ISN densities and velocities and the impact of the ISN velocities on relative velocity measures for PUIs over ecliptic longitude. All panels share a common x-axis and are a function of the ecliptic longitude. Panel a shows the fraction of primary ISN density, and panel b shows the radial and tangential components of the ISN velocity. Panel c shows spectra of ϖ_{SW, inj, p}, panel d shows spectra of ϖ_{SW, inj, s} and panel e shows spectra of ϖ_SW. All spectra are normalised to the respective maximum of the ecliptic longitude slices. The different symbols at the x-axes correspond to different ecliptic longitudes that correspond in heliospheric position to the markers in Fig. B.1: Focusing cone (yellow triangle), crescent (light pink square), and intermediate (magenta circle) position.