[Aso, Nakano]

We checked the frequency noise projection to DARM.

• The frequency noise contribution to DARM is more than 100 times smaller from our sensitivity.
• The reason why the CARM contribution seems close to the DARM sensitivity is the ADC noise of the CARM noise monitor point (REFL_PDA1_45I). Now the gurdian turn it on in PRFPMI_LSC_LOCKED_RF state.
• The coupling factor fluctuating a lot by a factor of 10. That means the CMRR of the frequency noise changing by factor of 10. We should investigagte it at some point.
• The curve put on the DARM sensitivity shows the upperlimit as shown in the attached movie.