Alexa, Keita, Sheila,Elli

This morning we tried to improve the co-alingment of the green and red beams in the Y arm. We ended up adding some offsets to the Y transmon green QPDs, screen shot attached.  Elli took some photos using the pcal camera to make estimates of how centered we are on the ETMs. 

FIrst we tried to recover the alignment that we had last week durring the 8 Watt lock.  Keita noticed that the Y arm QPDs had moved significantly since that time.  We tried alingning the both TMSs using first the BOSEMs, then the baffle PD pointing.  With the WFS running to align the red to the X arm, we tried to move the test masses to restore the old positions on the QPDs.  This resulted in a very bad green alingment, we could have tried to recover this using QPD offsets and transmon pointing, but this didn't make a lot of sense so we didn't do it.  Instead we just tried to make sure the two beams were both aligned in the Y arm when the input pointing was alinged to the X arm, and MICH was well aligned.  We improved the situation compared to last night, but the co-alignment is still not great.