Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 07.04.2008 beginning time = 1248 min.(UT), 20:48 UT Xbegin = -8.052 nT time of max = 1302 min.(UT), 21:42 UT Xmax = 7.752 nT Y at Xmax = -6.588 nT endtime = 1320 min.(UT), 22: 0 UT Xend = 1.616 nT amplitude = 15.804 nT base duration time = 72 min. 2sigma = 7.306 nT duration at 2sigma = 6 min. flagbegin = 0 flagend = 0 flagxcheck = 0