Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.05.2015 beginning time = 1314 min.(UT), 21:54 UT Xbegin = -11.384 nT time of max = 1362 min.(UT), 22:42 UT Xmax = 5.818 nT Y at Xmax = -1.144 nT endtime = 1384 min.(UT), 23: 4 UT Xend = 1.692 nT amplitude = 17.202 nT base duration time = 70 min. 2sigma = 6.410 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0