Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 02.09.2007 beginning time = 1118 min.(UT), 18:38 UT Xbegin = -10.794 nT time of max = 1153 min.(UT), 19:13 UT Xmax = 17.970 nT Y at Xmax = 3.276 nT endtime = 1179 min.(UT), 19:39 UT Xend = -7.706 nT amplitude = 28.764 nT base duration time = 61 min. 2sigma = 8.325 nT duration at 2sigma = 20 min. flagbegin = 0 flagend = 0 flagxcheck = 0