Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 22.08.2012 beginning time = 1348 min.(UT), 22:28 UT Xbegin = -7.646 nT time of max = 1380 min.(UT), 23: 0 UT Xmax = 13.232 nT Y at Xmax = -1.152 nT endtime = 1431 min.(UT), 23:51 UT Xend = -6.050 nT amplitude = 20.878 nT base duration time = 83 min. 2sigma = 4.808 nT duration at 2sigma = 33 min. flagbegin = 0 flagend = 0 flagxcheck = 0