Delta χ ² from the best fit of the depth of a model as a function of the mid-occultation time from zero (phase 0.5). Plot for Kepler-5b is on top and Kepler-6b is on the bottom. The shape and duration of the occultation model are set by the transiting parameters. The vertical dashed lines show the transit durations and around zeros which are highlighted with vertical dotted lines. Mid-occultations are expected at phase 0.5 for non-eccentric orbits. The horizontal dotted lines indicate the limits of 1σ, 2σ, and 3σ from the best fit. The maximum occultation depth is centered near phase 0.5 which confirms the detection of the occultations event.