{"coeffs": [-1.8571436729866612e-07, 5.60606014599971e-06, 0.5105623568398586, 0.0018030563492829662], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.0113405531721575e-06, 2.6750764289959304e-06, 12992.59786415786, 6648.532807082709], "covariance": [[1.0228097144905655e-12, -1.4548804421665957e-14, -0.00012243952030000828, -6.265582949359109e-05], [-1.454880437771593e-14, 7.156033900969618e-12, 0.02005804784265862, 0.010264042501228383], [-0.00012243951993974085, 0.020058047842484987, 168807599.2597194, 86381713.14904745], [-6.265582942400852e-05, 0.010264042501162297, 86381713.14904745, 44202988.48685508]]}