I moved PR3in order to recover the transmitted green light in the X arm.

P: -6.8urad --> -9.7 urad

Y: 59 urad --> 60.7 urad

Transmitted green light:

Y arm: 0.72 (I didn"t do anything)

X arm: 0.2 -->  0.8

IMC output power: 2.2 W