P    #regions in PPM
# 2016-11-02 11:00:16 +0100  ceisam@P15q
# low field   high field   mi   maxi
  3.875282021847122  3.8418267194132087  1.160  9.213  # for region 1
  3.8418167194132087  3.803899376654774  1.328  8.560  # for region 2
  3.803889376654774  3.692338368541731  8.223  8.328  # for region 3