Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 08.04.2008 beginning time = 1210 min.(UT), 20:10 UT Xbegin = -7.258 nT time of max = 1263 min.(UT), 21: 3 UT Xmax = 7.824 nT Y at Xmax = -7.000 nT endtime = 1290 min.(UT), 21:30 UT Xend = -4.400 nT amplitude = 15.082 nT base duration time = 80 min. 2sigma = 4.546 nT duration at 2sigma = 22 min. flagbegin = 0 flagend = 0 flagxcheck = 0