Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 10.05.2012 beginning time = 1253 min.(UT), 20:53 UT Xbegin = -6.198 nT time of max = 1271 min.(UT), 21:11 UT Xmax = 4.828 nT Y at Xmax = 0.050 nT endtime = 1345 min.(UT), 22:25 UT Xend = -5.638 nT amplitude = 11.026 nT base duration time = 92 min. 2sigma = 5.324 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 1