TITLE: 04/14 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Corey
SHIFT SUMMARY: locked and in Observe almost the entire shift
LOG:

• TJ relocked H1, I looked at violins and put H1 in Observe
• very few glitches that caused a verbal alarm
• I created a template for violin modes that's one dtt file, in my directory, file name: diaggui_all_violins_high_res.xml
  • it has 4 plots, 500Hz violins, 1000Hz violins, 1500Hz violins, and the CAL-Delta power spectrum from 5Hz to 1600Hz (big picture)
  • it's running a bandwidth of 0.001Hz, and I was running it in fixed mode with 20 averages
  • a snapshot is attached, a bit of a glitch was captured, as seen on the CAL-Delta power spectrum
• 1st harmonic violin modes have been growing over the last day or so, when I look at multiple locks
• Violin modes around 1500Hz are rung up
• H1 lost lock right before the end of my shift, Corey is relocking, Verbal Alarms gave an HTTS alarm as H1 broke lock, which may not mean anything, but not one I hear very often