Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.03.2008 beginning time = 1299 min.(UT), 21:39 UT Xbegin = -8.754 nT time of max = 1370 min.(UT), 22:50 UT Xmax = 9.526 nT Y at Xmax = 0.412 nT endtime = 1404 min.(UT), 23:24 UT Xend = -2.426 nT amplitude = 18.280 nT base duration time =105 min. 2sigma = 8.960 nT duration at 2sigma = 6 min. flagbegin = 4 flagend = 0 flagxcheck = 0