Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 29.09.2017 beginning time = 1134 min.(UT), 18:54 UT Xbegin = -6.302 nT time of max = 1177 min.(UT), 19:37 UT Xmax = 6.042 nT Y at Xmax = 1.292 nT endtime = 1214 min.(UT), 20:14 UT Xend = -3.636 nT amplitude = 12.344 nT base duration time = 80 min. 2sigma = 6.176 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0