Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.08.2010 beginning time = 1321 min.(UT), 22: 1 UT Xbegin = -8.480 nT time of max = 1360 min.(UT), 22:40 UT Xmax = 8.516 nT Y at Xmax = -2.382 nT endtime = 1376 min.(UT), 22:56 UT Xend = -5.756 nT amplitude = 16.996 nT base duration time = 55 min. 2sigma = 6.325 nT duration at 2sigma = 16 min. flagbegin = 0 flagend = 0 flagxcheck = 0