Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.09.2017 beginning time = 1081 min.(UT), 18: 1 UT Xbegin = -4.994 nT time of max = 1109 min.(UT), 18:29 UT Xmax = 8.872 nT Y at Xmax = -1.058 nT endtime = 1139 min.(UT), 18:59 UT Xend = -5.422 nT amplitude = 13.866 nT base duration time = 58 min. 2sigma = 5.549 nT duration at 2sigma = 14 min. flagbegin = 0 flagend = 0 flagxcheck = 0