Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 15.08.2013 beginning time = 1384 min.(UT), 23: 4 UT Xbegin = -1.580 nT time of max = 1392 min.(UT), 23:12 UT Xmax = 4.888 nT Y at Xmax = 5.556 nT endtime = 1430 min.(UT), 23:50 UT Xend = -13.886 nT amplitude = 6.468 nT base duration time = 46 min. 2sigma = 8.155 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0