* '''Yarm Alignment'''
  1. '''[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12179 | For Wave Front Sensing Engaging (Dec/17/2019 Kokeyama)]]'''
   * After the main LSC_LOCK guardian acquires the OBSERVATION mode, open the human_[[ http://k1sum0.kagra.icrr.u-tokyo.ac.jp/~controls/Manual/img/EY_HUMAN_ASC.png |EY screen]] from [[http://k1sum0.kagra.icrr.u-tokyo.ac.jp/~controls/Manual/img/COMMISSIONING/commissioning_doc.png|Commissioning.Doc]].
   *Turn on the left top button. It indicates the alignment time. 
   *Tweak the EY alignment by the green sliders on the human_EY screen.
    *- You aim the AS port signals make darker.
    *- Open the ndscope from the same screen to check the AS DC darkness.
    *- Move EY carefully and slowly!
   * Turn off the left top button to go to the real observation mode.