[Takahashi, Ushiba]

We adjusted the mirror height with respect to the target marker on chamber flange center.
Fortunately, ITMX height can be easily recovered by changing the GAS setpoint to the ones just before vacuum evacuation before O4.
Figure 1 and 2 show the photos around magnets with laser leveler, which was set at target mirror height.

Note:
ITMX is slightly tilted in roll, so laser hits slightly high position in fig1 and low in fig2.