Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.01.2007 beginning time = 1089 min.(UT), 18: 9 UT Xbegin = -23.398 nT time of max = 1133 min.(UT), 18:53 UT Xmax = 31.432 nT Y at Xmax = 0.898 nT endtime = 1174 min.(UT), 19:34 UT Xend = -17.404 nT amplitude = 54.830 nT base duration time = 85 min. 2sigma = 14.493 nT duration at 2sigma = 32 min. flagbegin = 0 flagend = 0 flagxcheck = 0