J. Kissel I've measured the standard weekly collection of measurements for the sensing function in the DARM loop today. Because they're quick, and we're curious elsewhere (see LHO aLOG 54868) I also grabbed measurements with PCALX as well (like we used to do regularly until we realized the sensing function had plenty enough mysteries to solve without seeing discrepancies between X and Y end absolute references). Anyways -- here's the data files: Swept Sine measurements across the frequency band: /ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O3/H1/Measurements/FullIFOSensingTFs/ 2020-02-03_H1_DARM_OLGTF_LF_SS_5to1100Hz_15min.xml 2020-02-03_H1_PCALX2DARMTF_LF_SS_5t1100Hz_10min.xml 2020-02-03_H1_PCALY2DARMTF_LF_SS_5t1100Hz_10min.xml Broadband PCAL injections (about 3 minutes of data) with good SNR between 20-300 Hz: /ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O3/H1/Measurements/FullIFOSensingTFs 2020-02-03_H1_PCALX2DARMTF_BB_3min.xml Start time: 2020-02-03 19:05:16 UTC 2020-02-03_H1_PCALY2DARMTF_BB_3min.xml Start time: 2020-02-03 19:00:47 UTC Data analysis to come.