P    #regions in PPM
# 2013-03-12 08:33:11 +0100  puk06221@pcch170
# low field   high field   mi   maxi
  -11.554473170512042  -21.346399586200214  0.376  2.859  # for region 1
  -37.20932037961505  -44.259507398910536  3.837  18.093  # for region 2
