Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 23.02.2012 beginning time = 1320 min.(UT), 22: 0 UT Xbegin = -6.168 nT time of max = 1346 min.(UT), 22:26 UT Xmax = 7.202 nT Y at Xmax = -0.106 nT endtime = 1392 min.(UT), 23:12 UT Xend = -2.704 nT amplitude = 13.370 nT base duration time = 72 min. 2sigma = 3.250 nT duration at 2sigma = 35 min. flagbegin = 0 flagend = 0 flagxcheck = 0