P    #regions in PPM
# 2023-12-13 15:48:13 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.6577  4.6311  0.000  10000.000  # for region 1
  4.1191  4.1043  0.000  10000.000  # for region 2
  0.6198  -0.2277  0.000  10000.000  # for region 3
