Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 21.12.2014 beginning time = 1231 min.(UT), 20:31 UT Xbegin = -1.960 nT time of max = 1244 min.(UT), 20:44 UT Xmax = 4.762 nT Y at Xmax = -3.804 nT endtime = 1258 min.(UT), 20:58 UT Xend = 0.332 nT amplitude = 6.722 nT base duration time = 27 min. 2sigma = 5.357 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0