Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 01.12.2010 beginning time = 1154 min.(UT), 19:14 UT Xbegin = -5.046 nT time of max = 1179 min.(UT), 19:39 UT Xmax = 6.864 nT Y at Xmax = 2.434 nT endtime = 1240 min.(UT), 20:40 UT Xend = -5.010 nT amplitude = 11.910 nT base duration time = 86 min. 2sigma = 2.950 nT duration at 2sigma = 44 min. flagbegin = 0 flagend = 0 flagxcheck = 0