Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 05.09.2008 beginning time = 1141 min.(UT), 19: 1 UT Xbegin = -2.268 nT time of max = 1177 min.(UT), 19:37 UT Xmax = 6.930 nT Y at Xmax = 0.052 nT endtime = 1233 min.(UT), 20:33 UT Xend = -5.588 nT amplitude = 9.198 nT base duration time = 92 min. 2sigma = 4.709 nT duration at 2sigma = 22 min. flagbegin = 0 flagend = 0 flagxcheck = 0