Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 10.09.2017 beginning time = 1247 min.(UT), 20:47 UT Xbegin = -2.678 nT time of max = 1291 min.(UT), 21:31 UT Xmax = 14.116 nT Y at Xmax = 0.092 nT endtime = 1313 min.(UT), 21:53 UT Xend = -11.822 nT amplitude = 16.794 nT base duration time = 66 min. 2sigma = 5.675 nT duration at 2sigma = 28 min. flagbegin = 0 flagend = 0 flagxcheck = 0