Normalised pulse profiles for the synthetic data simulated using full Compton model. For illustration the data are re-binned to 3 energy bins. The green solid-line shows the best-fit solution. The contours for posterior density credible regions are not shown as they are very precise and would overlap the line of the best-fit solution. The synthetic data converted to the physical units using the best-fit model are shown with blue circles, with the error bars shown according to the Poisson noise. The assumed calibration error of 1% is not shown in the error bars.