First fit. This can take some time...
Fitted parameters:
t_0_1: 6100.04856 +0.02384 -0.02442
u_0_1: 0.20176 +0.00752 -0.00703
t_0_2: 6140.00048 +0.00054 -0.00053
u_0_2: 0.01000 +0.00028 -0.00026
t_E: 24.97848 +0.63846 -0.64421

Smallest chi2 model:
6100.043548826305 0.2022324038184834 6140.000506813421 0.010020746352062961 24.915197094232358
chi2 =  1559.6924283831406

Second fit. This can take some time...
Fitted parameters:
t_0_1: 6100.04559 +0.02412 -0.02510
u_0_1: 0.20177 +0.00737 -0.00713
t_0_2: 6140.00051 +0.00058 -0.00052
u_0_2: 0.01001 +0.00028 -0.00027
t_E: 24.95427 +0.66243 -0.63960
flux_ratio: 0.04960 +0.00073 -0.00075

Smallest chi2 model:
6100.045603563694 0.20091734861294366 6140.000535868968 0.0099839566576509 25.026575661688916 0.04969677432173234
chi2 =  1559.7269272614674
