Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 20.10.2015 beginning time = 1271 min.(UT), 21:11 UT Xbegin = -4.780 nT time of max = 1299 min.(UT), 21:39 UT Xmax = 12.226 nT Y at Xmax = -0.054 nT endtime = 1338 min.(UT), 22:18 UT Xend = -5.248 nT amplitude = 17.006 nT base duration time = 67 min. 2sigma = 4.931 nT duration at 2sigma = 26 min. flagbegin = 0 flagend = 0