{"coeffs": [-6.627678056415683e-07, 5.183959710960402e-05, 0.41815921267281936, 0.13095796608047652], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.7474175185519743e-07, 1.4518504612459729e-06, 0.007680645688558424, 0.004858481871337231], "covariance": [[7.548303021246288e-14, -2.5768478752625784e-13, -1.0437721707204976e-09, -1.088247653000413e-09], [-2.5768478752625754e-13, 2.1078697618201442e-12, 1.0822825838110326e-08, 6.467183522350495e-09], [-1.043772170720497e-09, 1.0822825838110326e-08, 5.89923181931711e-05, 3.16739179328584e-05], [-1.0882476530004125e-09, 6.467183522350498e-09, 3.1673917932858406e-05, 2.3604846094112527e-05]]}