Originally owned by Kawamura Group.
Used for iKAGRA PSL, IMC, and IFI beam measurements until roughly February 2016 by people from Kawamura Group and Somiya Group.
Sent back to Kashiwa in April 2016.
Sent to Kamioka on January 18, 2017.
Brought inside the mine on January 25, 2017.
Brought inside the MCF clean booth on January 26, 2017