Example (full) synthetic light curve of case 7. The top panel shows the final eclipse model of the eclipses in red and the full model of the light curve including sinusoids in grey. The bottom panel shows the residuals of subtracting the eclipse model (blue) and those of subtracting the full model (orange). The model of sinusoids is also plotted separately in red here. The slight overestimation of the primary eclipse width can be identified by sharp residual peaks here and leads to an underestimation of the radial part of eccentricity of about 0.2 for this case.