Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 28.11.2010 beginning time = 1178 min.(UT), 19:38 UT Xbegin = -3.078 nT time of max = 1208 min.(UT), 20: 8 UT Xmax = 5.806 nT Y at Xmax = -0.162 nT endtime = 1251 min.(UT), 20:51 UT Xend = -4.596 nT amplitude = 8.884 nT base duration time = 73 min. 2sigma = 4.500 nT duration at 2sigma = 15 min. flagbegin = 0 flagend = 0 flagxcheck = 0