Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.08.2018 beginning time = 1182 min.(UT), 19:42 UT Xbegin = -7.108 nT time of max = 1232 min.(UT), 20:32 UT Xmax = 11.650 nT Y at Xmax = 2.354 nT endtime = 1309 min.(UT), 21:49 UT Xend = -11.986 nT amplitude = 18.758 nT base duration time =127 min. 2sigma = 9.147 nT duration at 2sigma = 18 min. flagbegin = 0 flagend = 4 flagxcheck = 0