Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 09.07.2017 beginning time = 1419 min.(UT), 23:39 UT Xbegin = 1.496 nT time of max = 1429 min.(UT), 23:49 UT Xmax = 8.418 nT Y at Xmax = -3.198 nT endtime = 1454 min.(UT), 24:14 UT Xend = -3.060 nT amplitude = 6.922 nT base duration time = 35 min. 2sigma = 10.696 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0