Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 14.12.2013 beginning time = 1107 min.(UT), 18:27 UT Xbegin = -19.012 nT time of max = 1141 min.(UT), 19: 1 UT Xmax = 24.808 nT Y at Xmax = 1.568 nT endtime = 1187 min.(UT), 19:47 UT Xend = -14.594 nT amplitude = 43.820 nT base duration time = 80 min. 2sigma = 10.127 nT duration at 2sigma = 31 min. flagbegin = 0 flagend = 0 flagxcheck = 0