TITLE: 11/18 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC

STATE of H1: Observing at 66.2053Mpc

INCOMING OPERATOR: TJ

SHIFT SUMMARY: Locked for 22 hours and counting. 

LOG:

07:50 Started ITMX HWS script (left it off to test some other script on Wednesday and forgot to run it)

08:01 Increased violin mode damping gain for ETMY 508.585

08:08 Chaged CO2Y power upper limit so the ODC bit is green. Accepted the change in SDF.

12:43 LLO lost lock. Took IFO out of Observing so I can do some PRM test for Sheila. Here's what happened:

• In ISC_LOCK, NLN>>PR3_SPOT_MOVE
• Zero PRC1, SRC1 gain
• Slowly brought PRM Yaw slide bar from 544.0 -> 535.0
• No obvious improvement in DARM. Slight improvement in optical gain (and BNS range).

13:36 LLO back to Observe. Slowly revert PRM gain and took some DARM spectrum in the process.

13:51 Back to Observing

~15:20 Joe moved a ladder from Mid of sec1 Y beamtube to Y12.

15:10-15:15 Weird noise in AS90/POP90 (see attachment). I was looking at Sheila's Build_ups striptool and only POPAIR_B_RF90 seems to see this.