P    #regions in PPM
# 2019-08-16 15:08:12 -0500  bmrbmb@tonga.nmrfam.wisc.edu
# low field   high field   mi   maxi
  172.10660541170515  169.1631242285797  0.096  2.769  # for region 1
  169.1631242285797  50.2572898676943  0.043  2.594  # for region 2
  50.2572898676943  18.691905915615518  0.096  2.769  # for region 3
