TITLE: 11/21 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
SEI_ENV state: USEISM
Wind: 4mph Gusts, 3mph 3min avg
Primary useism: 0.04 μm/s
Secondary useism: 0.53 μm/s
QUICK SUMMARY: Just finished an initial alignment and working on getting DRMI. Looks like we have been unlocked for the past 8 hours. We last lost lock at 07:05 UTC, it then tried relocking until at 08:05 UTC it left CHECK_MICH_FRINGES and took itself to DOWN to run an initial alignment. However, it got stuck in READY (probably because the IMC was stuck at 10W), but it stayed there for four hours, then it looks like a couple earthquakes came in so it probably then just stayed there because the ground may have been moving too much. However, it wasn't until TJ fixed the 10W issue that it was able to start an initial alignment at 15:17 UTC. I know we don't have an actual OWL set, but I am surprised it didn't at least say in the log that assistance was required.
Last night we were stuck at 10W with the IMC unlocked because H1_MANAGER requested ISC_LOCK run an initial alignment while ISC_LOCK was already powering up to 10W to run check MICH. In the DOWN state of ISC_LOCK, it requests LASER_PWR to 2W, BUT ALIGN_IFO repeatedly requests LASER_PWR to 10W while the power is still adjusting. I have no idea why this would be necessary, and Sheila and I agreed that we should take it out. I've removed that portion of code and reloaded that node. If we run into whatever issue someone was trying to fix again, we will come up with a different solution.