Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.02.2008 beginning time = 1273 min.(UT), 21:13 UT Xbegin = -0.952 nT time of max = 1286 min.(UT), 21:26 UT Xmax = 7.938 nT Y at Xmax = 1.510 nT endtime = 1313 min.(UT), 21:53 UT Xend = -2.796 nT amplitude = 8.890 nT base duration time = 40 min. 2sigma = 3.109 nT duration at 2sigma = 19 min. flagbegin = 0 flagend = 0 flagxcheck = 0