Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.08.2010 beginning time = 1137 min.(UT), 18:57 UT Xbegin = -2.146 nT time of max = 1160 min.(UT), 19:20 UT Xmax = 5.016 nT Y at Xmax = -1.876 nT endtime = 1186 min.(UT), 19:46 UT Xend = -4.382 nT amplitude = 7.162 nT base duration time = 49 min. 2sigma = 2.747 nT duration at 2sigma = 18 min. flagbegin = 0 flagend = 0 flagxcheck = 0