(1) Suspension health check for IX, EX, PR3, PR2 (IMMT1/2) : (Ushiba-kun and his selected persons)

Sensors' outputs: Spectrum are healthy?, Sensor output positions are in their acceptable ranges?

Transfer function: As we expected? No touching? well decoupling within degrees of freedom?

Actuator function: They works with expected strength? Well repeatability?

1/10)?

Offload in each actuators: Positions are not around the edge of the dynamic ranges? Even if they exist, they can be acceptable?

Resonance/motion damping: The Mirror speed is well stabilized below 0. 3um/sec?

Temp sensors in the cryo-suspensions: They are properly obtained ?

(2)Oplev Check for IX, EX, PR3, PR2 (IMMT1/2) (Yokozawa-kun and his selected persons)

Beam path clearance: well away from obstacle structures? The beams hit around in the center of steering mirrors?

QPD centering: Beams are set around the QPD center? (This centering will satisfy the sensors dynamic ranges in the suspension systems? More offload is necessary?)

Clean signals: No seriously large line noises / and white noises?

Covering: the covers kill light from outside well ?

Beam source degradation: No serious power/beam quality degradation until now?

(3)CAL (ChenDan-kun and his selected person) Please explain what you did after the review.

Beam diameter checks.

Beam path realignment after the accident,

Spectrum health check,

Mirror actuators health check,

(4)Tcam (Yokozawa-kun and ChenDan kun, and Yamamoto-kun?) T-cam system stability,

Image can be obtained without illuminators?

Focus and inclination are proper?

(5)TMSX optical system (Akutsu-kun and his selected persons) Trans image are captured and its image is clear inside the image area?

PD was set to show the max output when we center the green beam on the ETMY mirror?

Clear optical paths on the way to the TMSX detectors(PD/QPDs)?

(6)Baffle PDs (Yokozawa-kun and his selected persons) Outputs are alive, except for one dead one?

Clear signals without any serious line noises and high noise floors?

(7)Baffles (Akutsu-kun and his selected persons) Setting positions: designed positions?

Freely suspended?: position sensors are working properly? (spectrum is OK?)

The resonance damping level is proper?: The proper damping should be realized when the systems are cooled.

temp data: The temp sensors work well?

(8)Vacuum system (Kimura-san / Uchiyama-kun and their selected persons) GV(BS-IXC) is closed?

The vacuum sensors are working well?

The flanges that used to be opened are properly closed? Do you have check lists?

The remedy point check between EXC and TMSX

Not to forget to put level gauges to sense the V-tank height

check of oplev windows, especially.

(9)Vacuum tank cleaning/ lost items

IXA/EXA: chendan-kun, yokozawa-kun

IEXC:Cryo members.

lost items check: miyoki and so on.

(10)Cryo-system (Kimura-san and his selected persons) Temp data are properly obtained?

Insulators are attached properly?

The new cryocoolers are ever tested even for very short duration in the past after setting?

Heaters for windows on the cryo-shields properly works?

(11)Optics and stray light check in POP/REFL/IMCREFL/MCE tables ( Michimura-kun/Akutsu-kun and his selected members?) Maybe this work cannot be finished before 10th, but in 13th week in December, if possible.

Used optics are well understood about their optical properties and damage thresholds?

Stray lights are well dumped?