Top main panel shows the RV measurement time series from HIRES (green triangles), HARPS (blue circles), and FEROS (red stars) and the best three-planet model for HD 33142 (gray line; Table 3). Top small panel shows the data residuals after applying the best three-planet Keplerian model. The data uncertainties include the RV jitter. The bottom panels show phase-folded representation of the planetary signals. In each case, the orbits of the other two planets were subtracted.