Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 21.01.2012 beginning time = 1366 min.(UT), 22:46 UT Xbegin = -2.562 nT time of max = 1396 min.(UT), 23:16 UT Xmax = 6.218 nT Y at Xmax = 2.050 nT endtime = 1420 min.(UT), 23:40 UT Xend = -4.006 nT amplitude = 8.780 nT base duration time = 54 min. 2sigma = 4.134 nT duration at 2sigma = 14 min. flagbegin = 0 flagend = 0 flagxcheck = 0