Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.08.2013 beginning time = 1360 min.(UT), 22:40 UT Xbegin = -2.590 nT time of max = 1380 min.(UT), 23: 0 UT Xmax = 10.692 nT Y at Xmax = -2.886 nT endtime = 1461 min.(UT), 24:21 UT Xend = -8.642 nT amplitude = 13.282 nT base duration time =101 min. 2sigma = 9.926 nT duration at 2sigma = 5 min. flagbegin = 0 flagend = 0 flagxcheck = 0