Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 06.04.2008 beginning time = 1139 min.(UT), 18:59 UT Xbegin = -4.400 nT time of max = 1171 min.(UT), 19:31 UT Xmax = 7.696 nT Y at Xmax = -0.304 nT endtime = 1201 min.(UT), 20: 1 UT Xend = -4.306 nT amplitude = 12.096 nT base duration time = 62 min. 2sigma = 7.097 nT duration at 2sigma = 5 min. flagbegin = 0 flagend = 0 flagxcheck = 0