TITLE: 09/30 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 153Mpc
INCOMING OPERATOR: Oli
SHIFT SUMMARY:

Uknown Lockloss: 00:05 UTC
relocking started at 00:06 UTC

Nominal_LOW_NOISE reached and PI Mode 31 Spiked to 150! at 00:58 UTC

ITMY Mode 5 is increasing steadily since the beggining of the lock 3:08 UTC I changed the Damping setting from -0.04 to 0 to +0.04 to see If I could damp it. Channel name : H1:SUS-ITMY_L2_DAMP_MODE5_GAIN
3:31 UTC +0.04 gain is taking ITMY mode 5 back down.
The issue is that ITMY Mode 5 is coupled with ITMY mode 6 and while I have changed the gain setting for Mode5 and now mode 5 is slowly going down. Unfortunately Mode 6 is still ringing up and has been for the last 3 locks.
Next shift should keep an eye on those Violin modes. Plots for the mode 5 & mode 6  over the last 2 days attached.
Tagging SUS.
 

LOG:
no log