{"coeffs": [-1.38897260609403e-08, 0.051371359322726746, 1.23303399192954, 0.06625636665565163], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [4.177503608407617e-08, 415.53750456248093, 534.4458546140104, 0.019340046037639492], "covariance": [[1.7451536398258664e-15, -6.764653799239275e-06, -8.701356397950093e-06, -4.0247209075296184e-10], [-6.764653804728569e-06, 172671.41769801386, 222082.2955552092, 7.689223068362141], [-8.701356404587755e-06, 222082.2955551927, 285632.37151409994, 9.88984808109823], [-4.02472090927756e-10, 7.689223066689023, 9.889848078950717, 0.00037403738073801503]]}