Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.04.2010 beginning time = 1159 min.(UT), 19:19 UT Xbegin = -3.868 nT time of max = 1178 min.(UT), 19:38 UT Xmax = 11.574 nT Y at Xmax = 0.374 nT endtime = 1220 min.(UT), 20:20 UT Xend = -3.680 nT amplitude = 15.442 nT base duration time = 61 min. 2sigma = 7.032 nT duration at 2sigma = 21 min. flagbegin = 0 flagend = 0 flagxcheck = 0