Relative frequency of non-SSE blobs of different reconstruction-quality levels and WRQ (red line) as a function of the number density (panel a), the radius (panel b) and the 30-min movement in heliospheric distance (panel c) when θ_Sun is 135°. The radial movement of 1 R_⊙ in 30 min corresponds to the radial velocity about 390 km s⁻¹. The colors representing different levels of reconstruction quality are the same as those in Fig. 2.