Environment:  Fairly quiet shift with only moderate wind for first 1/3 of the shift (died down). 

At 12:47utc (5:47amPST) 8+hr lock ended.

Lockloss possibilities:  PR3 oscillations a few seconds prior.  Seismic event seen in 0.03- 0.1Hz band, but no earthquakes seen online.  No wind at all.

Acquisition afterward hasn't been trivial.  Y-arm was a bit off, so tweaked on ETMy.  Noticed a bit of a yaw misalignment in AS_AIR video while locked in Michelson, so moved the BS -0.3 clicks in yaw & this made the flashing much better.  After this the flashes looked much better when attempting DRMI acquisition.  Have taken H1 up to various points in the Guardian script prior to the Engage_ASC step.  Alignment looks good, so fear there is another issue with H1.

Dan does not see anything obvious via oplevs.

There were some small changes made to the Guardian script (basically change ramp times to investigate why we keep  dropping out of lock.  Basically we are wanting to fix H1!).  Technically, this is a Guardian script change and should have a work permit for this.

Shift Summary:

Decent shift with H1 locked for over half of the shift.  Frustrating lock acquisition-ing after the lockloss for the end of shift.