Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 23.05.2017 beginning time = 1262 min.(UT), 21: 2 UT Xbegin = -5.236 nT time of max = 1305 min.(UT), 21:45 UT Xmax = 7.886 nT Y at Xmax = 2.710 nT endtime = 1363 min.(UT), 22:43 UT Xend = -5.566 nT amplitude = 13.122 nT base duration time =101 min. 2sigma = 4.981 nT duration at 2sigma = 31 min. flagbegin = 0 flagend = 0 flagxcheck = 0