Nutsinee, Elli

When we arrived the IMC was not locking so we changed some settings to get it to lock.  Changed PSL differacted power to 7% up from 3% by changing H1:PSL-ISS_REFSIGNAL to -1.96V.PSL.  The PSL power was 1W when 2W  was requested at the rotation stage.  So we searched for home, and now requested power matches again.

We tried to lock the arms in green without success.  The X-arm PLL was not locked, we changed Crystal frequency to 100MHz and now it is locking, however the ALS_XARM and Y_ARM guardian still report faults "PLL; PHD", and "Ref. Cav. Power", which we couldn't fix.  We noticed the reference cavitytTPD has dropped from 0.85 to 0.7 V in the last 24 hours (see plot.)

We aligned the corner station optics using the oplev trend to where they were last night in order to do the HWS alignment.  We noticed BS oplev Yaw is showing zero as output.  Without the green from the arms this alignment was difficult.  in any case, we are starting to think that this HWSY alignment is proving too difficult with the current (wrong) in-vacuum lens installed-  the beam return beam is the same size as the mirrors we are using, and we have never been able to get rid of clipping patterns on the beam.