28 [EVE Shift]: 00:00-08:00 UTC (16:00-00:00 PDT), all times posted in UTC STATE Of H1: Observing @ ~ 80 MPc. OUTGOING OPERATOR: Corey QUICK SUMMARY: From the cameras: The lights are off in the LVEA. The lights are off in the PSL enclosure. I can not tell if the lights are on or off at mid X and mid Y. The lights are off at end X. The lights are off at end Y. The 0.03 - 0.1 Hz (earthquake) seismic band is between ~ 0.02 and 0.2 um/s. The 0.1 - 0.3 Hz (microseism) seismic band is between ~ 0.1 and 0.5 um/s. The winds are between ~ 0 and 20 mph. The ISI blends are on Quite_90. From pinging: CDS WAP is off at the LVEA. CDS WAP is on at mid X. CDS WAP is on at mid Y. CDS WAP is off at end X. CDS WAP is off at end Y.
TITLE: 11/28 DAY Shift: 16:00-00:00UTC (08:00-16:00PDT), all times posted in UTC
STATE of H1: Locked for 23+hrs & range is at 80Mpc
Incoming Operator: Patrick
Support: None needed.
Quick Summary:
These are the types of shifts we want!
Shift Log:
Quiet & Cold shift. Temperatures around 21degF. Winds are under 3mph. useism has a slight increasing trend over last 12hrs, but the LVEA is low at around 0.275um/s. the earthquake band is mainly flat, but has had a slow increase over the last 4hrs (no EQ notices though).
H1 range has had a trend down from 80mc to 75Mpc over the last half hour. ETMy continues to saturate.
ASC DHARD Pit (red channel on wall) continues to have a large amplitude.
Ed mentioned a CRITICAL alarm yesterday for H0:FMC-CS_LVEA_REHEAT_2B_DEGF. I'm seeing this not as a CRITICAL Alarm, but as an alarm for the AIRHANDLER, and it is MAJOR (i.e. RED). Looks like it started alarming around midnight a few times (i.e. when it's been cold?). Attached is a trend of relevant channels. I will NOT contact Bubba/John since from Ed's alog it sounded like they are already on top of this.
O1 days 66 - 71. Quiet week, no restarts during maintenance Tuesday.
model restarts logged for Fri 27/Nov/2015 No restarts reported
model restarts logged for Thu 26/Nov/2015 No restarts reported
model restarts logged for Wed 25/Nov/2015 No restarts reported
model restarts logged for Tue 24/Nov/2015 No restarts reported
model restarts logged for Mon 23/Nov/2015 No restarts reported
model restarts logged for Sun 22/Nov/2015 No restarts reported
