Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.03.2009 beginning time = 1317 min.(UT), 21:57 UT Xbegin = -3.982 nT time of max = 1344 min.(UT), 22:24 UT Xmax = 9.586 nT Y at Xmax = -5.576 nT endtime = 1372 min.(UT), 22:52 UT Xend = -0.856 nT amplitude = 13.568 nT base duration time = 55 min. 2sigma = 5.005 nT duration at 2sigma = 16 min. flagbegin = 0 flagend = 0 flagxcheck = 0