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 = 1093 min.(UT), 18:13 UT Xbegin = -11.542 nT time of max = 1135 min.(UT), 18:55 UT Xmax = 13.162 nT Y at Xmax = -6.010 nT endtime = 1162 min.(UT), 19:22 UT Xend = -8.860 nT amplitude = 24.704 nT base duration time = 69 min. 2sigma = 7.419 nT duration at 2sigma = 29 min. flagbegin = 0 flagend = 0 flagxcheck = 0