Distribution p for time delays between 0−50 days based on our light curves of components A_V, B_V, and B_R. The probability was computed from 10 000 bootstrap resamplings of the observed light curves. For each resampling the brightest component A was interpolated in correspondence to the dates at which B was observed. The region above the dashed line contains 95% of the statistical weight. Mean value and standard deviation of this region are Δt = 7.6 ± 2.9 days.