Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 25.12.2010 beginning time = 1125 min.(UT), 18:45 UT Xbegin = -1.482 nT time of max = 1146 min.(UT), 19: 6 UT Xmax = 5.792 nT Y at Xmax = 3.176 nT endtime = 1172 min.(UT), 19:32 UT Xend = -3.120 nT amplitude = 7.274 nT base duration time = 47 min. 2sigma = 3.290 nT duration at 2sigma = 16 min. flagbegin = 0 flagend = 0 flagxcheck = 0