Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.07.2012 beginning time = 1190 min.(UT), 19:50 UT Xbegin = -5.342 nT time of max = 1223 min.(UT), 20:23 UT Xmax = 8.058 nT Y at Xmax = -2.836 nT endtime = 1233 min.(UT), 20:33 UT Xend = -2.576 nT amplitude = 13.400 nT base duration time = 43 min. 2sigma = 11.231 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0