Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 29.02.2008 beginning time = 1260 min.(UT), 21: 0 UT Xbegin = -10.804 nT time of max = 1297 min.(UT), 21:37 UT Xmax = 22.044 nT Y at Xmax = -14.642 nT endtime = 1363 min.(UT), 22:43 UT Xend = -11.980 nT amplitude = 32.848 nT base duration time =103 min. 2sigma = 19.021 nT duration at 2sigma = 15 min. flagbegin = 0 flagend = 0 flagxcheck = 0