Cross-correlation functions of SVD detrended spectra. Left panel: As a function of the orbital phase (0 is the time of periastron) in the RG rest frame, with the MS companion clearly detected. Right upper panels: CCF maps from the K-focusing method. A 26.6-σ CCF signal marks the MS star’s orbit being aligned in the MS’s rest-frame. The best fitting Saltite model is used to measure the MS star semi-amplitude and rest-velocity. White lines (a & b) mark sections shown in the Right lower panels: Gray data points are CCF data, error bars represent the overall jitter from the two-dimensional fit.