Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.05.2013 beginning time = 1113 min.(UT), 18:33 UT Xbegin = -0.200 nT time of max = 1133 min.(UT), 18:53 UT Xmax = 8.722 nT Y at Xmax = 0.872 nT endtime = 1161 min.(UT), 19:21 UT Xend = -6.760 nT amplitude = 8.922 nT base duration time = 48 min. 2sigma = 5.998 nT duration at 2sigma = 17 min. flagbegin = 0 flagend = 0 flagxcheck = 0