Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.04.2012 beginning time = 1255 min.(UT), 20:55 UT Xbegin = -5.998 nT time of max = 1280 min.(UT), 21:20 UT Xmax = 5.738 nT Y at Xmax = 5.910 nT endtime = 1337 min.(UT), 22:17 UT Xend = -2.092 nT amplitude = 11.736 nT base duration time = 82 min. 2sigma = 3.241 nT duration at 2sigma = 24 min. flagbegin = 0 flagend = 0 flagxcheck = 0