Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.10.2012 beginning time = 1361 min.(UT), 22:41 UT Xbegin = -8.860 nT time of max = 1399 min.(UT), 23:19 UT Xmax = 10.558 nT Y at Xmax = -1.862 nT endtime = 1429 min.(UT), 23:49 UT Xend = -0.980 nT amplitude = 19.418 nT base duration time = 68 min. 2sigma = 4.843 nT duration at 2sigma = 30 min. flagbegin = 0 flagend = 0 flagxcheck = 0