Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 28.05.2019 beginning time = 1386 min.(UT), 23: 6 UT Xbegin = -6.110 nT time of max = 1395 min.(UT), 23:15 UT Xmax = 4.500 nT Y at Xmax = -0.142 nT endtime = 1427 min.(UT), 23:47 UT Xend = -5.866 nT amplitude = 10.610 nT base duration time = 41 min. 2sigma = 5.069 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0