Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 14.09.2012 beginning time = 1374 min.(UT), 22:54 UT Xbegin = -3.942 nT time of max = 1405 min.(UT), 23:25 UT Xmax = 6.140 nT Y at Xmax = 5.088 nT endtime = 1463 min.(UT), 24:23 UT Xend = -2.548 nT amplitude = 10.082 nT base duration time = 89 min. 2sigma = 2.509 nT duration at 2sigma = 27 min. flagbegin = 0 flagend = 0 flagxcheck = 0