Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 14.09.2008 beginning time = 1374 min.(UT), 22:54 UT Xbegin = -9.576 nT time of max = 1435 min.(UT), 23:55 UT Xmax = 7.246 nT Y at Xmax = -5.618 nT endtime = 1470 min.(UT), 24:30 UT Xend = -4.460 nT amplitude = 16.822 nT base duration time = 96 min. 2sigma = 5.401 nT duration at 2sigma = 19 min. flagbegin = 0 flagend = 0 flagxcheck = 1