Time series for the interaction of an electron with a single wave propagating at 65° for three different electron initial conditions: (a) initial kinetic energy of 100 eV and initial pitch angle of 0°; (b) initial energy of 1000 eV and pitch angle 0°; and (c) initial energy of 1000 eV and pitch angle 180°. Time is normalized to wave periods. For each set of initial conditions the panels are from top to bottom: (1) the resonance mismatch; (2) the relativistic kinetic energy W; and (3) the pitch angle.