Orbital parameters of a circular orbit and increment in the log likelihood as a function of the number of RV points, which are added chronologically. Each color represents a different instrument, and the gray shaded regions indicate the uncertainties computed from the MCMC posterior distribution. First three panels: period, time of maximum RV, and semi-amplitude, respectively. Bottom panel: increment in log likelihood with respect to a fit to the mean value. The black dotted line indicates the orbital parameters obtained from the combined RVs.