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Fig. 2


2417 data points fitted by a six-spot model (red line). In the upper part the residuals (arbitrary offset) are shown. Jumps and linear trends are accounted for automatically by using a likelihood function that integrates over all possible magnitude offsets and trends. This was made individually for each part of the light curve. Without the systematics the contingent part of the residuals is ± 0.123 mmag.

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