Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 07.09.2008 beginning time = 1113 min.(UT), 18:33 UT Xbegin = -16.006 nT time of max = 1138 min.(UT), 18:58 UT Xmax = 11.596 nT Y at Xmax = 9.268 nT endtime = 1193 min.(UT), 19:53 UT Xend = -2.816 nT amplitude = 27.602 nT base duration time = 80 min. 2sigma = 6.479 nT duration at 2sigma = 28 min. flagbegin = 0 flagend = 0 flagxcheck = 0