Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 19.09.2012 beginning time = 1364 min.(UT), 22:44 UT Xbegin = -14.966 nT time of max = 1383 min.(UT), 23: 3 UT Xmax = 14.852 nT Y at Xmax = 23.102 nT endtime = 1413 min.(UT), 23:33 UT Xend = -13.148 nT amplitude = 29.818 nT base duration time = 49 min. 2sigma = 7.728 nT duration at 2sigma = 19 min. flagbegin = 2 flagend = 0 flagxcheck = 0