Comparison of the density structures, the position of the HCS, and the squashing factor. The top left panel shows the WL map obtained on March 20th and the selected SMB with our technique. The two right panels show the density at 0.1 au obtained with Multi-VP and WP-AW, with the actual HCS in red for CR 2202. The projected trajectory of Earth is plotted in blue. The bottom left panel is the logarithm of the squashing factor of the WP-AW simulation.