Reports until 21:51, Monday 27 May 2019
H1 General (PSL, SQZ)
corey.gray@LIGO.ORG - posted 21:51, Monday 27 May 2019 (49484)
H1 back to OBSERVING! Issues: RefCav low transmission, SQZ did not lock, ASC wants to drive off (SRM?) at OFFLOAD DRMI

4:43:  H1 back to OBSERVING!! (joining L1 & V1 who were in Stand Down from a couple of GRBs)

Very tough first 1/2 of the shift.  COMM Gain increase might have made locking tough at the beginning.  So, attempted to touch up RefCav alignment via picomotors (see earlier alog).

After my paltry RefCav improvement, attempted locking.  Something still not quire right.  Alignment looks decent from earlier INITIAL ALIGNMENT, but ASC drives someone off around OFFLOAD_DRMI, so need to be quick to correct it (I chose SRM yaw)!

Then moved all the way through Locking states up until the Squeezer (for this, since I'm clueless about the Squeezer, I called Georgia & we walked through it).  See her alog for specifics.  Once squeezer was locked, had a few SDFs to take care of (see below).  Also needed to raise the FSS COMM Gain from 25.0 to 26.5 to get rid of the DARM high freq noise "tail".

Notes: