Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 18.02.2013 beginning time = 1278 min.(UT), 21:18 UT Xbegin = -3.518 nT time of max = 1321 min.(UT), 22: 1 UT Xmax = 5.774 nT Y at Xmax = 4.342 nT endtime = 1355 min.(UT), 22:35 UT Xend = -4.796 nT amplitude = 9.292 nT base duration time = 77 min. 2sigma = 3.147 nT duration at 2sigma = 39 min. flagbegin = 0 flagend = 0 flagxcheck = 0