Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.08.2008 beginning time = 1355 min.(UT), 22:35 UT Xbegin = -13.404 nT time of max = 1404 min.(UT), 23:24 UT Xmax = 15.114 nT Y at Xmax = -12.858 nT endtime = 1454 min.(UT), 24:14 UT Xend = -2.818 nT amplitude = 28.518 nT base duration time = 99 min. 2sigma = 9.964 nT duration at 2sigma = 21 min. flagbegin = 0 flagend = 0 flagxcheck = 0