Wind observation of the ICME and its driven shock during the period from 2020 April 19 to 2020 April 23. The panels from top to bottom show the magnetic field vector and magnitude, the flow speed, the proton number density and temperature, the proton plasma beta, and spectrograms of the normalized magnetic helicity σ_m, the normalized cross helicity σ_c, and the normalized residual energy σ_r.