Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.04.2018 beginning time = 1322 min.(UT), 22: 2 UT Xbegin = -3.560 nT time of max = 1349 min.(UT), 22:29 UT Xmax = 5.248 nT Y at Xmax = -2.110 nT endtime = 1413 min.(UT), 23:33 UT Xend = -4.154 nT amplitude = 8.808 nT base duration time = 91 min. 2sigma = 4.189 nT duration at 2sigma = 10 min. flagbegin = 0 flagend = 0 flagxcheck = 0