{"coeffs": [-1.8460890031971925e-06, 5.7988468441269696e-05, 0.3850659813655012, 0.15248264171819914], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.7290035356619184e-07, 1.0163365752895088e-06, 0.0050896825718696305, 0.003861327103354084], "covariance": [[7.447460297655252e-14, -2.0006285540255353e-13, -7.280336778786698e-10, -9.226985989315194e-10], [-2.0006285540255358e-13, 1.0329400342712074e-12, 4.951493971500831e-09, 3.6437044089482003e-09], [-7.280336778786691e-10, 4.951493971500829e-09, 2.5904868682393455e-05, 1.6207651144347957e-05], [-9.226985989315193e-10, 3.643704408948199e-09, 1.620765114434796e-05, 1.490984699909684e-05]]}