Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 16.09.2018 beginning time = 1373 min.(UT), 22:53 UT Xbegin = -4.212 nT time of max = 1395 min.(UT), 23:15 UT Xmax = 7.270 nT Y at Xmax = -7.404 nT endtime = 1433 min.(UT), 23:53 UT Xend = -3.543 nT amplitude = 11.482 nT base duration time = 60 min. 2sigma = 2.923 nT duration at 2sigma = 28 min. flagbegin = 0 flagend = 0 flagxcheck = 0