Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 24.09.2010 beginning time = 1312 min.(UT), 21:52 UT Xbegin = -4.494 nT time of max = 1342 min.(UT), 22:22 UT Xmax = 15.556 nT Y at Xmax = -7.980 nT endtime = 1384 min.(UT), 23: 4 UT Xend = -13.382 nT amplitude = 20.050 nT base duration time = 72 min. 2sigma = 7.373 nT duration at 2sigma = 31 min. flagbegin = 0 flagend = 0 flagxcheck = 0