Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.12.2014 beginning time = 1174 min.(UT), 19:34 UT Xbegin = -9.784 nT time of max = 1206 min.(UT), 20: 6 UT Xmax = 6.982 nT Y at Xmax = 5.304 nT endtime = 1230 min.(UT), 20:30 UT Xend = -7.378 nT amplitude = 16.766 nT base duration time = 56 min. 2sigma = 7.419 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0