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 = 1266 min.(UT), 21: 6 UT Xbegin = 1.794 nT time of max = 1291 min.(UT), 21:31 UT Xmax = 16.900 nT Y at Xmax = -3.242 nT endtime = 1340 min.(UT), 22:20 UT Xend = -15.398 nT amplitude = 15.106 nT base duration time = 74 min. 2sigma = 9.964 nT duration at 2sigma = 16 min. flagbegin = 0 flagend = 0 flagxcheck = 0