Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 12.08.2017 beginning time = 1176 min.(UT), 19:36 UT Xbegin = -4.848 nT time of max = 1206 min.(UT), 20: 6 UT Xmax = 9.576 nT Y at Xmax = -5.174 nT endtime = 1261 min.(UT), 21: 1 UT Xend = -5.122 nT amplitude = 14.424 nT base duration time = 85 min. 2sigma = 5.379 nT duration at 2sigma = 22 min. flagbegin = 0 flagend = 0 flagxcheck = 0