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 = 1351 min.(UT), 22:31 UT Xbegin = -1.776 nT time of max = 1380 min.(UT), 23: 0 UT Xmax = 6.044 nT Y at Xmax = 0.930 nT endtime = 1411 min.(UT), 23:31 UT Xend = -4.824 nT amplitude = 7.820 nT base duration time = 60 min. 2sigma = 6.754 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0