Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 05.08.2011 beginning time = 1358 min.(UT), 22:38 UT Xbegin = -10.206 nT time of max = 1377 min.(UT), 22:57 UT Xmax = 35.192 nT Y at Xmax = 11.318 nT endtime = 1402 min.(UT), 23:22 UT Xend = -27.436 nT amplitude = 45.398 nT base duration time = 44 min. 2sigma = 14.118 nT duration at 2sigma = 15 min. flagbegin = 0 flagend = 0 flagxcheck = 0