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 = 1132 min.(UT), 18:52 UT Xbegin = -7.212 nT time of max = 1169 min.(UT), 19:29 UT Xmax = 10.466 nT Y at Xmax = -2.894 nT endtime = 1220 min.(UT), 20:20 UT Xend = -6.030 nT amplitude = 17.678 nT base duration time = 88 min. 2sigma = 13.299 nT duration at 2sigma = 0 min. flagbegin = 0 flagend = 0 flagxcheck = 0