Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 05.09.2017 beginning time = 1109 min.(UT), 18:29 UT Xbegin = -6.564 nT time of max = 1163 min.(UT), 19:23 UT Xmax = 10.260 nT Y at Xmax = 1.692 nT endtime = 1214 min.(UT), 20:14 UT Xend = -4.212 nT amplitude = 16.824 nT base duration time =105 min. 2sigma = 6.238 nT duration at 2sigma = 18 min. flagbegin = 0 flagend = 0 flagxcheck = 0