Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 28.03.2015 beginning time = 1361 min.(UT), 22:41 UT Xbegin = -5.122 nT time of max = 1421 min.(UT), 23:40 UT Xmax = 6.590 nT Y at Xmax = -5.088 nT endtime = 1450 min.(UT), 24:10 UT Xend = -5.564 nT amplitude = 11.712 nT base duration time = 89 min. 2sigma = 4.379 nT duration at 2sigma = 12 min. flagbegin = 0 flagend = 0