Comparison of the densities obtained in this study with some previous observational results and models. The electron density models such as, Newkirk (Newkirk 1961), Saito (Saito 1970), Leblanc (Leblanc et al. 1995), Hybrid (Vršnak et al. 2004), and Wang et al. (2023), Kruparova model (Kruparova et al. 2023) are shown with red, black, shades of green, magenta, yellow, and blue lines, respectively. Red points represent the radio densities obtained from the case studies, while black points represents all events. Panel (b) shows EUHFORIA densities obtained at PSP and radio source positions with all realizations of ADPAT magnetic maps in comparison with other density models and radio densities