Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 22.05.2021 beginning time = 1199 min.(UT), 19:59 UT Xbegin = -4.096 nT time of max = 1221 min.(UT), 20:21 UT Xmax = 8.216 nT Y at Xmax = 2.132 nT endtime = 1274 min.(UT), 21:14 UT Xend = -1.830 nT amplitude = 12.312 nT base duration time = 75 min. 2sigma = 3.189 nT duration at 2sigma = 26 min. flagbegin = 0 flagend = 0 flagxcheck = 0