With Yano-san,

We set target for PRM AR side.

1. Set vertical laser leveler between PRM and PR2.

2. Aligned vertical line with PRM recoilmass scratch line and PR2 recoilmass scrach line.

3. Set holizontal laser leveler with Tomaru-san's line at AR side.(Center of the chamber flange line. That was used for checking mirror height.)

4. Set target at AR side, and target plate was adjusted with holizontal laser leveler and vertical laser leveler.

We will set HR side target on next Monday.