Quadruple-Keplerian orbit fit to the velocities for υ And. The velocities and fits for each of the four planets are shown separately for clarity by subtracting the effects of the other three planets. The panels contain inner planet b (top), second planet d (second panel), third planet c (third panel) and outer planet e (fourth panel). This figure also shows the residuals after subtracting the four planets (bottom). For a comparison with a 3-planet fit model see Fig. 1. The data taken at the Lick observatory and with ELODIE have a mean velocity uncertainty of  ~7.44 m s^-1.