Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 10.03.2007 beginning time = 1141 min.(UT), 19: 1 UT Xbegin = -5.950 nT time of max = 1179 min.(UT), 19:39 UT Xmax = 6.580 nT Y at Xmax = 4.924 nT endtime = 1231 min.(UT), 20:31 UT Xend = -3.718 nT amplitude = 12.530 nT base duration time = 90 min. 2sigma = 3.264 nT duration at 2sigma = 24 min. flagbegin = 0 flagend = 0 flagxcheck = 0