Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 28.04.2012
 
 beginning time = 1385 min.(UT), 23: 5 UT
 Xbegin =         -5.562 nT
 time of max =    1426 min.(UT), 23:46 UT
 Xmax =            6.194 nT
 Y at Xmax =       1.566 nT
 endtime =        1471 min.(UT), 24:31 UT
 Xend =           -4.638 nT
 amplitude =      11.756 nT
 base duration time = 86 min.
 2sigma =          3.961 nT
 duration at 2sigma = 32 min.
 flagbegin = 4
 flagend =   0
 flagxcheck = 0