Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.10.2017 beginning time = 1299 min.(UT), 21:39 UT Xbegin = -9.708 nT time of max = 1358 min.(UT), 22:38 UT Xmax = 7.426 nT Y at Xmax = 11.392 nT endtime = 1415 min.(UT), 23:35 UT Xend = -7.954 nT amplitude = 17.134 nT base duration time =116 min. 2sigma = 11.870 nT duration at 2sigma = 0 min. flagbegin = 4 flagend = 0 flagxcheck = 0