Today's main mission is : adjustment of the arm length
+ Open the ETMX(Y) door, starting from 9:00 AM
+ Secure the ETMX(Y) test mass by tightening the earthquake stops.
+ Move the ETMX(Y) suspension closer to the door side
+ Inspect the OSEMs and take pictures before and after touching the OSEMs.
+ Level the table
+ Adjust the OSEM positions
+ Move the ETMX(Y) suspension to have designed X(Y)arm length
+ Level the table again
+ Align the ETMX(Y) such that the green beam resonate