Parameters of the midlatitude positive bays (MPB)
 Calculated at Space Research and Technology Institute, Sofia, Bulgaria
 
 Station: PAG
 Date of observation: 25.12.2009
 
 beginning time = 1354 min.(UT), 22:34 UT
 Xbegin =         -5.790 nT
 time of max =    1396 min.(UT), 23:16 UT
 Xmax =            6.508 nT
 Y at Xmax =      -1.318 nT
 endtime =        1443 min.(UT), 24: 3 UT
 Xend =           -2.462 nT
 amplitude =      12.298 nT
 base duration time = 89 min.
 2sigma =          3.057 nT
 duration at 2sigma = 30 min.
 flagbegin = 0
 flagend =   0
 flagxcheck = 0