P    #regions in PPM
# 2023-12-13 12:37:26 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  0.0717  0.06311  0.000  10000.000  # for region 1
  0.0631  -0.0281  0.000  10000.000  # for region 2
