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 = 1240 min.(UT), 20:40 UT Xbegin = -5.264 nT time of max = 1267 min.(UT), 21: 7 UT Xmax = 6.484 nT Y at Xmax = 2.616 nT endtime = 1301 min.(UT), 21:41 UT Xend = -5.154 nT amplitude = 11.748 nT base duration time = 61 min. 2sigma = 9.553 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0