Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 28.09.2020 beginning time = 1255 min.(UT), 20:55 UT Xbegin = -1.146 nT time of max = 1292 min.(UT), 21:32 UT Xmax = 8.336 nT Y at Xmax = -3.604 nT endtime = 1318 min.(UT), 21:58 UT Xend = -15.618 nT amplitude = 9.482 nT base duration time = 63 min. 2sigma = 9.825 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0