Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 25.12.2016 beginning time = 1266 min.(UT), 21: 6 UT Xbegin = -4.524 nT time of max = 1309 min.(UT), 21:49 UT Xmax = 5.632 nT Y at Xmax = 1.556 nT endtime = 1356 min.(UT), 22:36 UT Xend = -5.008 nT amplitude = 10.156 nT base duration time = 90 min. 2sigma = 10.963 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0