Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 21.04.2012
 
 beginning time = 1169 min.(UT), 19:29 UT
 Xbegin =         -7.902 nT
 time of max =    1193 min.(UT), 19:53 UT
 Xmax =            6.680 nT
 Y at Xmax =       1.172 nT
 endtime =        1243 min.(UT), 20:43 UT
 Xend =           -5.802 nT
 amplitude =      14.582 nT
 base duration time = 74 min.
 2sigma =          4.776 nT
 duration at 2sigma =  4 min.
 flagbegin = 0
 flagend =   4
 flagxcheck = 0