=== 2019/7/31(Wed.) ===

==== Schedule ====
 * ~7/31: Trial for DRMI with polarization.
 * 7/6~: Trial for mass lock

 * ITMX

 * ETMX

 * ITMY

 * ETMY


 * Long term:
  * 7/1-8/9: FPMI/DRFPMI commissioning
  * 8/12-10/4: ASC
  * 10/7-11/15: Post Commissioning
  * 11/18-12/13: Noise hunting

==== Report of work ====
 * Finesse of X arm became low to ~1000.
  * Transmitted light was low.
  * ETMX has frost again.
  * We decided to turn off the cooler.

 * ITMY motor was stuck actually. It reached to one direction of the limit of range. It was fixed.
  * More continuous works are planed.
  * Magnet was not off. Needs more investigation.



==== Work plan ====
 * DGS maintenance for exchanging k1dc0, adding BIO cards to k1ioo1 for ALS control (Yamamoto, Oshino)
  * VIS should go safe mode. (Fabian)
  * DC power source will be exchanged at ALS0 and ALS1 rack. (Kamiizumi)
 * AOS: Checking and exchanging laser for oplev, ETMY or PRM.
 * Type B: Releasing FR for all suspensions after finishing maintenance or afternoon.