P    #regions in PPM
# 2023-12-13 08:42:27 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.6568  4.6274  0.000  10000.000  # for region 1
  4.1176  4.1028  0.000  10000.000  # for region 2
  0.1062  -0.0671  0.000  10000.000  # for region 3
