Representation of the residual cube and flux map construction. Example pixels, visualized in blue and green, have been selected from possible trajectories. For each selected pixel, a low-rank matrix is obtained, which is used to construct a residual cube and calculate a flux value. After de-rotating the residual cube, an array is produced. Combining these arrays from all possible trajectories forms the de-rotated residual cube. Similarly, flux values from all points along the possible trajectories are combined to form the flux map.