Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 25.07.2013 beginning time = 1377 min.(UT), 22:57 UT Xbegin = 2.138 nT time of max = 1391 min.(UT), 23:11 UT Xmax = 5.604 nT Y at Xmax = -4.298 nT endtime = 1433 min.(UT), 23:53 UT Xend = -7.432 nT amplitude = 3.466 nT base duration time = 56 min. 2sigma = 5.449 nT duration at 2sigma = 4 min. flagbegin = 0 flagend = 0 flagxcheck = 0