Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 10.08.2017 beginning time = 1337 min.(UT), 22:17 UT Xbegin = -2.300 nT time of max = 1359 min.(UT), 22:39 UT Xmax = 4.964 nT Y at Xmax = 2.088 nT endtime = 1393 min.(UT), 23:13 UT Xend = -2.262 nT amplitude = 7.264 nT base duration time = 56 min. 2sigma = 2.726 nT duration at 2sigma = 20 min. flagbegin = 0 flagend = 0 flagxcheck = 0