Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 12.08.2008 beginning time = 1337 min.(UT), 22:17 UT Xbegin = -4.098 nT time of max = 1367 min.(UT), 22:47 UT Xmax = 5.906 nT Y at Xmax = -3.358 nT endtime = 1417 min.(UT), 23:37 UT Xend = -3.166 nT amplitude = 10.004 nT base duration time = 80 min. 2sigma = 3.291 nT duration at 2sigma = 23 min. flagbegin = 0 flagend = 0 flagxcheck = 0