Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 29.05.2010 beginning time = 1225 min.(UT), 20:25 UT Xbegin = -12.746 nT time of max = 1247 min.(UT), 20:47 UT Xmax = 16.090 nT Y at Xmax = 13.810 nT endtime = 1275 min.(UT), 21:15 UT Xend = -2.078 nT amplitude = 28.836 nT base duration time = 50 min. 2sigma = 7.929 nT duration at 2sigma = 19 min. flagbegin = 0 flagend = 0 flagxcheck = 0