Left: frequency spectrum of magnetic fluctuations P_sc(ω, θ_VB) for angles θ_VB = 30°,  40°,  50°, and 60° corresponding to interval E4, as well as the full spectrum irrespective of the angle. The spectral break between the 1∕f and f^−3∕2 ranges for the unconditioned spectrum (black line) is found approximately (by inspection) at f_b ≈ 2 × 10⁻³ Hz, indicated by the vertical dotted line. Right: spatial energy spectrum of magnetic fluctuations E(k_⊥) reconstructed from the frequency spectra P_sc(ω, θ_VB) for each sampling angle as well as by using the standard TH (black line).