Time series of plasma and other relevant parameters characterising Alfvénicity in the slow wind stream observed by Solar Orbiter at a heliocentric distance of 0.64 AU: solar wind speed, V_sw [km s⁻¹] (a); proton number density, n_p [cm⁻³] (black) and magnetic field magnitude, B (red) (b); proton temperature, T_p [K] (c); the normalised cross-helicity, σ_C (d); the Elsässer ratio, r_E (e); the normalised residual energy, σ_R (f); and the Alfvén ratio, r_A (gs). The derived quantities are computed at 30 min scale.