Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.04.2017 beginning time = 1356 min.(UT), 22:36 UT Xbegin = -7.072 nT time of max = 1383 min.(UT), 23: 3 UT Xmax = 7.984 nT Y at Xmax = -1.908 nT endtime = 1414 min.(UT), 23:34 UT Xend = -7.280 nT amplitude = 15.056 nT base duration time = 58 min. 2sigma = 6.644 nT duration at 2sigma = 17 min. flagbegin = 0 flagend = 0 flagxcheck = 0