Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 26.03.2007 beginning time = 1390 min.(UT), 23:10 UT Xbegin = -5.418 nT time of max = 1418 min.(UT), 23:38 UT Xmax = 6.710 nT Y at Xmax = -3.684 nT endtime = 1469 min.(UT), 24:29 UT Xend = -2.636 nT amplitude = 12.128 nT base duration time = 79 min. 2sigma = 4.982 nT duration at 2sigma = 14 min. flagbegin = 0 flagend = 0 flagxcheck = 0