Fitted parameters:
x_caustic_in 0.23742 +0.52941 -0.08743
x_caustic_out 0.69196 +0.04097 -0.38811
t_caustic_in 2452835.23844 +0.02525 -0.02907
t_caustic_out 2452842.07232 +0.00588 -0.00384
rho 0.00079 +0.00020 -0.00005

Smallest chi2 model:
0.14873474431136965 0.735914628389552 2452835.262249646 2452842.079264407 0.0009667058605395652
1645.8911643006056
 t_0 = 2452848.01467
 u_0 = 0.13443
 t_E = 61.465
 alpha = 224.40 deg

chi2:  1654.40998416322
