TITLE:  12/09 EVE Shift 00:00-08:00UTC (16:00-00:00 PST), all times posted in UTC

STATE Of H1: Observing

SUPPORT: Sheila, Jenne, Evan

LOCK DURATION: 3 hrs

END-OF-SHIFT SUMMARY: Two locklosses. One caused by wind the other caused by the 45mHz rung up. FIND IR was difficult for both relocking. Low wind towards the end of shift. High useism. Using 45 mHz blend everywhere.

Activity:

00:08 Cleared ETMX timing error. Didn't go out of Observing.

00:18 Kyle driving back from Y28

00:53 Evan changed ETMX UIM offset. Out of Observation from 00:53:12-00:59:17

01:00 GRB alert received

01:52 Lockloss. Wind gust reached 36 mph. See alog24094 for details.

03:15:13 GRB alert received

03:15:34 Observing

03:55 Tidal signal started to ring up. Tried turning off ALS Tidal Servo. Didn't help. Tried switching ETMX blend to 90 mHz since we were going to lose lock anyway. Lockloss as a result.

04:40 Switched EX blend back to 45 mHz after two unsuccessful relocking attempts.

05:11 Back Observing.