Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 30.12.2014 beginning time = 1080 min.(UT), 18: 0 UT Xbegin = -2.934 nT time of max = 1113 min.(UT), 18:33 UT Xmax = 6.060 nT Y at Xmax = 0.634 nT endtime = 1181 min.(UT), 19:41 UT Xend = -10.084 nT amplitude = 8.994 nT base duration time =101 min. 2sigma = 5.941 nT duration at 2sigma = 2 min. flagbegin = 0 flagend = 4 flagxcheck = 0