Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 08.09.2008 beginning time = 1265 min.(UT), 21: 5 UT Xbegin = -3.794 nT time of max = 1291 min.(UT), 21:31 UT Xmax = 10.014 nT Y at Xmax = -0.458 nT endtime = 1332 min.(UT), 22:12 UT Xend = -1.930 nT amplitude = 13.808 nT base duration time = 67 min. 2sigma = 6.912 nT duration at 2sigma = 20 min. flagbegin = 0 flagend = 0 flagxcheck = 0