Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 10.07.2007 beginning time = 1351 min.(UT), 22:31 UT Xbegin = -5.770 nT time of max = 1388 min.(UT), 23: 8 UT Xmax = 5.588 nT Y at Xmax = -7.482 nT endtime = 1397 min.(UT), 23:17 UT Xend = 0.812 nT amplitude = 11.358 nT base duration time = 46 min. 2sigma = 2.963 nT duration at 2sigma = 8 min. flagbegin = 0 flagend = 0 flagxcheck = 0