J. Kissel

After SRM's surrogate optic was replaced by the real thing yesterday (see LHO aLOG 38833), it was rebalanced and leveled this morning. With it's lower stage OSEMs still completely backed off, I ran a set of health-check transfer functions to confirm that the new mass is suspended well and that the dynamics are currently free and haven't changed much from the surrogate. I'm happy to report, the transfer functions look wonderful. I attach plots of its Top to Top (M1 to M1) transfer functions by itself (with more DOFs shown in detail) and a before vs. comparison between the composite and monolithic masses for both L1 and H1.

Nice work install team!!

All data and changes to transfer function plotting scripts have been committed to the SusSVN:
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/SRM/SAGM1/Data/
    2017-09-29_2216_H1SUSSRM_M1_WhiteNoise_L_0p01to50Hz.xml
    2017-09-29_2216_H1SUSSRM_M1_WhiteNoise_P_0p01to50Hz.xml
    2017-09-29_2216_H1SUSSRM_M1_WhiteNoise_R_0p01to50Hz.xml
    2017-09-29_2216_H1SUSSRM_M1_WhiteNoise_T_0p01to50Hz.xml
    2017-09-29_2216_H1SUSSRM_M1_WhiteNoise_V_0p01to50Hz.xml
    2017-09-29_2216_H1SUSSRM_M1_WhiteNoise_Y_0p01to50Hz.xml

/ligo/svncommon/SusSVN/sus/trunk/HSTS/Common/MatlabTools/
    plotHSTS_dtttfs_M1.m

/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/SRM/SAGM1/Results/
    2017-09-29_2216_H1SUSSRM_M1_ALL_TFs.pdf
    2017-09-29_2216_H1SUSSRM_M1.mat

/ligo/svncommon/SusSVN/sus/trunk/HSTS/Common/MatlabTools/
    plotallhsts_tfs_M1.m

/ligo/svncommon/SusSVN/sus/trunk/HSTS/Common/Data/
    allhstss_2017-09-29_Phase3a_H1SUSSRM_NoDamping_ALL_TFs.pdf
    allhstss_2017-09-29_Phase3a_H1SUSSRM_NoDamping_ALL_ZOOMED_TFs.pdf