Yesterday, Gerardo bonded on the 1st prism to the LLO destined PUM. He used the new procedure which incorporateed adding borosilicate glass beads to space the glue joint more appropriately. He intends to proceed today with gluing in the magnet/flag discs and then the 2nd prism today/tomorrow.
Late last week, the discs and second prism were glued. The second prism glue joint did not cure with glue across the entire surface. Work continues at CIT/LHO to investigate why and revise procedures. After the optic was airbaked for additional cure as per the existing procedure, and no further change was noticed, it was decided to ship the PUM to LLO. It should arrive at LLO by Wed July 31st. LLO can proceed with using this PUM in the L1-ETMx monolithic assembly.