* Site work * 1/30 - 2/3 Repair the leak at OMC area * PLL with new laser * FPMI lock * Lock enable * Silent run sometimes performed * 2022/12/28 evening - 2023/01/14 morning [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=23463|klog23463]] * Overnight * FPMI with DC readout and ISS locked * 2023/01/15 6:10:00 - 8:10:00(JST) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=23575|klog23575]] * PRFPMI lock trial * PRMI lock stable * Establish the initial alignment * Bottle neck is the noise level of ALS * It made difficult to hand over from GR to IR * How to brand for hand over * Implementation of the PNC(Phase Noise Cancellation) to reduce the 0.4Hz resonant peak * In vac optical table and put the steering mirror on it * Reducing the air disturbance * ASC implementation * Evaluate offset map * Trial of the implementation of the ASC loop