Hido 

Abstract
I performed a cross-check.
I realized that the normalization frequency at A_itmxtm/A_itmy_tm is incorrect, A_itmxtm/A_itmytm values calculated by yamaT-asn are normlized at 1 Hz not 10 Hz.
Other values are consisitent within error.

Details
1. Optial gain (Free-Swinging Michelson)
i used finge data from 1402745378 to 1402745442 and estimate Optical gain.
The effects discussed in klog#29958 are taken into account in the value of optical gain in Fig.1.
H_mich = 1.1425e09 +/- 0.0159e09 [ct/m]

2. Actuaator efficiency of BS
Actuaator efficiency of BS, H_bstm, was determined by fitting from the OLTF measurements and MICH model.
Fig. 2 is the fitting results and Fig.3 is the residual plot.
H_bstm = 6.040e-11 +/- 0.016e-11 [m/ct] at 1 Hz

3. Actuaator efficiencies of ITMX/ITMY
By taking ITMs/BS * H_bstm, I estimated actuaator efficiencies of ITMs.
Therefore, the ratio of the two transfer functions, ITMs -> MICH_IN1 and BS -> MICH_IN1, was calculated.
Fig. 4/5 show ITMs/BS and the fitting results.
ITMX/BS = 4.808e-02 +/- 0.037e-02
ITMY/BS = 3.585e-02 +/- 0.036e-02

Finally, actuaator efficiencse of ITMs as below:
H_itmxtm = 2.904e-12 +/- 0.024e-12 [m/ct] at 1 Hz,
H_itmytm = 2.165e-12 +/- 0.023e-12 [m/ct] at 1 Hz.