P    #regions in PPM
# 2023-12-12 10:16:17 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.6587  4.6356  0.000  10000.000  # for region 1
  4.119  4.108  0.000  10000.000  # for region 2
  0.0179  -0.0119  0.000  10000.000  # for region 3
