P    #regions in PPM
# 2023-12-13 12:23:06 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  0.0888  0.05451  0.000  10000.000  # for region 1
  0.0545  -0.047  0.000  10000.000  # for region 2
