Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 04.10.2015 beginning time = 1328 min.(UT), 22: 8 UT Xbegin = -10.984 nT time of max = 1361 min.(UT), 22:40 UT Xmax = 11.762 nT Y at Xmax = 7.984 nT endtime = 1389 min.(UT), 23: 9 UT Xend = -4.302 nT amplitude = 22.746 nT base duration time = 61 min. 2sigma = 8.641 nT duration at 2sigma = 11 min. flagbegin = 0 flagend = 0