Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 18.10.2010 beginning time = 1268 min.(UT), 21: 8 UT Xbegin = -1.330 nT time of max = 1293 min.(UT), 21:33 UT Xmax = 5.098 nT Y at Xmax = 1.240 nT endtime = 1309 min.(UT), 21:49 UT Xend = -6.092 nT amplitude = 6.428 nT base duration time = 41 min. 2sigma = 3.932 nT duration at 2sigma = 20 min. flagbegin = 0 flagend = 0 flagxcheck = 0