Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 30.01.2007 beginning time = 1082 min.(UT), 18: 2 UT Xbegin = -15.418 nT time of max = 1113 min.(UT), 18:33 UT Xmax = 10.322 nT Y at Xmax = 7.148 nT endtime = 1155 min.(UT), 19:15 UT Xend = -2.004 nT amplitude = 25.740 nT base duration time = 73 min. 2sigma = 9.745 nT duration at 2sigma = 7 min. flagbegin = 0 flagend = 0 flagxcheck = 0