Parameter correlation plots for selected parameters from my fit using ellc_emcee to the Kepler K2 light curve of HD 23642. The parameter values from the analysis of David et al. (2016) are indicated by lines/points in each panel. The contours in each panel show the 0.5-, 1-, 1.5- and 2-sigma confidence regions for each joint parameter distributions. Points outside the 2-sigma confidence region are individual steps from the emcee MCMC chain.