[Yuta, Haoyu]
At POS, we found the power cable for p-pol PD was missing. But we found a power cable around POP table and used it for POS p-pol PD.
The camera looking at POS s-pol does not work. There is no signal. But the camera is warm and we assume the cables are connected. We also find the mount for the camera is not stable, so we fastened the screw. The camera needs realignment. Since we don't have the image, we cannot do this.
At POP, the steering mirror for RST4 is BB1-E03. The label is wrong (we didn't change it).
Gains of the 4 PDs (POP s-pol, POP p-pol, POS s-pol and POS p-pol) are all 40dB. Whitening filters for them are all off (no gain no filter).