* Overall schedule
 * End of July - End of August : Pumping down center area
 * Sep - Commissioning
* X arm commissioning
 * Both IR and GR cavity lock keeping
 * IX : Cooling down the duct shield TM~250 K
 * EX : Cooling down the duct and two radiation shield TM~110K
 * Finesse and TM position by TCam are ongoing
 * TMSX optical table characterization : early July : After this, we can start ASC
* Y arm commissioning
 * Pumping down started
 * EY has leak point, we will open the chamber soon
 * IR and GR lock succeeded!
* Center area commissioning
 * Main IR 
  * Table configuration : ongoing
   * IFO refl table
   * POP (Pick of PR2) table
    * POP forward QPD installed
  * Interesting channel for X arm IR lock : [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14080|JGWDoc14080]]
 * Mirror cleaning(first contact) and mid-size baffle installation
  * PR2 : Installed
  * SR2 : Installed
  * BS : Installed
  * PRM : Installed
  * PR3 : First contact (maybe) done
  * SR3 : Not yet
  * SRM : Not yet (When replacement?)
 * IMC (Input Mode Cleaner)
  * ASC (Alignment Sensing and Control) done
 * Suspension commissioning : ongoing
  * PR's suspension middle of June - end of June (two weeks)
 * OMC installation : done
  * Some unexpected glitch : circuit?
  * Alignment : partially done : BS fluctuation large and SRM replacement
  * TF measurement : ongoing
 * High power laser 
  * Accepted to install to KAGRA site
  * When exchange the laser source : Unknown
 * ISS (Intensity Stabilization System) installation : unknown
  * Must item before closing chamber