A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.386134981755033  7.375888151051384  129500.0  1.9655276685817946  # for region 1
  2.572656141273905  2.1213129585942725  139468.75  0.3594384303112317  # for region 2
  -0.04080717185330984  -0.530493234093028  122593.75  -1.871490954460385  # for region 3
