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 = 1165 min.(UT), 19:25 UT Xbegin = -13.020 nT time of max = 1198 min.(UT), 19:58 UT Xmax = 16.730 nT Y at Xmax = -0.128 nT endtime = 1240 min.(UT), 20:40 UT Xend = -8.508 nT amplitude = 29.750 nT base duration time = 75 min. 2sigma = 11.133 nT duration at 2sigma = 14 min. flagbegin = 0 flagend = 0