Title: 1/3 Eve Shift 0:00-8:00 UTC (16:00-24:00 PST). All times in UTC.
State of H1: Observing
Shift Summary: Started the shift with an unlocked IFO due to EQ. After EQ ringdown, aligned and locked IFO. Since going to Observing, we have been watching the slow degradation of power via POP_A_LF, much like last EVE. At one point we attempted to reverse the trend by adjusting ETMy pitch, but were thwarted by WFS control loops.
Activity log:
11:30 Lockloss probably from whatever is causing POP to drift down
13:15 Back to observing, shortly thereafte I notice that POP is once again drifting down. No clear cause, environment is quiet, RF45 seems to be behaving, ASC foms etc all look nominal.
14:45 Bubba starts clearing the parking lot. This has a noticeable effect on the IFO.