Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.10.2007 beginning time = 1213 min.(UT), 20:13 UT Xbegin = -6.878 nT time of max = 1233 min.(UT), 20:33 UT Xmax = 14.228 nT Y at Xmax = -4.324 nT endtime = 1264 min.(UT), 21: 4 UT Xend = -5.738 nT amplitude = 21.106 nT base duration time = 51 min. 2sigma = 8.086 nT duration at 2sigma = 19 min. flagbegin = 0 flagend = 0 flagxcheck = 0