TITLE: 09/06 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 150Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:

One lockloss at 04:43 UTC

1. While the cause is unknown, I it happened as soon as a DCPD glitch happened (appeared on DARM). Three similar glitches happened before this but did not cause a lockloss.
2. Unlike yesterday, the lock acquisition was not fully automatic:
   1. Had to move EY due to ALSY not catching after watching it for a bit. I moved YAW significantly (about 9-12 cts) and PIT about 3-6 counts while looking at the camera
   2. DRMI did not catch and we went to PRMI, which then had difficulty and went to check mich fringes.
   3. PRMI was very unstable once locked and would cycle between locking and losing lock. To tackle this, I moved the BS YAW by 9 counts (3 taps of 3) when it was locked since I could see the two resolved beams not well overlayed on the AS AIR Camera. This worked.
3. After this, DRMI locked smoothly and locking was fully automatic.
4. NLN Achieved at 06:10 UTC and OBSERVING at 06:24 UTC (with 14 minutes to wait for servo, consistent with last few lock acquisitons - alogs show 10-25 minutes generally).

Nothing else of significance to report

LOG:

None