Nuclear power as a function of time. All the trajectories have initial entropy s₀ ≃ 11 k_B baryon⁻¹, expansion timescale τ₀ ≃ 8.6 ms, and electron fraction Y_e ∈ [0.02, 0.1, 0.2, 0.3, 0.4, 0.46, 0.48, 0.54] indicated by the color map. The vertical dashed lines mark the transition between the early- and late-times fits. Top panel: SkyNet calculations (solid lines) and estimate from the updated (dashed lines) and old (dotted lines) nuclear power fits, respectively from this work and Wu et al. (2022). Bottom panel: Relative differences between the results from SkyNet and from the new (solid lines) and previous (dashed lines) version of the fits. The dashed horizontal lines mark differences of one order of magnitude.