Attached below are the first set of transfer function measurement results for the Tip Tilt suspension PM1 in HAM1 chamber. The purge air flow in chamber was reduced to enable good coherence value and minimum cross coupling for this in-air measurements, and the results are very much visible when compared to earlier data (not posted here) which was very noisy. The plots attached below are for Length, Pitch and Yaw degree of freedom. Yaw dof. still shows some cross coupling/unwanted peak at 1.28Hz approximately, however it should go away in vacuum.

The templates for this measurement are stored at the following location,

/ligo/svncommon/SusSVN/sus/trunk/HTTS/H1/PM1/SAGM1/Data

2025-05-14_2100_H1SUSPM1_M1_WhiteNoise_L_0p01to50Hz.xml
2025-05-14_2100_H1SUSPM1_M1_WhiteNoise_P_0p01to50Hz.xml
2025-05-14_2100_H1SUSPM1_M1_WhiteNoise_Y_0p01to50Hz.xml

Hence, I can confirm that the suspension and the electronics chain is healthy.