Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 05.02.2011 beginning time = 1241 min.(UT), 20:41 UT Xbegin = -11.236 nT time of max = 1271 min.(UT), 21:11 UT Xmax = 12.436 nT Y at Xmax = 1.936 nT endtime = 1301 min.(UT), 21:41 UT Xend = -3.626 nT amplitude = 23.672 nT base duration time = 60 min. 2sigma = 7.704 nT duration at 2sigma = 21 min. flagbegin = 0 flagend = 0 flagxcheck = 1