Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 26.09.2012 beginning time = 1400 min.(UT), 23:20 UT Xbegin = -4.868 nT time of max = 1441 min.(UT), 24: 1 UT Xmax = 4.861 nT Y at Xmax = -2.948 nT endtime = 1488 min.(UT), 24:48 UT Xend = -3.954 nT amplitude = 9.729 nT base duration time = 88 min. 2sigma = 4.288 nT duration at 2sigma = 26 min. flagbegin = 0 flagend = 0 flagxcheck = 1