Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.08.2015 beginning time = 1302 min.(UT), 21:42 UT Xbegin = -4.008 nT time of max = 1332 min.(UT), 22:12 UT Xmax = 5.320 nT Y at Xmax = -1.814 nT endtime = 1363 min.(UT), 22:43 UT Xend = -2.188 nT amplitude = 9.328 nT base duration time = 61 min. 2sigma = 4.318 nT duration at 2sigma = 13 min. flagbegin = 0 flagend = 0