The recent alignment shift in the IFO's output arm caused the SR3 optical lever beam to fall off of its QPD, so I re-centered it this morning. I found the OpLev with the following readings:
The SUM counts are very low (usual is just over 20k), indicating the OpLev beam was barely on its QPD. In fact, as I adjusted the horizontal translation stage the yaw reading went further positive to ~31 µrad before moving towards 0. The OpLev is now re-centered with a normal SUM count reading, see attached picture. This closes LHO WP 11861.