[Tanaka, Saito, Hirose]

Yesterday, as preparation for klog36845, we performed the initial alignment of Xarm and Yarm. Then, we noticed that the feedback signal for the OPLEV control of the PITYAW on SR3 had changed significantly compared to the previous Yarm flash. We confirmed that it has been specifically moved to 4/23 PM1:50JST(fig1). When we performed Lissajous the PITYAW on SR3 so that Yarm would flash again, the optimal YAW value had changed from -9 urad to 55 urad(55urad: fig2).