J. Kissel, N. Kijbunchoo, K. Izumi

After deciding that we've damped the 504.8 [Hz] violin mode enough to advance to DC readout, we got a few minutes of DC readout on ETMX, and then we noticed that wind began to pick up speed a few hours ago. We lost lock, and during recovery DRMI was taking particularly long to lock back up. From Izumisan we learned that 
- If it takes particularly long for DRMI to lock up, e.g. greater than ~15 minutes,
- If one hasn't run initial alignment for quite some time, and
- The AS port shows flashes that are not strictly LG00 modes, but LG10/01 or any higher order modes
it's likely that one needs to redo initial alignment.

We began embarking on initially alignment, and found the arms difficult to lock on green. I suggested we move the blend frequency up on the beam line directions of ETMX and ETMY, as is common practice when winds are > 20 [mph] as they are now.

Just after we increased the blend frequency, the PSL laser tripped at 16:50 PDT / 23:50 UTC. Quick (and at this point only superficial) investigations do not reveal a reason. Regrettably, the global PSL team is rather busy with LLO's laser at the moment (see LLO aLOG 17959, and subsequent entries).

Kiwamu and Nutsinee are in the PSL diode room now recovering (and have done so as I finish this log).

The usual perfect storm on the first day of an attempt to leave the IFO alone and collect data!