Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 04.09.2016 beginning time = 1190 min.(UT), 19:50 UT Xbegin = -12.566 nT time of max = 1248 min.(UT), 20:48 UT Xmax = 20.636 nT Y at Xmax = -2.726 nT endtime = 1273 min.(UT), 21:13 UT Xend = -10.638 nT amplitude = 33.202 nT base duration time = 83 min. 2sigma = 11.085 nT duration at 2sigma = 30 min. flagbegin = 0 flagend = 0 flagxcheck = 0