Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 16.04.2008 beginning time = 1163 min.(UT), 19:23 UT Xbegin = -10.330 nT time of max = 1189 min.(UT), 19:49 UT Xmax = 12.388 nT Y at Xmax = -5.742 nT endtime = 1248 min.(UT), 20:48 UT Xend = -9.072 nT amplitude = 22.718 nT base duration time = 85 min. 2sigma = 6.754 nT duration at 2sigma = 21 min. flagbegin = 0 flagend = 0 flagxcheck = 0