Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 05.12.2010 beginning time = 1333 min.(UT), 22:13 UT Xbegin = -4.116 nT time of max = 1365 min.(UT), 22:45 UT Xmax = 6.210 nT Y at Xmax = 4.288 nT endtime = 1397 min.(UT), 23:17 UT Xend = -3.566 nT amplitude = 10.326 nT base duration time = 64 min. 2sigma = 2.211 nT duration at 2sigma = 33 min. flagbegin = 0 flagend = 0 flagxcheck = 0