Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 19.05.2007 beginning time = 1054 min.(UT), 17:34 UT Xbegin = -7.550 nT time of max = 1090 min.(UT), 18:10 UT Xmax = 11.770 nT Y at Xmax = 1.732 nT endtime = 1122 min.(UT), 18:42 UT Xend = -5.734 nT amplitude = 19.320 nT base duration time = 68 min. 2sigma = 5.209 nT duration at 2sigma = 24 min. flagbegin = 0 flagend = 0 flagxcheck = 0