First conjunction: Parker Solar Probe time series of relevant parameters. From top to bottom: solar wind bulk speed, V_sw, in km/s; v-b correlation coefficient computed at 30 min scale using a running window, C_vb; radial component of the magnetic field, B_R in nT; angle the magnetic field forms with the velocity field, Θ_VB in degree; magnetic compressibility, σ_B/σ_bi computed at 30 min scale; plasma beta β. The gray box identifies the connected solar wind when PSP was at 0.10 au from the Sun.