Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 20.12.2016 beginning time = 1326 min.(UT), 22: 6 UT Xbegin = -9.066 nT time of max = 1345 min.(UT), 22:25 UT Xmax = 12.792 nT Y at Xmax = 2.906 nT endtime = 1415 min.(UT), 23:35 UT Xend = -4.724 nT amplitude = 21.858 nT base duration time = 89 min. 2sigma = 4.551 nT duration at 2sigma = 24 min. flagbegin = 0 flagend = 0 flagxcheck = 0