Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 14.04.2010 beginning time = 1370 min.(UT), 22:50 UT Xbegin = -22.236 nT time of max = 1405 min.(UT), 23:25 UT Xmax = 34.804 nT Y at Xmax = 3.016 nT endtime = 1421 min.(UT), 23:41 UT Xend = 6.766 nT amplitude = 57.040 nT base duration time = 51 min. 2sigma = 10.203 nT duration at 2sigma = 27 min. flagbegin = 0 flagend = 0 flagxcheck = 0