TITLE: 05/04 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 152Mpc
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 20mph Gusts, 17mph 5min avg
Primary useism: 0.06 μm/s
Secondary useism: 0.11 μm/s
QUICK SUMMARY:
H1 is still locked after 40 hours, and still OBSERVING!
SUS Violin update:
EX mode9 is still elevated but is going down. I have been adjusting the gain H1:SUS-ETMX_L2_DAMP_MODE9_GAIN to increase the rate that it declines while also trying to make the drive actuations ( H1:SUS-ETMX_L2_DAMP_MODE9_OUTPUT ) less than 1200 counts but greater than 800 to maximize the rate that we damp the Violin mode.
CAL Sweeps:
I have requested (from Virgo & LLO) that the Saturday Calibration time happen at 20:30 UTC to allow time for the Violin to damp more before calibration sweeps. All sites have agreed to 20:30 UTC Commissioning time.