# type  t   guess  shift  shift_err
   0       0.0    0.00000000    0.00000000    0.00000000
   1   -7806.5   -0.00081278   -8.27882108    0.21610094
   1   -6435.5   -0.00081278   -6.82369958    0.17808099
   1   -5053.5   -0.00081278   -5.35746998    0.13978520
   1   -2653.5   -0.00081278   -2.81254734    0.07334984
   1    -979.0   -0.00081278   -1.03794903    0.02704962
   1    1113.0   -0.00081278    1.17793460    0.03073395
   1    2783.0   -0.00081278    2.94589436    0.07681219
   1    4893.0   -0.00081278    5.17847888    0.13496823
   1    6561.0   -0.00081278    6.94244879    0.18089241