P    #regions in PPM
# 2023-11-02 12:09:15 +0100  nim51sx@woc2055
# low field   high field   mi   maxi
  11.010575426346996  10.757250765757254  0.364  0.569  # for region 1
  10.382814466211872  9.93870185780618  0.014  0.076  # for region 2
  9.717171558192412  9.28540043783317  0.071  0.661  # for region 3
