Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 22.07.2011 beginning time = 1364 min.(UT), 22:44 UT Xbegin = -4.670 nT time of max = 1388 min.(UT), 23: 8 UT Xmax = 6.812 nT Y at Xmax = -1.332 nT endtime = 1405 min.(UT), 23:25 UT Xend = -2.050 nT amplitude = 11.482 nT base duration time = 41 min. 2sigma = 5.643 nT duration at 2sigma = 7 min. flagbegin = 0 flagend = 0 flagxcheck = 0