Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.08.2008 beginning time = 1359 min.(UT), 22:39 UT Xbegin = -3.940 nT time of max = 1382 min.(UT), 23: 2 UT Xmax = 5.044 nT Y at Xmax = 2.110 nT endtime = 1419 min.(UT), 23:39 UT Xend = -2.382 nT amplitude = 8.984 nT base duration time = 60 min. 2sigma = 2.369 nT duration at 2sigma = 24 min. flagbegin = 0 flagend = 0 flagxcheck = 0