Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.03.2007 beginning time = 1101 min.(UT), 18:21 UT Xbegin = -8.822 nT time of max = 1146 min.(UT), 19: 6 UT Xmax = 6.368 nT Y at Xmax = 9.134 nT endtime = 1190 min.(UT), 19:50 UT Xend = -3.182 nT amplitude = 15.190 nT base duration time = 89 min. 2sigma = 5.369 nT duration at 2sigma = 19 min. flagbegin = 0 flagend = 0 flagxcheck = 0