Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 18.03.2012 beginning time = 1268 min.(UT), 21: 8 UT Xbegin = -1.932 nT time of max = 1285 min.(UT), 21:25 UT Xmax = 5.522 nT Y at Xmax = -0.552 nT endtime = 1358 min.(UT), 22:38 UT Xend = -5.106 nT amplitude = 7.454 nT base duration time = 90 min. 2sigma = 5.734 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0