{"coeffs": [-9.991278640966548e-08, 0.7744144643412781, 2.205646392655892, 0.16410360120433923], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [6.790275904662872e-07, 2164.001614071889, 460.3827874452088, 0.021254795882960913], "covariance": [[4.610784686144519e-13, -0.0011304073139032503, -0.00024050787575969373, -1.2647283010376198e-08], [-0.001130407313373839, 4682902.985705742, 996269.088466646, 44.422092612962466], [-0.0002405078756485528, 996269.0884667283, 211952.31097582032, 9.450917567374603], [-1.2647283007306931e-08, 44.42209262146141, 9.450917569181852, 0.0004517663480263322]]}