Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 11.01.2011 beginning time = 1360 min.(UT), 22:40 UT Xbegin = -7.804 nT time of max = 1396 min.(UT), 23:16 UT Xmax = 11.882 nT Y at Xmax = -4.492 nT endtime = 1449 min.(UT), 24: 9 UT Xend = -6.712 nT amplitude = 19.686 nT base duration time = 89 min. 2sigma = 5.622 nT duration at 2sigma = 22 min. flagbegin = 0 flagend = 0 flagxcheck = 0