Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 18.10.2015 beginning time = 1281 min.(UT), 21:21 UT Xbegin = -2.248 nT time of max = 1307 min.(UT), 21:46 UT Xmax = 10.798 nT Y at Xmax = -2.698 nT endtime = 1349 min.(UT), 22:29 UT Xend = -3.402 nT amplitude = 13.046 nT base duration time = 68 min. 2sigma = 8.058 nT duration at 2sigma = 12 min. flagbegin = 0 flagend = 0