Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 10.12.2015 beginning time = 1395 min.(UT), 23:15 UT Xbegin = -16.924 nT time of max = 1440 min.(UT), 24: 0 UT Xmax = 11.638 nT Y at Xmax = 5.658 nT endtime = 1491 min.(UT), 24:51 UT Xend = -9.972 nT amplitude = 28.562 nT base duration time = 96 min. 2sigma = 11.133 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0