Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 15.05.2017 beginning time = 1201 min.(UT), 20: 1 UT Xbegin = -7.094 nT time of max = 1242 min.(UT), 20:42 UT Xmax = 6.526 nT Y at Xmax = 8.032 nT endtime = 1283 min.(UT), 21:23 UT Xend = -3.012 nT amplitude = 13.620 nT base duration time = 82 min. 2sigma = 6.519 nT duration at 2sigma = 1 min. flagbegin = 0 flagend = 0 flagxcheck = 0