P    #regions in PPM
# 2023-12-12 10:59:45 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.6586  4.6369  50.000  10000.000  # for region 1
  4.1221  4.1016  50.000  10000.000  # for region 2
  0.0704  -0.0451  0.000  10000.000  # for region 3
