Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 28.07.2017 beginning time = 1145 min.(UT), 19: 5 UT Xbegin = -5.200 nT time of max = 1168 min.(UT), 19:28 UT Xmax = 6.598 nT Y at Xmax = 10.562 nT endtime = 1184 min.(UT), 19:44 UT Xend = -1.916 nT amplitude = 11.798 nT base duration time = 39 min. 2sigma = 3.914 nT duration at 2sigma = 14 min. flagbegin = 0 flagend = 0 flagxcheck = 0