P    #regions in PPM
# 2026-07-14 21:50:15 -0400  Isaacs@CHEMCZC1249Y88
# low field   high field   mi   maxi
  9.189870544144952  6.378623225788374  0.000  0.008  # for region 1
  5.3704517736880835  4.905141872718719  0.014  0.015  # for region 2
  2.190834117064092  1.2214384900445823  0.002  0.005  # for region 3
