P    #regions in PPM
# 2019-10-21 14:59:50 -0500  bmrbmb@tonga.nmrfam.wisc.edu
# low field   high field   mi   maxi
  1000.0  158.29413236855297  0.000  1000000.000  # for region 1
  158.29413236855297  -0.9652081241984937  1.787  18.316  # for region 2
