P    #regions in PPM
# 2023-12-13 15:46:36 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.6602  4.6024  0.000  10000.000  # for region 1
  4.1158  4.1046  0.000  10000.000  # for region 2
  0.0407  -0.0188  0.000  10000.000  # for region 3
