Example of processing a spectral time series for the 141st spectral order and the second night. The color bar indicates photon counts, normalized to an appropriate value for each panel. (a) The raw spectral time series is normalized to its maximum value. (b) The spectral time series normalized to the continuum. (c) The same as in (b), but with the strongest telluric features masked and shown in gray. (d) After removal of the quasi-stationary components by SVD. (e) The same as in (d), but with the fiducial model injected at 10 times the nominal star-to-planet flux ratio. The strongest emission lines are visible as bright sloping lines, blueshifting due to the planet’s orbital acceleration.