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 = 1263 min.(UT), 21: 3 UT Xbegin = -2.112 nT time of max = 1278 min.(UT), 21:18 UT Xmax = 8.506 nT Y at Xmax = -1.850 nT endtime = 1315 min.(UT), 21:55 UT Xend = -4.356 nT amplitude = 10.618 nT base duration time = 52 min. 2sigma = 7.097 nT duration at 2sigma = 8 min. flagbegin = 0 flagend = 0 flagxcheck = 0