Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.03.2011 beginning time = 988 min.(UT), 16:28 UT Xbegin = -6.728 nT time of max = 1026 min.(UT), 17: 6 UT Xmax = 13.788 nT Y at Xmax = 9.164 nT endtime = 1070 min.(UT), 17:50 UT Xend = -8.934 nT amplitude = 20.516 nT base duration time = 82 min. 2sigma = 9.810 nT duration at 2sigma = 12 min. flagbegin = 0 flagend = 0 flagxcheck = 0