#x (kpc)   v (km/s)  v_err (km/s)
 -6.66   -5.02   -4.05
 -2.79   -1.55    0.02
  1.58    2.83    3.79
  4.41    5.04    5.67
  6.30    7.23    8.48
****** -128.60 -118.77
-83.32  -75.16    6.86
100.60  103.12  131.98
120.70  142.79  149.89
158.74  159.85  169.61
 10.35   12.16   10.35
 10.35   11.53   10.35
 10.35   10.35   11.76
 10.35   10.35   10.35
 10.35   10.35   10.35