Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 14.09.2017 beginning time = 1260 min.(UT), 21: 0 UT Xbegin = -8.542 nT time of max = 1282 min.(UT), 21:22 UT Xmax = 19.774 nT Y at Xmax = -0.112 nT endtime = 1318 min.(UT), 21:58 UT Xend = -6.252 nT amplitude = 28.316 nT base duration time = 58 min. 2sigma = 8.678 nT duration at 2sigma = 21 min. flagbegin = 0 flagend = 0 flagxcheck = 0