Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 17.02.2017 beginning time = 1398 min.(UT), 23:18 UT Xbegin = -20.508 nT time of max = 1443 min.(UT), 24: 3 UT Xmax = 24.899 nT Y at Xmax = -3.680 nT endtime = 1511 min.(UT), 25:11 UT Xend = -15.590 nT amplitude = 45.407 nT base duration time =113 min. 2sigma = 10.743 nT duration at 2sigma = 33 min. flagbegin = 0 flagend = 2 flagxcheck = 1