(Jax, Alexa, Stefan, Sheila, Daniel)
Arm locking achieved!
As of 18:00 local time, we're getting lock to 00 at a level of 10000 cts on H1: ALS-Y_REFL_B_LF_OUT, out of a maximum of about 22000 cts. This is about a 50% drop.
We've touched up the pitch and yaw to improve locking characteristics. The current positions in pitch/yaw are
ETM: (-142.7, 197.0)
ITM: (247.5, -271.5)
The current gain on CMB-B input 1 is -18 dB.
As requested by Daniel, the TMS pointing is (-14400,9170). This hasn't changed from initial alignment conditions (yet).
Here are the positions of the BSC-ISI. CPS offsets are presented in nm.
HEPI-BSC1: Locked https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=6566
HEPI-BSC6 is control in position
ISI-BSC6: Blend at 250mHz with T240 and level 3 controller
ISI-BSC1: Blend at 250mHz with T240 and level 1 controller