Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 13.03.2007 beginning time = 1400 min.(UT), 23:20 UT Xbegin = -10.190 nT time of max = 1423 min.(UT), 23:43 UT Xmax = 8.634 nT Y at Xmax = -3.746 nT endtime = 1454 min.(UT), 24:14 UT Xend = -1.578 nT amplitude = 18.824 nT base duration time = 54 min. 2sigma = 10.608 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0