Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 23.04.2017 beginning time = 1254 min.(UT), 20:54 UT Xbegin = -6.128 nT time of max = 1274 min.(UT), 21:14 UT Xmax = 12.914 nT Y at Xmax = -0.804 nT endtime = 1309 min.(UT), 21:49 UT Xend = -5.008 nT amplitude = 19.042 nT base duration time = 55 min. 2sigma = 13.299 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0