Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.12.2016 beginning time = 1289 min.(UT), 21:29 UT Xbegin = -8.826 nT time of max = 1313 min.(UT), 21:53 UT Xmax = 9.614 nT Y at Xmax = 2.080 nT endtime = 1339 min.(UT), 22:19 UT Xend = 0.134 nT amplitude = 18.440 nT base duration time = 50 min. 2sigma = 4.584 nT duration at 2sigma = 23 min. flagbegin = 0 flagend = 0 flagxcheck = 0