Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.02.2018 beginning time = 1351 min.(UT), 22:31 UT Xbegin = -5.432 nT time of max = 1372 min.(UT), 22:52 UT Xmax = 8.830 nT Y at Xmax = -1.730 nT endtime = 1400 min.(UT), 23:20 UT Xend = -0.554 nT amplitude = 14.262 nT base duration time = 49 min. 2sigma = 3.452 nT duration at 2sigma = 28 min. flagbegin = 0 flagend = 0 flagxcheck = 0