Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 23.11.2007 beginning time = 1072 min.(UT), 17:52 UT Xbegin = -6.526 nT time of max = 1100 min.(UT), 18:20 UT Xmax = 10.648 nT Y at Xmax = -3.108 nT endtime = 1124 min.(UT), 18:44 UT Xend = -4.226 nT amplitude = 17.174 nT base duration time = 52 min. 2sigma = 5.449 nT duration at 2sigma = 14 min. flagbegin = 0 flagend = 0 flagxcheck = 0