Fig 2 compare the spectra of B1 and B5 with some science mode data from January. Note that the comparison is not completely fair, since at step 7 there will still be much phase noise and the SSFS is not yet locked in step 3. As expected, the resonances of the end mirrors around 5545 Hz are still there and the ones from the old input mirrors at 5585 Hz are gone. My guess for the new frequencis would be 5671 Hz for NI (which should be higher in B5 according to Michele's theory) and 5675 Hz for the WI, but this has to be confirmed by correlating the frequencies with temperature changes of the mirrors. Fig 3 shows the butterfly modes, the end mirrors are around 3880 Hz and old inputs around 3920 Hz, no idea about the new mirrors. Fig 4 shows the violin modes, some modes are missing but no new ones have appeared, but these might still be covered by all kinds of low frequency noise.
