Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 05.08.2017 beginning time = 1230 min.(UT), 20:30 UT Xbegin = 1.826 nT time of max = 1240 min.(UT), 20:40 UT Xmax = 5.978 nT Y at Xmax = 5.252 nT endtime = 1268 min.(UT), 21: 8 UT Xend = -2.734 nT amplitude = 4.152 nT base duration time = 38 min. 2sigma = 6.385 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0