TITLE: 04/02 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
INCOMING OPERATOR: Ed
SHIFT SUMMARY:

- Why do filters 9 and 10 for H1:SUS-MC2_M3_LOCK_L keep switching between each lock? (see SDF differences for each observing alog)
- Why was there an SDF difference for H1:LSC-OUTPUT_MTRX_11_9? Did someone change some code during the last lock before my shift?
- Why are there always SDF differences for the H1CALCS channels?
- Why the trouble with the ALS X arm?

LOG:

07:59 UTC Observing
09:25 UTC Lock loss. Relocking.
Not getting X arm ALS to lock above ~.9. Tried clearing wfs. Tried unlocking and moving ETMX to get higher flashes. No flashes going over ~.9. Tried moving TMSX. Got higher flashes almost to 1. Set back to LOCKED_SLOW_W_GR_WFS_PUM. Locked around 1 then fell off after about ~30 sec. Moved TMSX in pitch while leaving it locked. Brought up to over 1. Moved on.
Stopped at LOCK_PRMI to adjust PRM and BS.
Signals look good at DRMI_LOCKED_CHECK_ASC. Moving on.
10:22 UTC Observing
10:30 - 10:47 UTC Stepped out of control room
11:27 UTC Lock loss. Relocking.
More trouble with the ALS X arm transmission slowly falling, coming back, then falling again.
Starting initial alignment.
12:17 UTC GRB notification (E328668). Not locked, ignoring.
12:20 UTC Done initial alignment.
12:57 UTC Observing.