Effective forcing frequency, tidal quality factor, and heating along constant angular momentum migration tracks. The calculation uses the full eccentric forcing spectrum for fixed values of n_fτ_M. Panel (a) shows that the dissipation-weighted forcing frequency ω_eff can differ substantially from both n and n_f. Panel (b) shows the corresponding representative quality factor Q_eff, which varies as the eccentric spectrum moves relative to the Maxwell peak. Panel (c) shows the dimensionless tidal heating rate. Heating peaks at intermediate eccentricity because the eccentric forcing weakens at low e, while the large semimajor axis along a constant angular momentum track suppresses the tidal amplitude as e → 1. The dashed curve shows the weak-friction Hut limit for n_fτ_M = 0.1, and the dotted curve shows the leading e² scaling.