#x (kpc)   v (km/s)  v_err (km/s)
 -4.33   36.54    9.26
 -3.23   19.58   10.79
 -2.48   16.89    9.36
 -1.73   43.78    8.55
 -0.97   14.77    8.50
 -0.22    3.32    8.09
  0.54  -15.49    8.18
  1.29  -17.11   12.15
  2.04   -5.72   11.34
  2.80  -21.37   14.09