Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.07.2010 beginning time = 1325 min.(UT), 22: 5 UT Xbegin = -6.490 nT time of max = 1352 min.(UT), 22:32 UT Xmax = 6.446 nT Y at Xmax = 3.608 nT endtime = 1385 min.(UT), 23: 5 UT Xend = 0.282 nT amplitude = 12.936 nT base duration time = 60 min. 2sigma = 7.863 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0