J. Driggers, S. Dwyer, J. Kissel, E. Merilh, K. Merfeld 

Given the afternoon's earthquake and apparently "new" trouble with ALS DIFF beatnote being too low (LHO aLOG 51280), we ran out of time to today to complete the plan I laid out in Part 1's LHO aLOG 51275.

Instead, we
    (a) *Did* run an initial alignment, because initially after the earthquake our PRMI alignment looked poor and we started suspecting the DIFF beatnote and thought an initial alignment would help the arms / beam splitter into an alignment where the beatnote was good (it didn't).
    (b) Aligned the beatnote on ISCT1
    (c) reverted the spot positions to the Post-July 31 values, and are now
    (d) just pushing to get back to nominal low noise at 37W.
In other words -- reverted all of our changes (except for the DIFF beat note improvement, so we'll have to remember to look at it again once we do successfully move the spots and save it as an alignment reference), and are just getting back to how we've been the past few weeks.

Operators have no new notes, and should just carry on as we have been with no fear of performing an initial alignment if they deem it necessary, and they should expect the same lock acquisition success rate as we've had over the past few weeks.

We'll formulate a modified plan tomorrow (though the goals will remain the same -- we just ran out of time with a functional, robustly locking IFO today).
    On the list of things to remember to adjust once we get the the global alignment position changed successfully:
    (1) Initial alignment references
    (2) OMC ASC alignment offsets
    (3) On table ISCT1 DIFF beatnote alignment