Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 30.12.2015 beginning time = 1336 min.(UT), 22:16 UT Xbegin = -1.992 nT time of max = 1375 min.(UT), 22:57 UT Xmax = 8.668 nT Y at Xmax = -0.784 nT endtime = 1416 min.(UT), 23:36 UT Xend = -4.976 nT amplitude = 10.660 nT base duration time = 80 min. 2sigma = 3.486 nT duration at 2sigma = 37 min. flagbegin = 0 flagend = 0