Overview of the intervals for magnetic spectrum analysis. The KH region is marked in the middle (see top) together with the intervals before (top left) and after (top right). The KH vortices V1 to V6, marked between the compressed current sheets, are shaded in colors. (a) Total magnetic field. (b) Magnetic field in the RTN system. (c–e) Velocity field V_R, V_T, and V_N components, respectively. (f) Ion number density. (g) Ion temperature. (h) Magnetic spectrum.