P    #regions in PPM
# 2018-09-11 14:03:11 -0500  bmrbmb@tonga.nmrfam.wisc.edu
# low field   high field   mi   maxi
  1000.0  76.58519650984371  0.000  1000000.000  # for region 1
  76.58519650984371  9.683185765612423  -27.583  19.074  # for region 2
  9.683185765612423  0.1  0.000  1000000.000  # for region 3
