Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 15.09.2008 beginning time = 1048 min.(UT), 17:28 UT Xbegin = -4.798 nT time of max = 1081 min.(UT), 18: 1 UT Xmax = 5.950 nT Y at Xmax = 2.198 nT endtime = 1119 min.(UT), 18:39 UT Xend = -3.750 nT amplitude = 10.748 nT base duration time = 71 min. 2sigma = 6.549 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0