Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.02.2011 beginning time = 1126 min.(UT), 18:46 UT Xbegin = -2.632 nT time of max = 1145 min.(UT), 19: 5 UT Xmax = 4.958 nT Y at Xmax = 2.542 nT endtime = 1184 min.(UT), 19:44 UT Xend = -7.618 nT amplitude = 7.590 nT base duration time = 58 min. 2sigma = 3.093 nT duration at 2sigma = 10 min. flagbegin = 0 flagend = 4 flagxcheck = 0