We had a big alignment party early this morning, and things are back to looking good. We have been very careful not to bump or touch tables any more than necessary. Also, we have removed the apertures from the BS and PRM, so there are no more apertures currently left in the chambers (this is good, since we won't forget).
We started over again from the PZTs, using the PRM aperture and the freestanding aperture in front of PR2, to get the height of the beam correct. We then moved PZTs to get the beam centered on BS, ITMY, ETMY. We had to do a little poking of PR2 (and PR3?) to get pitch correct everywhere.
We then went to ETMX to check beam pointing, and used BS to steer the beam to the center of ETMX. We checked that the beam was centered on ITMX.
We went through and ensured that ITMX, ITMY, PRM, SRM are all retroreflecting. We see nice MICH fringes, and we see some fringes (although still not so nice...) when we bring PRM and SRM into alignment.
We checked the AS path (with only MICH aligned), and made sure we are centered on all of the mirrors. This included steering a little bit on the mirrors on the OMC table, in yaw. Initially, AS was coming out of the vacuum, but hitting the side of the black beam tube. Now it gets nicely to the table.
For both AS and REFL, we made sure there is no clipping in the OMC chamber.
I recentered the beams for AS and REFL on their respective cameras.
IPPOS was centered on the QPD. This involved moving the first out-of-vac steering mirror sideways a small amount, since the beam was hitting the edge of the mirror. IPANG was aligned in-vac, and has been centered on the QPD.
Right now, Manasa, Jamie and Ayaka are doing some finishing touches work, checking that POY isn't clipping on OM2, the second steering mirror after the SRM, and they'll confirm that POX comes out of the chamber nicely, and that POP is also still coming out (by putting the green laser pointer back on that table, and making sure the green beam is co-aligned with the beam from PR2-PR3. Also on the list is checking the vertex oplevs. Steve and Manasa did some stuff with the ETM oplevs yesterday, but haven't had a chance to write about it yet.