P    #regions in PPM
# 2023-05-08 19:11:15 +0100  sgjburro@HCC8-021
# low field   high field   mi   maxi
  150.42311407653784  113.17162956767787  0.073  0.851  # for region 1
  88.00348288523953  71.44468800831285  14.793  19.958  # for region 2
  59.442770111925405  43.059250434433594  0.109  0.633  # for region 3
  35.0775357197581  7.771669590605088  0.057  0.649  # for region 4
