Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 20.03.2021 beginning time = 1426 min.(UT), 23:46 UT Xbegin = 0.150 nT time of max = 1454 min.(UT), 24:14 UT Xmax = 13.676 nT Y at Xmax = 2.776 nT endtime = 1500 min.(UT), 25: 0 UT Xend = -11.486 nT amplitude = 13.526 nT base duration time = 74 min. 2sigma = 11.711 nT duration at 2sigma = 11 min. flagbegin = 0 flagend = 2 flagxcheck = 1