Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 30.03.2013 beginning time = 1149 min.(UT), 19: 9 UT Xbegin = -11.198 nT time of max = 1165 min.(UT), 19:25 UT Xmax = 13.338 nT Y at Xmax = -9.430 nT endtime = 1208 min.(UT), 20: 8 UT Xend = -0.612 nT amplitude = 24.536 nT base duration time = 59 min. 2sigma = 7.654 nT duration at 2sigma = 23 min. flagbegin = 0 flagend = 0 flagxcheck = 1