AOS (Optical Levers)takaaki.yokozawa - 11:10 Tuesday 07 September 2021 (18173)
Print this reportPRM oplev recoveryI checked the status of oplev for PRM Even I didn't touch anything, the main beam were there close to the tilt QPD.
First, I removed the ND filters and replaced on the transmittance table. I aligned the injection port, now the beam was center of the tilt QPD.
