Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 31.05.2011
 
 beginning time = 1241 min.(UT), 20:41 UT
 Xbegin =         -5.576 nT
 time of max =    1271 min.(UT), 21:11 UT
 Xmax =            7.058 nT
 Y at Xmax =       3.026 nT
 endtime =        1317 min.(UT), 21:57 UT
 Xend =           -3.196 nT
 amplitude =      12.634 nT
 base duration time = 76 min.
 2sigma =          6.397 nT
 duration at 2sigma =  9 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0