Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 01.09.2010 beginning time = 1294 min.(UT), 21:34 UT Xbegin = -2.276 nT time of max = 1319 min.(UT), 21:59 UT Xmax = 6.064 nT Y at Xmax = 5.462 nT endtime = 1348 min.(UT), 22:28 UT Xend = -3.012 nT amplitude = 8.340 nT base duration time = 54 min. 2sigma = 3.499 nT duration at 2sigma = 16 min. flagbegin = 0 flagend = 0 flagxcheck = 0