Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 27.11.2010 beginning time = 1224 min.(UT), 20:24 UT Xbegin = -4.334 nT time of max = 1245 min.(UT), 20:45 UT Xmax = 30.416 nT Y at Xmax = 19.074 nT endtime = 1273 min.(UT), 21:13 UT Xend = -10.648 nT amplitude = 34.750 nT base duration time = 49 min. 2sigma = 7.924 nT duration at 2sigma = 23 min. flagbegin = 0 flagend = 0 flagxcheck = 0