Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.03.2012 beginning time = 1271 min.(UT), 21:11 UT Xbegin = -12.158 nT time of max = 1302 min.(UT), 21:42 UT Xmax = 18.452 nT Y at Xmax = 5.012 nT endtime = 1354 min.(UT), 22:34 UT Xend = -13.234 nT amplitude = 30.610 nT base duration time = 83 min. 2sigma = 7.710 nT duration at 2sigma = 30 min. flagbegin = 0 flagend = 0 flagxcheck = 0