nutsinee.kijbunchoo@LIGO.ORG - posted 07:01, Monday 31 October 2016 (31020)
The 4753 Hz is not a single line
The mode is made of two lines, 4735.05 Hz and 4735.09 Hz. Not sure why I didn't see this before. I increased the BP to be 1 Hz wide so the phase change between the two lines are not too far apart. Now damping at -60 deg phase, 0.02 gain.