Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 13.11.2007 beginning time = 1242 min.(UT), 20:42 UT Xbegin = -2.926 nT time of max = 1271 min.(UT), 21:11 UT Xmax = 5.504 nT Y at Xmax = 1.516 nT endtime = 1303 min.(UT), 21:43 UT Xend = -5.868 nT amplitude = 8.430 nT base duration time = 61 min. 2sigma = 5.067 nT duration at 2sigma = 5 min. flagbegin = 0 flagend = 0 flagxcheck = 0