Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 24.09.2017 beginning time = 1283 min.(UT), 21:23 UT Xbegin = 1.328 nT time of max = 1295 min.(UT), 21:35 UT Xmax = 4.668 nT Y at Xmax = -3.838 nT endtime = 1334 min.(UT), 22:14 UT Xend = -4.384 nT amplitude = 3.340 nT base duration time = 51 min. 2sigma = 2.756 nT duration at 2sigma = 4 min. flagbegin = 0 flagend = 0 flagxcheck = 0