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 = 1390 min.(UT), 23:10 UT Xbegin = -5.710 nT time of max = 1411 min.(UT), 23:31 UT Xmax = 18.856 nT Y at Xmax = 0.048 nT endtime = 1462 min.(UT), 24:22 UT Xend = -10.906 nT amplitude = 24.566 nT base duration time = 72 min. 2sigma = 7.751 nT duration at 2sigma = 27 min. flagbegin = 0 flagend = 0 flagxcheck = 0