Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 13.11.2007 beginning time = 1400 min.(UT), 23:20 UT Xbegin = -8.428 nT time of max = 1418 min.(UT), 23:38 UT Xmax = 5.564 nT Y at Xmax = -11.790 nT endtime = 1446 min.(UT), 24: 6 UT Xend = -0.282 nT amplitude = 13.992 nT base duration time = 46 min. 2sigma = 5.067 nT duration at 2sigma = 5 min. flagbegin = 0 flagend = 0 flagxcheck = 0