[Takahashi, Okutomi, Fujii]

Ladies and gentlemen,

We have installed PR3 mirror into the chamber!
Yes, we did it!

We have set the KOACH filters around and inside the vacuum chamber.
After that, the top chamber was opened.
Then, we suspended the suspension using the turnbuckles from the crane, and lifted by lowering the jacks below the top plate.
The suspension can sit on the four legs on the inner frame by aligning the posision using the alignment poles and screws.

We have not found any damage on the suspension so far.
IM OSEM flags seem to be alive as far as we checked by eyes.

The tasks are not completed yet, but I really appreciate the KAGRA members who have supported our work, especially VIS members.
Thank you very much, and let's see the beam at the both end!

Tomorrow's plan:
Cabling, signal check, susupension release, and oplev setting