Reports until 01:00, Friday 25 October 2019
H1 ISC (ISC)
craig.cahillane@LIGO.ORG - posted 01:00, Friday 25 October 2019 (52691)
Locking tonight
Dan, Cao, Craig

We came back from dinner and found DRMI locked.

Stepped DHARD to zero it's error signal using Hang's move_ARM_dev.py script in /opt/rtcds/userapps/release/asc/h1/scripts.  Got through DHARD_WFS.

Spent a long time in CARM_OFFSET_REDUCTION trying obvious realignment (arm DOFs) and non-obvious realignment (IM2,3 IFI clipping) to maximize light on REFL.  
Failed to get more light on the diode.  Pressed forward anyway, and as predicted CARM_TO_REFL killed the lock.

Lost lock once going through CARM_5_PICOMETERS by hand.  No discernible reason for this one, other than miserable alignment.

Lost lock again in CARM_150_PICOMETERS.  MICH ASC looked suspicious during this one.

Big mystery from tonight is REFL light levels.  They are half of what they ought to be according to the guardian.  (guardian wants more than 6.5 cts on LSC-REFL_A_LF_NORM_MON, we only get 3.5)