Event overview. The event contains two specific intervals which we analyze in detail: interval I is dominated by turbulence and interval II with abundant coherent waves. Panels from top to bottom show: (a) magnetic field vector in RTN coordinates, (b) density n_e, (c–e) power spectrum of density, B_|| and B_⊥ fluctuations, (f) coherence, and (g) phase between n_e and B_||, (h) coherence and (i) phase between the two B_⊥ components The black lines in panels c-i show the proton cyclotron frequency, f_cp.