Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 12.03.2012 beginning time = 1264 min.(UT), 21: 4 UT Xbegin = -4.000 nT time of max = 1327 min.(UT), 22: 7 UT Xmax = 6.558 nT Y at Xmax = -0.812 nT endtime = 1381 min.(UT), 23: 1 UT Xend = -3.932 nT amplitude = 10.558 nT base duration time =117 min. 2sigma = 14.266 nT duration at 2sigma = 0 min. flagbegin = 4 flagend = 0 flagxcheck = 0