Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.07.2015 beginning time = 1259 min.(UT), 20:59 UT Xbegin = -4.606 nT time of max = 1322 min.(UT), 22: 2 UT Xmax = 5.172 nT Y at Xmax = -0.224 nT endtime = 1371 min.(UT), 22:51 UT Xend = -4.064 nT amplitude = 9.778 nT base duration time =112 min. 2sigma = 4.504 nT duration at 2sigma = 9 min. flagbegin = 0 flagend = 0