Error analysis for the trial curves shown in Fig. 8. For each curve-shifting technique, the estimates of the time delay uncertainties are obtained by analyzing delay measurement errors on 1000 synthetic curves with randomly chosen true time delays. In each panel, the delay measurement errors (vertical axis) are represented against the true delays of these synthetic curves (horizontal axis). Instead of showing a scatter plot, the averaged measurement error (i.e., the bias σ_sys) in bins of true delay is shown by the shaded rods, while the error bars represent the standard deviation σ_ran. The bin intervals are indicated by the light vertical lines. For increased clarity, the results from the three techniques are drawn side by side within each bin.