Radial velocities for J160156 (crosses indicate primary component, squares secondary) with preliminary fits (solid curves) used to obtain correct phasing of observations. The primary and secondary curve fits were determined consecutively, with the second fit deriving some parameters from the first, and then refitted in the other order; this has resulted in the visibly double fit curve for the primary component. Also shown are a light curve obtained from the spectra themselves (grey diamonds, fitted with dotted grey curve) and the predictions for time of minimum light from SuperWASP ephemerides (the solid vertical line indicates a linear ephemeris, the dotted vertical line a quadratic one).