Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 26.07.2007 beginning time = 1343 min.(UT), 22:23 UT Xbegin = -4.160 nT time of max = 1378 min.(UT), 22:58 UT Xmax = 9.106 nT Y at Xmax = 2.004 nT endtime = 1404 min.(UT), 23:24 UT Xend = -1.384 nT amplitude = 13.266 nT base duration time = 61 min. 2sigma = 7.116 nT duration at 2sigma = 10 min. flagbegin = 0 flagend = 0 flagxcheck = 0