{"coeffs": [-1.107735150266823e-07, 7.716488493320169e-09, -0.3023774898546257, 0.0018696016810209456], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.006418566279738e-08, 3.6781654630343424e-08, 599356.8902148473, 647069.6609434166], "covariance": [[3.6077063993349945e-15, 0.0, -6.832556660515963e-11, 1.3299448940449351e-10], [-3.7550238109622987e-32, 1.3528901173458638e-15, 5.1948986621251765e-11, -0.0], [-1.3299448940449351e-10, 0.0, 359228681848.01245, -387825659735.4218], [1.7732598587265802e-10, 4.4331496468164505e-11, -387825659735.4218, 418699146113.4282]]}