#x (kpc)   v (km/s)  v_err (km/s)
 -5.85  106.43    8.55
 -4.17  123.26   11.64
 -3.28   88.04    7.78
 -2.68   68.67    7.78
 -2.07   53.90    7.78
 -1.46   46.67    7.78
 -0.85   38.86    7.78
 -0.24   18.78    7.78
  0.37   -1.83    7.78
  0.98  -19.21    7.78
  1.58  -38.41    7.78
  2.19  -46.55    7.78
  2.80  -72.94    7.78
  3.41  -63.86    7.78
  4.02  -86.25    8.09
  4.63 -104.38    7.78
  5.24  -81.93   14.10
  6.43  -88.50   14.20