TITLE: 05/22 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 15mph Gusts, 10mph 5min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.14 μm/s

Environmental NOTEs: 

• About 1hr ago there's been a lull/drop in winds where gusts were in the 30-35mph range and now gusts are about 15-20mph.  Crossing fingers that winds stay calm!!  TJ had me switch OBSERVATORY MODE from WIND to LOCK ACQUISITION.
• Microseism has been slowly ramping up over last 15hrs.

QUICK SUMMARY:

(My first EVE shifts since Mar 2020!)

H1 was in the middle of an InitialAlignment when I arrived (currently locking at ENGAGE ASC FOR FULL IFO).  Received full rundown from Ryan on how locking has been today (and over the weekend for him).  Items Of Note:

• PI Mode 29 was the reason for the two locklosses in the last 10hrs (seem to happen about 2.5hrs into lock).
  • There was discussion of Ring Heater changes to address this, but this will probably be punted to later.
• When we are close to OBSERVING, notify LLO ahead of time.
• Elenna Filters (alog 69785):  After thermalization (~3hrs), engage new MICH/SRCL FF filters.
• Nuc30 needs attention every few minutes (monitor settings change?  Something we've noticed in recent weeks).  Eric has a new fix which makes it quick:
  • Open Terminal
  • ssh controls@nuc30
  • startup/launch.sh