Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.05.2010 beginning time = 1113 min.(UT), 18:33 UT Xbegin = -12.946 nT time of max = 1148 min.(UT), 19: 8 UT Xmax = 12.646 nT Y at Xmax = -7.882 nT endtime = 1173 min.(UT), 19:33 UT Xend = -3.678 nT amplitude = 25.592 nT base duration time = 60 min. 2sigma = 12.823 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0