Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 24.12.2015 beginning time = 1168 min.(UT), 19:28 UT Xbegin = -4.618 nT time of max = 1196 min.(UT), 19:56 UT Xmax = 6.136 nT Y at Xmax = 4.222 nT endtime = 1233 min.(UT), 20:33 UT Xend = -4.594 nT amplitude = 10.754 nT base duration time = 65 min. 2sigma = 3.845 nT duration at 2sigma = 15 min. flagbegin = 0 flagend = 0