ryan.crouch@LIGO.ORG - posted 07:58, Friday 13 October 2023 - last comment - 12:11, Friday 13 October 2023(73434)
OPS Friday day shift start
TITLE: 10/13 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 149Mpc
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 2mph Gusts, 1mph 5min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.17 μm/s
QUICK SUMMARY:
- All systems looks good (Theres a PCAL-EY test point still open from yesterday)
- DM10 in the LVEA was alarming (BSC1) but has gone down since its alarm ~1hr ago
- We've been locked for 3:30, in observing since 11:38UTC
- We will have some commissioning time from 16:00 - 18:00UTC today (9am - 11am PST)
Update on outbuilding weather station restarts: After over a week of having to daily restart the mid and end station weather station IOCs at 4am for a failure in the previous hour, the last time we had to do this was Mon 9th Oct. This is similar to what happened in early January this year, for about a week the weather stations stopped updating around 03:20 in the morning, and then the problem went away by itself.
I did another round of serching h0epics's log files, crontab, anacron, etc. but found nothing which would cause this.
Decreased range in the IFO this morning vs last night appears to be due to DARM above ~200Hz. This shows up in the SQZ BLRMs too, attached plot. Today the PRC has 0.15W less than yesterday, but this is a normal fluctuation. Nothing has changed in the TCS system.
In response to Camilla's finding, and for her RH tests right now 73445, we have changed the sqz angle by changing the CLF DEMOD RF6 phase from 150 to 142. Blue BLRMS_5_DB_MON at 1.7 kHz improved maybe 0.5dB.