Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 30.05.2010 beginning time = 1172 min.(UT), 19:32 UT Xbegin = -8.924 nT time of max = 1207 min.(UT), 20: 7 UT Xmax = 6.874 nT Y at Xmax = 1.182 nT endtime = 1224 min.(UT), 20:24 UT Xend = -12.586 nT amplitude = 15.798 nT base duration time = 52 min. 2sigma = 9.887 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0