Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.06.2008 beginning time = 1340 min.(UT), 22:20 UT Xbegin = -0.618 nT time of max = 1380 min.(UT), 23: 0 UT Xmax = 5.706 nT Y at Xmax = 0.564 nT endtime = 1414 min.(UT), 23:34 UT Xend = -2.416 nT amplitude = 6.324 nT base duration time = 74 min. 2sigma = 5.220 nT duration at 2sigma = 6 min. flagbegin = 0 flagend = 0 flagxcheck = 0