Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.02.2017 beginning time = 1203 min.(UT), 20: 3 UT Xbegin = -15.190 nT time of max = 1238 min.(UT), 20:38 UT Xmax = 15.758 nT Y at Xmax = -9.606 nT endtime = 1299 min.(UT), 21:39 UT Xend = -6.490 nT amplitude = 30.948 nT base duration time = 96 min. 2sigma = 6.295 nT duration at 2sigma = 29 min. flagbegin = 0 flagend = 0 flagxcheck = 0