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