Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 31.01.2009
 
 beginning time = 1330 min.(UT), 22:10 UT
 Xbegin =         -4.240 nT
 time of max =    1373 min.(UT), 22:53 UT
 Xmax =            5.322 nT
 Y at Xmax =      -1.926 nT
 endtime =        1424 min.(UT), 23:44 UT
 Xend =           -3.326 nT
 amplitude =       9.562 nT
 base duration time = 94 min.
 2sigma =          4.086 nT
 duration at 2sigma = 26 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0