Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 24.12.2017 beginning time = 1234 min.(UT), 20:34 UT Xbegin = -9.104 nT time of max = 1281 min.(UT), 21:21 UT Xmax = 5.476 nT Y at Xmax = 2.894 nT endtime = 1299 min.(UT), 21:39 UT Xend = 1.002 nT amplitude = 14.580 nT base duration time = 65 min. 2sigma = 6.986 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0