A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.129634015763138  7.903414568345312  88281.25  3.2262145748987927  # for region 1
  1.7037811430873417  1.381524814797617  91421.875  -1.2144549763033166  # for region 2
