Synthetic binary model fit to the flux calibration images of WISPIT 1 over three different epochs. The top row shows the observation; the second row shows the best-fit synthetic binary model, with the best-fit positions of the primary star and secondary star marked with crosses; the bottom row shows the residuals. The model and residuals inherit the colour scale from the corresponding observation, demonstrating the similarity in intensity between model and observation. The residual images are multiplied by a factor of ten, and show minor structures on the order of magnitude of less than ~5% of the peak flux of the observation.