PSP in situ observations from its third inbound traverse from 2019 August 22 to 2019August 30. The panels from top to bottom show the magnetic field magnitude (|B|) and three components in an RTN coordinate system; the solar wind velocity vector components; the proton number density (N_p) and proton temperature (T_p); the proton plasma beta (β_p); the spectrograms of the normalized magnetic helicity (σ_m); the normalized cross helicity (σ_c); and the normalized residual energy (σ_r). The bottom panel shows the radial distance of PSP.