Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.02.2008 beginning time = 1127 min.(UT), 18:47 UT Xbegin = -8.442 nT time of max = 1156 min.(UT), 19:16 UT Xmax = 13.058 nT Y at Xmax = 6.806 nT endtime = 1185 min.(UT), 19:45 UT Xend = -5.562 nT amplitude = 21.500 nT base duration time = 58 min. 2sigma = 5.239 nT duration at 2sigma = 29 min. flagbegin = 0 flagend = 0 flagxcheck = 0