Example of two current sheets observed at 0.1 AU (left column), and at 0.97 AU (right column), centered at 02:57:24.99 UT on 28 September and at 02:29:42.04 UT on 25 September, respectively. Top row: components of the magnetic field fluctuations, defined in Eq. (11), in the minimum variance reference frame. Bottom row: components of the magnetic field fluctuations in the local magnetic field reference frame, where b₀ is along the z-direction. Magnetic fluctuations are normalized to the local mean magnetic field strength, b₀. The vertical dashed black lines mark the extension of the events, Δt′.