Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 10.04.2018 beginning time = 1256 min.(UT), 20:56 UT Xbegin = -19.438 nT time of max = 1328 min.(UT), 22: 8 UT Xmax = 9.420 nT Y at Xmax = 0.346 nT endtime = 1357 min.(UT), 22:37 UT Xend = -0.668 nT amplitude = 28.858 nT base duration time =101 min. 2sigma = 8.369 nT duration at 2sigma = 12 min. flagbegin = 4 flagend = 0 flagxcheck = 0