Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.05.2010 beginning time = 1113 min.(UT), 18:33 UT Xbegin = -12.946 nT time of max = 1190 min.(UT), 19:50 UT Xmax = 13.066 nT Y at Xmax = 1.042 nT endtime = 1233 min.(UT), 20:33 UT Xend = -5.876 nT amplitude = 26.012 nT base duration time =120 min. 2sigma = 12.823 nT duration at 2sigma = 2 min. flagbegin = 0 flagend = 0 flagxcheck = 0