Evidence of reconnection at the trailing edge of event 3. Left panel: follows the same representation as in Fig. 2 but for event 3 and shows a correlation and anti-correlation of B_L and v_L. Right panels: whistler waves detected right after PSP crossed the current sheet. First panel: SCM waveforms in the RTN coordinates system. Second panel: cross-spectral measurement (trace of the spectral matrix). Third panel: BPF measurements (one component in the SCM sensor frame). For the last two panels, the white lines represent the lower hybrid and electron cyclotron frequencies, respectively.