Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 10.10.2008 beginning time = 1360 min.(UT), 22:40 UT Xbegin = -4.890 nT time of max = 1382 min.(UT), 23: 2 UT Xmax = 7.230 nT Y at Xmax = -4.436 nT endtime = 1434 min.(UT), 23:54 UT Xend = -4.104 nT amplitude = 12.120 nT base duration time = 74 min. 2sigma = 2.452 nT duration at 2sigma = 30 min. flagbegin = 0 flagend = 0 flagxcheck = 0