Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 05.04.2015 beginning time = 1383 min.(UT), 23: 3 UT Xbegin = -5.756 nT time of max = 1416 min.(UT), 23:36 UT Xmax = 8.832 nT Y at Xmax = -3.906 nT endtime = 1448 min.(UT), 24: 8 UT Xend = -4.466 nT amplitude = 14.588 nT base duration time = 65 min. 2sigma = 3.358 nT duration at 2sigma = 29 min. flagbegin = 0 flagend = 0