Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 25.03.2009 beginning time = 1352 min.(UT), 22:32 UT Xbegin = 1.344 nT time of max = 1365 min.(UT), 22:45 UT Xmax = 5.376 nT Y at Xmax = -2.976 nT endtime = 1393 min.(UT), 23:13 UT Xend = -0.698 nT amplitude = 4.032 nT base duration time = 41 min. 2sigma = 3.854 nT duration at 2sigma = 12 min. flagbegin = 0 flagend = 0 flagxcheck = 0