Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.12.2015 beginning time = 1382 min.(UT), 23: 2 UT Xbegin = -0.544 nT time of max = 1398 min.(UT), 23:17 UT Xmax = 8.050 nT Y at Xmax = 1.426 nT endtime = 1422 min.(UT), 23:42 UT Xend = -2.438 nT amplitude = 8.594 nT base duration time = 40 min. 2sigma = 9.553 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0