Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 01.10.2015 beginning time = 1149 min.(UT), 19: 9 UT Xbegin = -7.740 nT time of max = 1221 min.(UT), 20:21 UT Xmax = 9.766 nT Y at Xmax = -4.892 nT endtime = 1285 min.(UT), 21:25 UT Xend = -11.890 nT amplitude = 17.506 nT base duration time =136 min. 2sigma = 7.253 nT duration at 2sigma = 20 min. flagbegin = 4 flagend = 4