Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 31.08.2014 beginning time = 1207 min.(UT), 20: 7 UT Xbegin = -9.482 nT time of max = 1230 min.(UT), 20:30 UT Xmax = 13.286 nT Y at Xmax = 6.480 nT endtime = 1248 min.(UT), 20:48 UT Xend = -0.026 nT amplitude = 22.768 nT base duration time = 41 min. 2sigma = 7.751 nT duration at 2sigma = 14 min. flagbegin = 0 flagend = 0 flagxcheck = 0