I am done with the morning red locking.

Status of the interferometer:

• ETMX is aligned for the green WFS work.
• BS, which had been misaligned, is now aligned.
• PRMI-related optics are all left aligned. It is still fringing. Feel free to misalign if necessary.

PRMI doesn't lock

I have no luck for locking the PRMI this morning -- I was never able to catch a fringe even for a short period of time for some reason. The alignment seemed OK because I could see a build up of about 10000 counts at maximum in POPAIR_B_RF18_I_ERR. I only tried the demod phase of 133 deg in REFLAIR_45. I didn't try to change the LSC gains at all because I ran out the time. Also, all the settings were once set by Stefan's old script, setPRMI, instead of guardian's up-script and then I changed the MICH and PRCL gains to be 40 and -0.4 respectively.