# type  t   guess  shift  shift_err
   0       0.0    0.00000000    0.00000000    0.00000000
   1    1174.0   -0.00081278    2.34383301    0.99368426
   1    2548.0   -0.00081278    5.08605680    2.15474947
   1    3619.0   -0.00081278    7.22217115    3.05835188