Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 21.09.2007
 
 beginning time = 1292 min.(UT), 21:32 UT
 Xbegin =         -3.270 nT
 time of max =    1307 min.(UT), 21:47 UT
 Xmax =           13.778 nT
 Y at Xmax =       6.756 nT
 endtime =        1359 min.(UT), 22:39 UT
 Xend =           -6.174 nT
 amplitude =      17.048 nT
 base duration time = 67 min.
 2sigma =          5.716 nT
 duration at 2sigma = 26 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0