Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 29.06.2007 beginning time = 1232 min.(UT), 20:32 UT Xbegin = -8.032 nT time of max = 1261 min.(UT), 21: 1 UT Xmax = 11.748 nT Y at Xmax = -1.096 nT endtime = 1293 min.(UT), 21:33 UT Xend = -5.562 nT amplitude = 19.780 nT base duration time = 61 min. 2sigma = 5.703 nT duration at 2sigma = 19 min. flagbegin = 0 flagend = 0 flagxcheck = 0