[Jeff K, Aaron V]

I have produced new GDS filters for LHO that include new paramters (pcal correction factors and EPICS) necessary to compute SRC detuning parameters. It will also be possible to subtract the calibration lines from the strain, producing the additional channel GDS-CALIB_STRAIN_CLEAN, if we desire. The filters can be found in the calibration SVN at this location:
ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/GDSFilters/H1GDS_1175954418.npz

For information on GDS calculations of SRC detuning parameters, see:
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=35041  (note that we now compute Q-inverse instead of Q)
https://alog.ligo-la.caltech.edu/EVNT/index.php?callRep=11785

The filters were produced using this Matlab script in SVN revision 4537:
ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/Scripts/TDfilters/H1_run_td_filters_1175954418.m

The parameters files used (all in revision 4537) were:
ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/params/2017-01-24/modelparams_H1_2017-01-24.conf
ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/params/2017-01-24/H1_TDparams_1175954418.conf
ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/Scripts/CAL_EPICS/callineParams_20170411.m

ASD plots comparing GDS and the front-end CALCS model are attached. These agree with those on the summary pages from the same day (4/10), as expected. Also, time domain vs. frequency domain comparison plots of the filters are attached. Lastly, a time series plot of the kappas from GDS and CALCS is attached, as well as histograms. These show the expected output.