Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 31.08.2009
 
 beginning time = 1170 min.(UT), 19:30 UT
 Xbegin =         -1.842 nT
 time of max =    1206 min.(UT), 20: 6 UT
 Xmax =            4.870 nT
 Y at Xmax =      -0.768 nT
 endtime =        1240 min.(UT), 20:40 UT
 Xend =           -1.986 nT
 amplitude =       6.712 nT
 base duration time = 70 min.
 2sigma =          2.817 nT
 duration at 2sigma = 16 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0