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 = 1255 min.(UT), 20:55 UT Xbegin = 1.162 nT time of max = 1279 min.(UT), 21:19 UT Xmax = 13.438 nT Y at Xmax = 1.258 nT endtime = 1327 min.(UT), 22: 7 UT Xend = -9.064 nT amplitude = 12.276 nT base duration time = 72 min. 2sigma = 14.493 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 1