Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.08.2017 beginning time = 1305 min.(UT), 21:45 UT Xbegin = -15.302 nT time of max = 1326 min.(UT), 22: 6 UT Xmax = 10.872 nT Y at Xmax = -5.466 nT endtime = 1358 min.(UT), 22:38 UT Xend = -11.848 nT amplitude = 26.174 nT base duration time = 53 min. 2sigma = 8.226 nT duration at 2sigma = 1 min. flagbegin = 0 flagend = 0 flagxcheck = 0