J. Kissel, H. Paris, A. Pele, B. Shapiro

After spending all afternoon getting all the chambers up into their best (local) performance, I've used Stefan's instructions to lock the Y ARM on Red. So easy -- even I could do it! Thanks to all of those who've written scripts to automate the ALS and IMC :-). Interestingly, and I forgot to ask about it, but there's no need to run any down script when the lock is lost. One just runs the two scripts again (assuming your Beam Splitter alignment remains good).

OK, I wrote the aLOG too soon. There have been several lock stretches, and the ISI-BS has tripped. I detailed time line is written below, for as long as I stayed here.

Here's the configuration of the SEI/SUS during these stretched:

Cavity Lock: 
Chamber    HEPI                                   ISI                               SUS
HAM1       Locked                                 n/a                               n/a
HAM2       Floating, Alignment Offsets Only       Level 2 Isolated                  MC1, MC3, PRM damped Level 1.5; PR3 damped Level 1.0
HAM3       Floating, Alignment Offsets Only       Level 2 Isolated (eLIGO Blends)   MC2, PR2 damped Level 1.5 
BS         Level 2 Isolated (Position Locked)     Level 3 Isolated*                 BS damped Level 2.0
ITMY       Locked                                 Level 3 Isolated                  ITMY damped Level 2.1
ETMY       Level 2 Isolated (Position Locked)     Level 3 Isolated                  ETMY damped Level 2.1, TMSY damped Level 2.0

* I noticed ISI-BS had tripped around 2:53 UTC, but it may have been down for some time. I didn't bother bringing it back up, 'cause I didn't want to blow the cavity lock. Or another three hours.

All Optical Levers are well centered.

All BSC-ISIs have been brought up to the configuration outlined in LHO aLOG 7226, but just for posterity, this means:
Level 3 Isolation Filters
Blends at ST1 "T250mHz" and ST2 "250mHz"
GND to ST1 STS2 Sensor Correction is ON (The corner station ISIs are both using the beer-garden STS2)
ST1 to ST2 T240 Sensor Correction is ON
ST0 to ST1 HEPI L4C Feed-Forward is ON (with "FF01_2" filters)
The Input Gains for the L4Cs and GS13s are OFF (I *think* this means they're in low -gain mode). They're ON for the T240s.

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Time Line (all times UTC, Jul 25 2013)
2:27 Locked on Red
2:46 Lost Red Lock
2:47 Regained Red Lock
    2:50 Glitch in CARM_IN1!
    2:53 Noticed ISI-BS had tripped. All other ISIs are still fully operational
    2:57 Glitch in CARM_IN1!
3:00 Lost Red Lock
3:06 Regained Red Lock
    3:11:23 Glitch in CARM_IN1! 
    3:24:47 Glitch in CARM_IN1!
3:27 We begin to ignore the IFO and go home, be cause there's enough data in the can to get a 0.01 [Hz] measurement in the past (assuming those glitches don't spoil the spectra)... but may the lock last through the night!