Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 23.03.2013 beginning time = 1134 min.(UT), 18:54 UT Xbegin = 2.532 nT time of max = 1148 min.(UT), 19: 8 UT Xmax = 8.308 nT Y at Xmax = 1.422 nT endtime = 1212 min.(UT), 20:12 UT Xend = -15.330 nT amplitude = 5.776 nT base duration time = 78 min. 2sigma = 6.984 nT duration at 2sigma = 5 min. flagbegin = 0 flagend = 0 flagxcheck = 0