Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 20.08.2015 beginning time = 1347 min.(UT), 22:27 UT Xbegin = -9.040 nT time of max = 1370 min.(UT), 22:48 UT Xmax = 9.844 nT Y at Xmax = -5.120 nT endtime = 1407 min.(UT), 23:27 UT Xend = -4.748 nT amplitude = 18.884 nT base duration time = 60 min. 2sigma = 6.199 nT duration at 2sigma = 18 min. flagbegin = 0 flagend = 0