#x (kpc)   v (km/s)  v_err (km/s)
 -5.73  -71.33   11.79
 -4.15   -4.22   15.78
 -3.32  -76.63    8.59
 -2.51  -53.09   11.91
 -1.96  -21.91   10.33
 -1.42  -27.01    8.87
 -0.87  -33.33    9.76
 -0.33  -22.59    8.12
  0.22  -13.42    8.12
  0.76   -1.77    8.61
  1.31   43.68    8.48
  1.85   19.15   10.65
  2.40   43.07    9.58
  2.94   38.41   10.29
  3.49   53.36   13.62
  4.03   78.87    9.94
  4.58   89.60    8.79
  5.12  101.46    8.95
  6.20   70.41    8.12