Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.08.2017 beginning time = 1353 min.(UT), 22:33 UT Xbegin = -7.856 nT time of max = 1371 min.(UT), 22:51 UT Xmax = 20.844 nT Y at Xmax = 6.904 nT endtime = 1402 min.(UT), 23:22 UT Xend = -5.796 nT amplitude = 28.700 nT base duration time = 49 min. 2sigma = 11.742 nT duration at 2sigma = 17 min. flagbegin = 0 flagend = 0 flagxcheck = 0