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 = 1321 min.(UT), 22: 1 UT Xbegin = -4.932 nT time of max = 1354 min.(UT), 22:34 UT Xmax = 4.882 nT Y at Xmax = 3.546 nT endtime = 1391 min.(UT), 23:11 UT Xend = -9.482 nT amplitude = 9.814 nT base duration time = 70 min. 2sigma = 5.067 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0