Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 18.08.2017 beginning time = 1093 min.(UT), 18:13 UT Xbegin = -11.816 nT time of max = 1128 min.(UT), 18:48 UT Xmax = 11.384 nT Y at Xmax = -4.600 nT endtime = 1178 min.(UT), 19:38 UT Xend = -8.904 nT amplitude = 23.200 nT base duration time = 85 min. 2sigma = 7.124 nT duration at 2sigma = 4 min. flagbegin = 0 flagend = 0 flagxcheck = 0