Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 08.04.2011
 
 beginning time = 1353 min.(UT), 22:33 UT
 Xbegin =        -17.780 nT
 time of max =    1388 min.(UT), 23: 8 UT
 Xmax =           16.872 nT
 Y at Xmax =     -10.170 nT
 endtime =        1431 min.(UT), 23:51 UT
 Xend =           -8.416 nT
 amplitude =      34.652 nT
 base duration time = 78 min.
 2sigma =          7.897 nT
 duration at 2sigma = 36 min.
 flagbegin = 2
 flagend =   0
 flagxcheck = 0