The STELLA radial velocities compared with our newly computed orbit. Filled circles denote the cool component, star A, open circles the hot component, star B. The two top panels show the radial velocities versus HJD and versus orbital phase, the two bottom panels show the residuals versus phase for the primary and the secondary, respectively. The lines are computed from our elements in Table 2. The horizontal dashed line in the middle panel is the systemic velocity. The residuals show a phase-dependent behavior in both components, but the overall rms of 64 m s^-1 and 297 m s^-1 for the two components fit the uncertainties of the individual measurements quite well.