Overview of the Solar Orbiter/MAG observations during the period from June 4, 2020, to June 11, 2020. From top to bottom: time profiles of the magnetic field magnitude B and components B_R, B_T, and B_N (blue, green and red lines, respectively), of the θ_BR angle between the magnetic field vector and the radial direction, and of the elevation (θ) and azimuthal (ϕ) angles (a), and the spectrogram of the normalized magnetic helicity σ_m in the timescale range between 2 and 128 h (b). Contour lines are drawn at a level of σ_m = 0.8. The vertical dashed lines in each panel delimit the two helical structures observed by Solar Orbiter upstream and downstream of the HCS crossing (the horizontal dot-dashed line in the second panel indicating B_R = 0 guides the reader’s eye to see when the magnetic field radial component changes direction). The cross-hatched area denotes the COI, where the reliability of the results may be affected by edge effects.