TITLE: 11/17 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Aligning
INCOMING OPERATOR: Travis
SHIFT SUMMARY:

Shift started with Alignment work, then ASC work.
LOG:

• 4:15 Turned off lights in LVEA (and everywhere else).
• 4:35 PSL Noise Eater Needed to be toggled (Sheila)
• A couple of NLN locks & then ASC tweaking to make H1 more stable.
• Made it to Undisturbed toward the end of the shift for only a few minutes before making some more ASC changes.  Had a lockloss and handed over to Travis for the night.

To Do:

Run Sheila's ASC measurement  (30min) after we are locked for atleast a couple hours.

Initial Alignment Notes:

INPUT_ALIGN:  Xarm IR flashes were up to 0.6, but it wouldn't lock.  Tweaked on IM4 & PR2 a bit while looking at Xarm & ASAIR video, but didn't get anywhere.  Also doubled & quadrupled XARM gain to no avail.  Sheila did some work on filters and quadrupled gain and then this seemed to do the trick.

MICH_DARK_LOCKED:  The spot did not look dark (saturated) and look really misaligned.  Took it DOWN a few times.  Sheila noticed that the exposure was high.  After lowering it, had a spot to work with...but it still looked different from previous alignments.  Moved on after centering.

SRC_ALIGN:  Looked misaligned here.  Took it DOWN a few times.  Sheila showed me how to fix alignment by misaligning SRM & using SR2 to center the beam on the AS_C Photodetector.  This did the trick & then went back to locking.