Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 06.08.2007 beginning time = 1272 min.(UT), 21:12 UT Xbegin = -13.562 nT time of max = 1305 min.(UT), 21:45 UT Xmax = 17.834 nT Y at Xmax = 6.756 nT endtime = 1379 min.(UT), 22:59 UT Xend = -22.290 nT amplitude = 31.396 nT base duration time =107 min. 2sigma = 9.993 nT duration at 2sigma = 34 min. flagbegin = 0 flagend = 0 flagxcheck = 0