Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 21.08.2009
 
 beginning time = 1355 min.(UT), 22:35 UT
 Xbegin =         -5.392 nT
 time of max =    1383 min.(UT), 23: 3 UT
 Xmax =            6.294 nT
 Y at Xmax =      -0.964 nT
 endtime =        1407 min.(UT), 23:27 UT
 Xend =           -0.752 nT
 amplitude =      11.686 nT
 base duration time = 52 min.
 2sigma =          4.161 nT
 duration at 2sigma = 14 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0