Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 05.04.2008 beginning time = 1389 min.(UT), 23: 9 UT Xbegin = -6.584 nT time of max = 1412 min.(UT), 23:32 UT Xmax = 7.848 nT Y at Xmax = -2.506 nT endtime = 1428 min.(UT), 23:48 UT Xend = -0.536 nT amplitude = 14.432 nT base duration time = 39 min. 2sigma = 7.944 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0