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 = 1378 min.(UT), 22:58 UT
 Xbegin =         -8.844 nT
 time of max =    1405 min.(UT), 23:25 UT
 Xmax =            9.994 nT
 Y at Xmax =      -0.450 nT
 endtime =        1432 min.(UT), 23:52 UT
 Xend =            0.062 nT
 amplitude =      18.838 nT
 base duration time = 54 min.
 2sigma =          4.776 nT
 duration at 2sigma = 28 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0