Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 07.12.2015 beginning time = 1124 min.(UT), 18:44 UT Xbegin = -15.952 nT time of max = 1200 min.(UT), 20: 1 UT Xmax = 13.860 nT Y at Xmax = 6.534 nT endtime = 1261 min.(UT), 21: 1 UT Xend = -10.590 nT amplitude = 29.812 nT base duration time =137 min. 2sigma = 11.669 nT duration at 2sigma = 7 min. flagbegin = 4 flagend = 0