J. Kissel

Since it's been a while since we've gather a complete set of calibration measurements, I spent a bit of extra time gathering all measurements for both sensing and each stage of the ETMX actuator. The full suite took XXX hours (where the longest template is the PUM stage excitation at 22 minutes; the rest are each 10-15 minutes).

The data lives here:
Sensing 
    /ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O3/H1/Measurements/FullIFOSensingTFs/
        2019-06-06_H1_DARM_OLGTF_LF_SS_5to1100Hz_15min.xml
        2019-06-06_H1_PCAL2DARMTF_LF_SS_5t1100Hz_10min.xml

Actuation
    /ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O3/H1/Measurements/FullIFOActuationTFs/
        2019-06-06_H1SUSETMX_L1_iEXC2DARM_10min.xml
        2019-06-06_H1SUSETMX_L1_PCAL2DARM_8min.xml
   
        2019-06-06_H1SUSETMX_L2_iEXC2DARM_22min.xml
        2019-06-06_H1SUSETMX_L2_PCAL2DARM_8min.xml

        2019-06-06_H1SUSETMX_L3_iEXC2DARM_8min.xml
        2019-06-06_H1SUSETMX_L3_PCAL2DARM_8min.xml   

Things even went so well that I grabbed some bonus data -- a repeat of the sensing function measurement set, but during which I've gathered all ASC Arm DOF error signals and the ETMX optical lever as additional response channels. This was motivated by the suspicion that there are L to A to L cross-couplings that are fooling us into thinking that the SRC is acausally detuned. That data is here:
    /ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O3/H1/Measurements/FullIFOSensingTFs/
        2019-06-07_H1_DARM_OLGTF_LF_SS_wASC_5to100Hz_10min.xml
        2019-06-07_H1_PCAL2DARMTF_LF_SS_wASC_5to100Hz_8min.xml

And I attach screenshots of the transfer functions and coherence between these new angular channels and each respective DARM (L) and PCAL (L) excitation [First and second attachment, respectively]. 
Angle is definitely coherent, especially in DHARD P -- and strangely the coherence increases with frequency for the PCAL excitation, yet decreases with frequency for the DARM excitation. Fascinating clues...
(Many sincere apologies, but I do not have a calibration for any of the ASC error signals. The optical lever calibration is at least known -- and displayed in urads in the plot.)

All data has been exported and committed to the repo in the above locations with corresponding names.    
Data will be processed further in due time.