Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.04.2015 beginning time = 1277 min.(UT), 21:17 UT Xbegin = 0.052 nT time of max = 1291 min.(UT), 21:30 UT Xmax = 10.708 nT Y at Xmax = 0.888 nT endtime = 1326 min.(UT), 22: 6 UT Xend = -1.112 nT amplitude = 10.656 nT base duration time = 49 min. 2sigma = 6.152 nT duration at 2sigma = 18 min. flagbegin = 0 flagend = 0