Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 30.07.2015 beginning time = 1377 min.(UT), 22:57 UT Xbegin = -16.504 nT time of max = 1404 min.(UT), 23:24 UT Xmax = 18.486 nT Y at Xmax = 3.034 nT endtime = 1461 min.(UT), 24:21 UT Xend = -6.848 nT amplitude = 34.990 nT base duration time = 84 min. 2sigma = 8.251 nT duration at 2sigma = 34 min. flagbegin = 2 flagend = 0